[C320-list] spin halyard crane
William Russell
RussellW at oacsd.org
Tue Aug 23 07:19:21 PDT 2011
My boat came to me with a spin halyard masthead crane already installed, so
I don't know the source. But it looks like one of the RigRite models. And It has bent
under load, so I'm looking for a replacement. Having one fabricated locally seems
like a good idea.
Bill Russell
Little Wing, 1998 Catalina 320 #545
Cayuga Lake, Ithaca, NY
>>> On 8/23/2011 at 8:13 AM, <c320-list-request at lists.catalina320.com> wrote:
Send C320-list mailing list submissions to
c320-list at lists.catalina320.com
To subscribe or unsubscribe via the World Wide Web, visit
http://lists.catalina320.com/listinfo.cgi/c320-list-catalina320.com
or, via email, send a message with subject or body 'help' to
c320-list-request at lists.catalina320.com
You can reach the person managing the list at
c320-list-owner at lists.catalina320.com
When replying, please edit your Subject line so it is more specific
than "Re: Contents of C320-list digest..."
Today's Topics:
1. By passing the water heater (Richard A. Walsh)
2. Re: By passing the water heater (John Meyers)
3. Re: By passing the water heater (Jeff Hare)
4. Re: Overheating (Henderson, David)
5. Re: Wet Cushions (Warren Updike)
6. Shower Sump Pump (Donald Lawson)
7. Re: Spinn Halyard Installation (smaloney1 at cogeco.ca)
8. Re: Shower Sump Pump (Stephen Cox)
9. Re: Overheating 3YM30 (Brad Kuether)
10. Re: Overheating 3YM30 (Donald Lawson)
11. Re: Overheating 3YM30 (David Swanson)
12. Re: Overheating 3YM30 (Brad Kuether)
----------------------------------------------------------------------
Message: 1
Date: Mon, 22 Aug 2011 13:21:22 -0600
From: "Richard A. Walsh" <walshrichard at msn.com>
To: <c320-list at lists.catalina320.com>
Subject: [C320-list] By passing the water heater
Message-ID: <SNT131-ds7085783EC3B8C04EEE146C32F0 at phx.gbl>
Content-Type: text/plain;charset="iso-8859-1"
I know it is only Aug. but I do like to prepare. Several of my dock mates with Catalina 36's by pass their water heater when decommissioning their boats for the winter. I have always just added about 8 gallons of anti-freeze and ran it through the system, and the water heater. Has anyone by passed the water heater? If so how? Thanks Rick #709.
------------------------------
Message: 2
Date: Mon, 22 Aug 2011 15:42:22 -0400
From: John Meyers <jcmeyers7 at gmail.com>
To: C320-List at catalina320.com
Subject: Re: [C320-list] By passing the water heater
Message-ID:
<CANEXtrK+p=HzjBGQK-q_PQYHvvnQtqy+kMXjEcaNk47fZviNJw at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I am interested in this too. Last winterization I ran antifreeze into the
hot water tank and and in the spring ran a couple water tanks out the hot
water faucet. We still have antifreeze smell in the hot water out of the
faucet.
So, my question is this. If I drain the hot water tank using the spigit by
the drawers will that drain the tank enough so that I don't need to put in
antifreeze? Or is there still water in the tank that will freeze and cause
problems?
By the way, I am going to use my air compressor to blow out all the water
lines and pump out any remaining water in the very bottom of the water
tanks. I may even take out the pump to make sure it is waterless.
I still plan to put antifreez in the holding tank and cooling system.
John
Wind Chime
406
On Mon, Aug 22, 2011 at 3:21 PM, Richard A. Walsh <walshrichard at msn.com>wrote:
> I know it is only Aug. but I do like to prepare. Several of my dock mates
> with Catalina 36's by pass their water heater when decommissioning their
> boats for the winter. I have always just added about 8 gallons of
> anti-freeze and ran it through the system, and the water heater. Has anyone
> by passed the water heater? If so how? Thanks Rick #709.
>
------------------------------
Message: 3
Date: Mon, 22 Aug 2011 16:14:06 -0400
From: Jeff Hare <catalina at thehares.com>
To: C320-List at Catalina320.com
Subject: Re: [C320-list] By passing the water heater
Message-ID: <1d5afb75-5984-4541-94b2-71f01998ca87 at email.android.com>
Content-Type: text/plain; charset=UTF-8
No need to bypass it. Just use your shop-vac and drain the system. Don't forget the stern shower and start with draining the water heater then dry the longest runs and end up with the galley sink.
We have done this for 10 years, although for the first couple I used a compressor to blow out the lines and that took longer.
I drain the aqualift muffler, then run a couple gallons through the engine and drain it again to take care of the engine.
Starting with a drained holding tank, I run a gallon of -60 through the head, a less than a half gallon through the fridge drain and about a gallon through each of the bilge pumps. Some years I have vacuumed the water out of the bilge pump hoses also.
When you get good at it, you're done and cleaned up in an hour.
-jeff
"Richard A. Walsh" <walshrichard at msn.com> wrote:
I know it is only Aug. but I do like to prepare. Several of my dock mates with Catalina 36's by pass their water heater when decommissioning their boats for the winter. I have always just added about 8 gallons of anti-freeze and ran it through the system, and the water heater. Has anyone by passed the water heater? If so how? Thanks Rick #709.
------------------------------
Message: 4
Date: Mon, 22 Aug 2011 17:16:07 -0400
From: "Henderson, David" <dhender at allstate.com>
To: <c320-list at lists.catalina320.com>
Subject: Re: [C320-list] Overheating
Message-ID:
<BAE53C7A257DC245A5BFFB383425F06706CDFA17 at a0185-xpo0017-s.ad.allstate.com>
Content-Type: text/plain;charset="us-ascii"
Jack, This may be too unique and obscure to be of general value, but on
the off chance you or others may benefit, here's a recent experience of
mine. I have suffered from overheating and running hot for years on my
2005 with a 3YM30. I have replaced numerous impellers and opened and
checked the exchanger to no avail. Next on my to do list is replacing
the thermostat and checking the exhaust elbow, neither of which have I
gotten around to just yet. But my "Aha moment" came this spring when it
overheated shortly after launching. I have often found seaweed clogs in
the hose between intake and strainer (sometimes I feel like my system is
some kind of seaweed magnet!). After removing the intake hose and
confirming it was clear, and checking impeller which was fine, I pushed
my finger into the strainer at the intake, outflow points as far as I
could and felt nothing there. Not satisfied, I next unbolted the black
strainer housing from the bulkhead and held it up to the light to look
into the intake side, and what did I find but a little almost round,
black piece of something wedged in there tightly. It almost looked like
a little bit of pea-stone, or a small acorn, but my guess is that it was
one of those little nodules you see on some seaweed. And it was just
oddly shaped enough that some water was likely passing around it but not
nearly enough. Since removing this obstruction, flow has improved
dramatically - obviously - but I guess the real point of the story is
that you have to check every inch of the system, and every nook and
cranny where debris could possibly hide or get stuck.
I still run a little too hot, so that thermostat and heat exchanger are
definitely next. Good luck.
Dave H.
Dottie B #1049
Message: 1
Date: Sun, 21 Aug 2011 16:58:24 -0400
From: "Jack McDonough" <mcdonough5 at verizon.net>
To: <C320-List at Catalina320.com>
Subject: Re: [C320-list] Overheating
Message-ID: <0585B6597A58431A82DFD2636058007E at johnf12eb04ca6>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Warren & Lew:
Yeh, I did check the heat exchanger, expecting to find that "aha"moment.
But -- nothing there. I opened both the front and back. Now, however,
the
engine pumps raw water like a champ. I'm now in the "if it ain't broke
don't
fix it" frame of mind.
jack
#947
----- Original Message -----
From: "Warren Updike" <wupdike at hotmail.com>
To: <C320-List at Catalina320.com>
Sent: Friday, August 19, 2011 4:34 PM
Subject: Re: [C320-list] Overheating
> So, you probably have a Yanmar. Ours is a Perkins. I'm not sure there
is a
> difference re. lost impeller vanes. Here is my story. Bought the
boat in
> '04. No problem for three years. Then, on a cruise, engine began to
> overheat, of course with a 20kt following wind. Turns out there were
at
> least 4 blades in the front of the heat exchanger. None of them were
from
> my
> tenure. So, surely it is possible to have old blades in the heat
exchange
> and not cause a problem until you are in the most inconvenient
situation
> for
> the problem to occur.
>
> Warren & Pattie Updike
> 1994 C320 #62 "Warr De Mar"
>
> -----Original Message-----
> From: Dennis Harris [mailto:dharris02 at suddenlink.net]
> Sent: Monday, August 15, 2011 2:04 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Overheating
>
> Just a thought...could it be that a broken water pump vane or other
debris
> is in the exit end of the heat exchanger? It could be loose so it
moves
> around but big enough to stop water flow out the exit if it stops
across
> the
>
> outlet opening. On time, water turbulence moves it away from outlet
> opening
>
> and you get normal pumping/water flow. Next time, turbulence moves it
so
> that it blocks the outlet, in which case, you get no flow and steam.
>
> Dennis Harris C320 694.
>
> ----- Original Message -----
> From: "Jack McDonough" <mcdonough5 at verizon.net>
> To: <C320-List at Catalina320.com>
> Sent: Monday, August 15, 2011 11:50 AM
> Subject: Re: [C320-list] Overheating
>
>
>> Dave:
>>
>> Yes, you may be right. The trouble may well be downstream. I was
hoping I
>> could avoid pulling more stuff apart but I guess I'll have to bite
the
>> bullet. Thanks for the suggestions.
>>
>> jack
>>
>>
>>
>> ----- Original Message -----
>> From: "Utility Email" <kswanson123 at comcast.net>
>> To: <C320-List at Catalina320.com>
>> Sent: Monday, August 15, 2011 11:05 AM
>> Subject: Re: [C320-list] Overheating
>>
>>
>>> Could there be a partial blockage in the mixing elbow or a partial
>>> blockage upstream of the strainer? It sounds like you have
thoroughly
>>> checked upstream of the pump, perhaps checking downstream might find
the
>>> culprit? If it came on suddenly, that would point to some type of
>>> marine
>
>>> life blockage was ingested, but of the strainer is clear, then it
would
>>> have to be upstream from that. I am guessing:
>>>
>>> 1. That the mixing elbow may have carbon/corrosion build up.
>>> 2. Water pump is not functioning adequately at low speeds. I'm
>>> guessing
>
>>> that the water pump is not providing enough head to force water
through
>>> the system. Seems like there could e a easy way to test this buy
>>> connecting a long clear hose between the pump outlet and the engine.
>>>
>>> Dave Swanson
>>> S/V Emily Ann
>>> 2007 C320 MK II, No. 1107
>>> Mukilteo, WA
>>>
>>> On Aug 15, 2011, at 6:13 AM, hcreech at comcast.net wrote:
>>>
>>>> Jack,
>>>> Unless I am reading this wrong you are running your engine at too
low a
>>>> rate of speed. This should not have any bearing on the water pump
>>>> situation but still way too low. If you continue to run at that low
>>>> speed you will only create a carbon build-up which is not good. I
run
>>>> mine continuously while crusing a 2800 RPM and only lower speeds
while
>>>> docking. When I took the initial diesel class they stressed that
low
>>>> speeds are very detrimental to diesels. They went on to say you
should
>>>> cruise at 2800-2900 RPM and can run at 3100 RPM for up to an hour
>>>> without causing any problems. The main point was to "Not Baby" the
>>>> diesel. Could be another problem, but regardless, if I am reading
this
>>>> right, you need to crank it up.
>>>>
>>>> Herb Creech
>>>> Cloud Chaser 606
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>> From: "Jack McDonough" <mcdonough5 at verizon.net>
>>>> To: C320-List at Catalina320.com
>>>> Sent: Monday, August 15, 2011 8:47:20 AM
>>>> Subject: [C320-list] Overheating
>>>>
>>>> A puzzling, intermittent overheating problem developed a couple of
>>>> weeks
>
>>>> ago with the 3GM30F Yanmar in my 2003 C-320.
>>>>
>>>> While traveling at low speed from an anchorage to a newly available
>>>> mooring one morning (maybe 10 - 15 minutes running time), the
engine
>>>> overheat alarm sounded. I managed to pick up the mooring, after
which I
>>>> pulled the raw water intake hose at the seacock and determined that
>>>> water was, in fact, coming into the system. I then checked to see
that
>>>> the strainer was clear and, finally, took apart the impeller
housing
>>>> and
>
>>>> inspected the impeller -- which was newly installed in May and
which
>>>> looked fine. I started the engine again and still got only steam
out of
>>>> the exhaust. A couple of tries later, however, the system once
again
>>>> pumped out water like a champ.
>>>>
>>>> I made a three-hour passage to another harbor under power the next
day
>>>> and everything was fine -- but the same problem occurred the
following
>>>> day. Again it blew steam -- but the following morning I got a
healthy
>>>> flow of water and headed home.
>>>>
>>>> Since then, I have again pulled the hose off the intake seacock
but,
>>>> this time, I took my digital wire coat hanger and fed it down
through
>>>> the intake passage to make sure there was nothing flopping around
in
>>>> there. I disconnected the other end of the hose -- at the strainer
--
>>>> and detemined that there was nothing in the hose. Then I removed
the
>>>> hose between the strainer and the impeller and confirmed that it,
too,
>>>> was clear.
>>>>
>>>> I have a sense that I'm more likely to be able to pump water if I
>>>> briefly goose the RPMs up to 2000 or a little more. But I've
consulted
>>>> my diesel guy and he says that shouldn't make any difference. It
should
>>>> pump water regardless.
>>>>
>>>> That's my story. Any ideas?
>>>>
>>>> Jack
>>>> #947
>>
>>
>
>
>
------------------------------
Message: 5
Date: Mon, 22 Aug 2011 17:57:37 -0400
From: Warren Updike <wupdike at hotmail.com>
To: <C320-List at Catalina320.com>
Subject: Re: [C320-list] Wet Cushions
Message-ID: <BAY156-ds4325E0440717C5D3D7CB6BE2F0 at phx.gbl>
Content-Type: text/plain; charset="UTF-8"
There are instructions in the manual for cleaning the cushions of various stains. I can't speak to a total wetting. I don?t have the manual at home; but, if you need the info, I'll bring it home and scan/send to you Allan.
We fully expect to be at the Annapolis Boat Show. Can we coordinate a 320 get-together? It would be great if we could plan a group dinner. There are places outside of the "boat show" area that will be more reasonably priced.
Warren
-----Original Message-----
From: Jeff Hare [mailto:catalina at thehares.com]
Sent: Monday, August 22, 2011 9:29 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Wet Cushions
Hi Allan,
The washing machine is not likely to work out very well. Unless you have experience otherwise, you may not be able to get the cushions back in the covers with the cushions we have. Early models were different. These had the foam compressed in a vacuum bag so they could fit in the covers. They break the seal when the covers were mostly zipped and they expanded tightly.
What we did when this happened to us was to mix up a bucket of woolite and wash them down with a hose on deck using lots of water to fully soak them. We did this in the morning on a sunny hot day and they dried nicely and have been fine since. No signs of the sticky dampness of salt.
-jeff
PS: are you going to the boat show this year? Shelly said she wants to go if she can get the time off. I wasn't planning on it but that got me thinking.
"Allan S. Field" <allan.field at verizon.net> wrote:
We have the dark blue, velour-like material on our cushions in the main
cabin. Big waves today combined with a partially opened hatch resulted in
soaked cushions. The question is, does anyone know what kind of cleaning
this material will tolerate? Can I put the covers in a washing machine?
Should they/can they be dry cleaned? Thank you!
Allan S. Field
Sea Shadow - #808
Columbia, MD
------------------------------
Message: 6
Date: Mon, 22 Aug 2011 16:28:58 -0700
From: Donald Lawson <dnclaws at aol.com>
To: C320-List at Catalina320.com
Subject: [C320-list] Shower Sump Pump
Message-ID: <D7D52A31-EAAD-4C98-A283-48F5F8268504 at aol.com>
Content-Type: text/plain; charset=us-ascii
I performed a routine check on systems this week getting ready for a long cruise. The shower sump pump did not turn on. I am getting power from the switch in the head to the pump. Switch is fine. My next move is to check the connection at the pump. In the event the connection is fine I will have to remove the pump. Has anyone removed and rebuilt the pump? I am not looking forward to working under the sink through that little door.
Don Lawson #1005
------------------------------
Message: 7
Date: Mon, 22 Aug 2011 19:58:32 -0400
From: smaloney1 at cogeco.ca
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Spinn Halyard Installation
Message-ID: <4e52ed28.7a.440b.12020 at cogeco.ca>
> I looked at the rig rite web site and they had the size and dimensions of a crane to fit my mast. Since I needed it
quick I took the design to a local machine shop and they fabricated one for me for $70 ( half price and no shipping). I
easily installed it and it took less then a day. Works well !
Shawn
Hull 14
> .. still would like to hear form anyone who has installed a crane or
> masthead block or sheave and any comments on such ...
>
> > Today's Topics:
> >
> > 1. Re: Asym halyard block or second jib halyard? (Pat Ireland)
> >
> >
> > ----------------------------------------------------------------------
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > Don
> >
> > Thanks for the input. Yes - this is a crusing request, unless you are
> > sailing next to us. ;<)
> >
> > In SF Bay it is common to see 25-30kt winds in the course of transiting the
> > Slot and less than 5kts in the North or South Bay. A sail plan that will go
> > up or down wind in 5kts or less and still deal with over 25kts is the
> > objective. We have the heavy air solution with our self tacking jib and
> > reefed main. What we are looking to address is the light air spectrum where
> > the small headsail falls short of drive. An asym is likely the solution,
> > since we can buy a used one. But the Doyle modified genneker/code 0
> > approach, that can be hardened up for windward work and then softened to
> > move off the wind, sounds exactly like what is needed. I really appreciate
> > hearing from the combined brain trust, so chime in if you have other
> > thoughts. Thank you for the help.
> >
> > Pat, 801
> >
> >
> > End of C320-list Digest, Vol 1201, Issue 1
> > ******************************************
> >
------------------------------
Message: 8
Date: Tue, 23 Aug 2011 10:17:54 +1000
From: "Stephen Cox" <scox at timmin.com>
To: <C320-List at Catalina320.com>
Subject: Re: [C320-list] Shower Sump Pump
Message-ID: <DB30F8890B8344C99ECB4C64850C4848 at 6S3PC1S>
Content-Type: text/plain;charset="us-ascii"
> In the event the connection is fine
> I will have to remove the pump. Has anyone removed and
> rebuilt the pump? I am not looking forward to working under
> the sink through that little door.
> Don Lawson #1005=
Don,
I have had to do this on my MK II, presumably yours is similar.
Two things of note:
1. The hose attachments to the pump are a clip. Don't spend hours trying to
undo clamps, you slide the clip part to one side and it all comes off.
2. I found it easier to undo the screws holding the board the pump is mount
on and take the whole assembly out rather than just the pump.
Stephen Cox
Tegwen #1141
------------------------------
Message: 9
Date: Mon, 22 Aug 2011 22:39:48 -0400
From: "Brad Kuether" <bkuether at comcast.net>
To: <C320-List at Catalina320.com>
Subject: Re: [C320-list] Overheating 3YM30
Message-ID: <757419A7722F4159A25B9352211F28AF at BradPC>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hey David (and anyone else with the 3YM) what is "hot"?
I have the 3ym30 and I am pushing 180 when running at 2100 or higher.
Something tells me this can't be right.
I know the water has gotten warmer, but I was running 165 in the spring.
No blockage in the strainer, impeller brand new every year, what are my next
steps?
I don't know if I am eligible for the recall or not, but do want to take
care of it so I don't have to worry anymore.
-Brad, Mary, Monica, and Jarod
"Independence"
2004 Catalina 320 Hull 1006
Middle River, MD
----- Original Message -----
From: "Henderson, David" <dhender at allstate.com>
To: <c320-list at lists.catalina320.com>
Sent: Monday, August 22, 2011 5:16 PM
Subject: Re: [C320-list] Overheating
Jack, This may be too unique and obscure to be of general value, but on
the off chance you or others may benefit, here's a recent experience of
mine. I have suffered from overheating and running hot for years on my
2005 with a 3YM30. I have replaced numerous impellers and opened and
checked the exchanger to no avail. Next on my to do list is replacing
the thermostat and checking the exhaust elbow, neither of which have I
gotten around to just yet. But my "Aha moment" came this spring when it
overheated shortly after launching. I have often found seaweed clogs in
the hose between intake and strainer (sometimes I feel like my system is
some kind of seaweed magnet!). After removing the intake hose and
confirming it was clear, and checking impeller which was fine, I pushed
my finger into the strainer at the intake, outflow points as far as I
could and felt nothing there. Not satisfied, I next unbolted the black
strainer housing from the bulkhead and held it up to the light to look
into the intake side, and what did I find but a little almost round,
black piece of something wedged in there tightly. It almost looked like
a little bit of pea-stone, or a small acorn, but my guess is that it was
one of those little nodules you see on some seaweed. And it was just
oddly shaped enough that some water was likely passing around it but not
nearly enough. Since removing this obstruction, flow has improved
dramatically - obviously - but I guess the real point of the story is
that you have to check every inch of the system, and every nook and
cranny where debris could possibly hide or get stuck.
I still run a little too hot, so that thermostat and heat exchanger are
definitely next. Good luck.
Dave H.
Dottie B #1049
Message: 1
Date: Sun, 21 Aug 2011 16:58:24 -0400
From: "Jack McDonough" <mcdonough5 at verizon.net>
To: <C320-List at Catalina320.com>
Subject: Re: [C320-list] Overheating
Message-ID: <0585B6597A58431A82DFD2636058007E at johnf12eb04ca6>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Warren & Lew:
Yeh, I did check the heat exchanger, expecting to find that "aha"moment.
But -- nothing there. I opened both the front and back. Now, however,
the
engine pumps raw water like a champ. I'm now in the "if it ain't broke
don't
fix it" frame of mind.
jack
#947
----- Original Message -----
From: "Warren Updike" <wupdike at hotmail.com>
To: <C320-List at Catalina320.com>
Sent: Friday, August 19, 2011 4:34 PM
Subject: Re: [C320-list] Overheating
> So, you probably have a Yanmar. Ours is a Perkins. I'm not sure there
is a
> difference re. lost impeller vanes. Here is my story. Bought the
boat in
> '04. No problem for three years. Then, on a cruise, engine began to
> overheat, of course with a 20kt following wind. Turns out there were
at
> least 4 blades in the front of the heat exchanger. None of them were
from
> my
> tenure. So, surely it is possible to have old blades in the heat
exchange
> and not cause a problem until you are in the most inconvenient
situation
> for
> the problem to occur.
>
> Warren & Pattie Updike
> 1994 C320 #62 "Warr De Mar"
>
> -----Original Message-----
> From: Dennis Harris [mailto:dharris02 at suddenlink.net]
> Sent: Monday, August 15, 2011 2:04 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Overheating
>
> Just a thought...could it be that a broken water pump vane or other
debris
> is in the exit end of the heat exchanger? It could be loose so it
moves
> around but big enough to stop water flow out the exit if it stops
across
> the
>
> outlet opening. On time, water turbulence moves it away from outlet
> opening
>
> and you get normal pumping/water flow. Next time, turbulence moves it
so
> that it blocks the outlet, in which case, you get no flow and steam.
>
> Dennis Harris C320 694.
>
> ----- Original Message -----
> From: "Jack McDonough" <mcdonough5 at verizon.net>
> To: <C320-List at Catalina320.com>
> Sent: Monday, August 15, 2011 11:50 AM
> Subject: Re: [C320-list] Overheating
>
>
>> Dave:
>>
>> Yes, you may be right. The trouble may well be downstream. I was
hoping I
>> could avoid pulling more stuff apart but I guess I'll have to bite
the
>> bullet. Thanks for the suggestions.
>>
>> jack
>>
>>
>>
>> ----- Original Message -----
>> From: "Utility Email" <kswanson123 at comcast.net>
>> To: <C320-List at Catalina320.com>
>> Sent: Monday, August 15, 2011 11:05 AM
>> Subject: Re: [C320-list] Overheating
>>
>>
>>> Could there be a partial blockage in the mixing elbow or a partial
>>> blockage upstream of the strainer? It sounds like you have
thoroughly
>>> checked upstream of the pump, perhaps checking downstream might find
the
>>> culprit? If it came on suddenly, that would point to some type of
>>> marine
>
>>> life blockage was ingested, but of the strainer is clear, then it
would
>>> have to be upstream from that. I am guessing:
>>>
>>> 1. That the mixing elbow may have carbon/corrosion build up.
>>> 2. Water pump is not functioning adequately at low speeds. I'm
>>> guessing
>
>>> that the water pump is not providing enough head to force water
through
>>> the system. Seems like there could e a easy way to test this buy
>>> connecting a long clear hose between the pump outlet and the engine.
>>>
>>> Dave Swanson
>>> S/V Emily Ann
>>> 2007 C320 MK II, No. 1107
>>> Mukilteo, WA
>>>
>>> On Aug 15, 2011, at 6:13 AM, hcreech at comcast.net wrote:
>>>
>>>> Jack,
>>>> Unless I am reading this wrong you are running your engine at too
low a
>>>> rate of speed. This should not have any bearing on the water pump
>>>> situation but still way too low. If you continue to run at that low
>>>> speed you will only create a carbon build-up which is not good. I
run
>>>> mine continuously while crusing a 2800 RPM and only lower speeds
while
>>>> docking. When I took the initial diesel class they stressed that
low
>>>> speeds are very detrimental to diesels. They went on to say you
should
>>>> cruise at 2800-2900 RPM and can run at 3100 RPM for up to an hour
>>>> without causing any problems. The main point was to "Not Baby" the
>>>> diesel. Could be another problem, but regardless, if I am reading
this
>>>> right, you need to crank it up.
>>>>
>>>> Herb Creech
>>>> Cloud Chaser 606
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>> From: "Jack McDonough" <mcdonough5 at verizon.net>
>>>> To: C320-List at Catalina320.com
>>>> Sent: Monday, August 15, 2011 8:47:20 AM
>>>> Subject: [C320-list] Overheating
>>>>
>>>> A puzzling, intermittent overheating problem developed a couple of
>>>> weeks
>
>>>> ago with the 3GM30F Yanmar in my 2003 C-320.
>>>>
>>>> While traveling at low speed from an anchorage to a newly available
>>>> mooring one morning (maybe 10 - 15 minutes running time), the
engine
>>>> overheat alarm sounded. I managed to pick up the mooring, after
which I
>>>> pulled the raw water intake hose at the seacock and determined that
>>>> water was, in fact, coming into the system. I then checked to see
that
>>>> the strainer was clear and, finally, took apart the impeller
housing
>>>> and
>
>>>> inspected the impeller -- which was newly installed in May and
which
>>>> looked fine. I started the engine again and still got only steam
out of
>>>> the exhaust. A couple of tries later, however, the system once
again
>>>> pumped out water like a champ.
>>>>
>>>> I made a three-hour passage to another harbor under power the next
day
>>>> and everything was fine -- but the same problem occurred the
following
>>>> day. Again it blew steam -- but the following morning I got a
healthy
>>>> flow of water and headed home.
>>>>
>>>> Since then, I have again pulled the hose off the intake seacock
but,
>>>> this time, I took my digital wire coat hanger and fed it down
through
>>>> the intake passage to make sure there was nothing flopping around
in
>>>> there. I disconnected the other end of the hose -- at the strainer
--
>>>> and detemined that there was nothing in the hose. Then I removed
the
>>>> hose between the strainer and the impeller and confirmed that it,
too,
>>>> was clear.
>>>>
>>>> I have a sense that I'm more likely to be able to pump water if I
>>>> briefly goose the RPMs up to 2000 or a little more. But I've
consulted
>>>> my diesel guy and he says that shouldn't make any difference. It
should
>>>> pump water regardless.
>>>>
>>>> That's my story. Any ideas?
>>>>
>>>> Jack
>>>> #947
>>
>>
>
>
>
------------------------------
Message: 10
Date: Mon, 22 Aug 2011 20:08:11 -0700
From: Donald Lawson <dnclaws at aol.com>
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Overheating 3YM30
Message-ID: <1F737EA9-74A6-4B24-ADCA-4960C9F80B16 at aol.com>
Content-Type: text/plain; charset=us-ascii
I run at about 160 at 2100 and push 170 at 2800 rpm on my 3YM30. I am a second owner. What recall?
Don #1005
On Aug 22, 2011, at 7:39 PM, Brad Kuether wrote:
> Hey David (and anyone else with the 3YM) what is "hot"?
>
> I have the 3ym30 and I am pushing 180 when running at 2100 or higher. Something tells me this can't be right.
>
> I know the water has gotten warmer, but I was running 165 in the spring.
>
> No blockage in the strainer, impeller brand new every year, what are my next steps?
>
> I don't know if I am eligible for the recall or not, but do want to take care of it so I don't have to worry anymore.
>
> -Brad, Mary, Monica, and Jarod
> "Independence"
> 2004 Catalina 320 Hull 1006
> Middle River, MD
>
> ----- Original Message ----- From: "Henderson, David" <dhender at allstate.com>
> To: <c320-list at lists.catalina320.com>
> Sent: Monday, August 22, 2011 5:16 PM
> Subject: Re: [C320-list] Overheating
>
>
> Jack, This may be too unique and obscure to be of general value, but on
> the off chance you or others may benefit, here's a recent experience of
> mine. I have suffered from overheating and running hot for years on my
> 2005 with a 3YM30. I have replaced numerous impellers and opened and
> checked the exchanger to no avail. Next on my to do list is replacing
> the thermostat and checking the exhaust elbow, neither of which have I
> gotten around to just yet. But my "Aha moment" came this spring when it
> overheated shortly after launching. I have often found seaweed clogs in
> the hose between intake and strainer (sometimes I feel like my system is
> some kind of seaweed magnet!). After removing the intake hose and
> confirming it was clear, and checking impeller which was fine, I pushed
> my finger into the strainer at the intake, outflow points as far as I
> could and felt nothing there. Not satisfied, I next unbolted the black
> strainer housing from the bulkhead and held it up to the light to look
> into the intake side, and what did I find but a little almost round,
> black piece of something wedged in there tightly. It almost looked like
> a little bit of pea-stone, or a small acorn, but my guess is that it was
> one of those little nodules you see on some seaweed. And it was just
> oddly shaped enough that some water was likely passing around it but not
> nearly enough. Since removing this obstruction, flow has improved
> dramatically - obviously - but I guess the real point of the story is
> that you have to check every inch of the system, and every nook and
> cranny where debris could possibly hide or get stuck.
>
> I still run a little too hot, so that thermostat and heat exchanger are
> definitely next. Good luck.
>
> Dave H.
> Dottie B #1049
>
>
>
>
> Message: 1
> Date: Sun, 21 Aug 2011 16:58:24 -0400
> From: "Jack McDonough" <mcdonough5 at verizon.net>
> To: <C320-List at Catalina320.com>
> Subject: Re: [C320-list] Overheating
> Message-ID: <0585B6597A58431A82DFD2636058007E at johnf12eb04ca6>
> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
> reply-type=original
>
> Warren & Lew:
>
> Yeh, I did check the heat exchanger, expecting to find that "aha"moment.
>
> But -- nothing there. I opened both the front and back. Now, however,
> the
> engine pumps raw water like a champ. I'm now in the "if it ain't broke
> don't
> fix it" frame of mind.
>
> jack
> #947
>
>
> ----- Original Message ----- From: "Warren Updike" <wupdike at hotmail.com>
> To: <C320-List at Catalina320.com>
> Sent: Friday, August 19, 2011 4:34 PM
> Subject: Re: [C320-list] Overheating
>
>
>> So, you probably have a Yanmar. Ours is a Perkins. I'm not sure there
> is a
>> difference re. lost impeller vanes. Here is my story. Bought the
> boat in
>> '04. No problem for three years. Then, on a cruise, engine began to
>> overheat, of course with a 20kt following wind. Turns out there were
> at
>> least 4 blades in the front of the heat exchanger. None of them were
> from
>> my
>> tenure. So, surely it is possible to have old blades in the heat
> exchange
>> and not cause a problem until you are in the most inconvenient
> situation
>> for
>> the problem to occur.
>>
>> Warren & Pattie Updike
>> 1994 C320 #62 "Warr De Mar"
>>
>> -----Original Message-----
>> From: Dennis Harris [mailto:dharris02 at suddenlink.net]
>> Sent: Monday, August 15, 2011 2:04 PM
>> To: C320-List at Catalina320.com
>> Subject: Re: [C320-list] Overheating
>>
>> Just a thought...could it be that a broken water pump vane or other
> debris
>> is in the exit end of the heat exchanger? It could be loose so it
> moves
>> around but big enough to stop water flow out the exit if it stops
> across
>> the
>>
>> outlet opening. On time, water turbulence moves it away from outlet
>> opening
>>
>> and you get normal pumping/water flow. Next time, turbulence moves it
> so
>> that it blocks the outlet, in which case, you get no flow and steam.
>>
>> Dennis Harris C320 694.
>>
>> ----- Original Message ----- From: "Jack McDonough" <mcdonough5 at verizon.net>
>> To: <C320-List at Catalina320.com>
>> Sent: Monday, August 15, 2011 11:50 AM
>> Subject: Re: [C320-list] Overheating
>>
>>
>>> Dave:
>>>
>>> Yes, you may be right. The trouble may well be downstream. I was
> hoping I
>>> could avoid pulling more stuff apart but I guess I'll have to bite
> the
>>> bullet. Thanks for the suggestions.
>>>
>>> jack
>>>
>>>
>>>
>>> ----- Original Message ----- From: "Utility Email" <kswanson123 at comcast.net>
>>> To: <C320-List at Catalina320.com>
>>> Sent: Monday, August 15, 2011 11:05 AM
>>> Subject: Re: [C320-list] Overheating
>>>
>>>
>>>> Could there be a partial blockage in the mixing elbow or a partial
>>>> blockage upstream of the strainer? It sounds like you have
> thoroughly
>>>> checked upstream of the pump, perhaps checking downstream might find
> the
>>>> culprit? If it came on suddenly, that would point to some type of
>>>> marine
>>
>>>> life blockage was ingested, but of the strainer is clear, then it
> would
>>>> have to be upstream from that. I am guessing:
>>>>
>>>> 1. That the mixing elbow may have carbon/corrosion build up.
>>>> 2. Water pump is not functioning adequately at low speeds. I'm
>>>> guessing
>>
>>>> that the water pump is not providing enough head to force water
> through
>>>> the system. Seems like there could e a easy way to test this buy
>>>> connecting a long clear hose between the pump outlet and the engine.
>>>>
>>>> Dave Swanson
>>>> S/V Emily Ann
>>>> 2007 C320 MK II, No. 1107
>>>> Mukilteo, WA
>>>>
>>>> On Aug 15, 2011, at 6:13 AM, hcreech at comcast.net wrote:
>>>>
>>>>> Jack,
>>>>> Unless I am reading this wrong you are running your engine at too
> low a
>>>>> rate of speed. This should not have any bearing on the water pump
>>>>> situation but still way too low. If you continue to run at that low
>>>>> speed you will only create a carbon build-up which is not good. I
> run
>>>>> mine continuously while crusing a 2800 RPM and only lower speeds
> while
>>>>> docking. When I took the initial diesel class they stressed that
> low
>>>>> speeds are very detrimental to diesels. They went on to say you
> should
>>>>> cruise at 2800-2900 RPM and can run at 3100 RPM for up to an hour
>>>>> without causing any problems. The main point was to "Not Baby" the
>>>>> diesel. Could be another problem, but regardless, if I am reading
> this
>>>>> right, you need to crank it up.
>>>>>
>>>>> Herb Creech
>>>>> Cloud Chaser 606
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Jack McDonough" <mcdonough5 at verizon.net>
>>>>> To: C320-List at Catalina320.com
>>>>> Sent: Monday, August 15, 2011 8:47:20 AM
>>>>> Subject: [C320-list] Overheating
>>>>>
>>>>> A puzzling, intermittent overheating problem developed a couple of
>>>>> weeks
>>
>>>>> ago with the 3GM30F Yanmar in my 2003 C-320.
>>>>>
>>>>> While traveling at low speed from an anchorage to a newly available
>>>>> mooring one morning (maybe 10 - 15 minutes running time), the
> engine
>>>>> overheat alarm sounded. I managed to pick up the mooring, after
> which I
>>>>> pulled the raw water intake hose at the seacock and determined that
>>>>> water was, in fact, coming into the system. I then checked to see
> that
>>>>> the strainer was clear and, finally, took apart the impeller
> housing
>>>>> and
>>
>>>>> inspected the impeller -- which was newly installed in May and
> which
>>>>> looked fine. I started the engine again and still got only steam
> out of
>>>>> the exhaust. A couple of tries later, however, the system once
> again
>>>>> pumped out water like a champ.
>>>>>
>>>>> I made a three-hour passage to another harbor under power the next
> day
>>>>> and everything was fine -- but the same problem occurred the
> following
>>>>> day. Again it blew steam -- but the following morning I got a
> healthy
>>>>> flow of water and headed home.
>>>>>
>>>>> Since then, I have again pulled the hose off the intake seacock
> but,
>>>>> this time, I took my digital wire coat hanger and fed it down
> through
>>>>> the intake passage to make sure there was nothing flopping around
> in
>>>>> there. I disconnected the other end of the hose -- at the strainer
> --
>>>>> and detemined that there was nothing in the hose. Then I removed
> the
>>>>> hose between the strainer and the impeller and confirmed that it,
> too,
>>>>> was clear.
>>>>>
>>>>> I have a sense that I'm more likely to be able to pump water if I
>>>>> briefly goose the RPMs up to 2000 or a little more. But I've
> consulted
>>>>> my diesel guy and he says that shouldn't make any difference. It
> should
>>>>> pump water regardless.
>>>>>
>>>>> That's my story. Any ideas?
>>>>>
>>>>> Jack
>>>>> #947
>>>
>>>
>>
>>
>>
>
>
>
>
------------------------------
Message: 11
Date: Mon, 22 Aug 2011 22:08:18 -0700
From: David Swanson <kswanson123 at comcast.net>
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Overheating 3YM30
Message-ID: <AB0A5C0A-4772-4553-ADA2-923449778B00 at comcast.net>
Content-Type: text/plain; charset=us-ascii
Brad,
My boat is the one manufactured after yours. Our 3YM30 has about 120 hours and it runs between 145 to 155 degrees at all operating speeds up to 2800 RPM in 58 degree Puget Sound seawater. When we had our boat in San Diego, it ran about the same temperature range plus 5 degrees since the water in SoCal was about 5 degrees warmer than Puget Sound.
Hope this helps.
Dave
David Swanson
S/V Emily Ann
2007 C320 MK II, No. 1107
Mukilteo, WA
On Aug 22, 2011, at 7:39 PM, Brad Kuether wrote:
> Hey David (and anyone else with the 3YM) what is "hot"?
>
> I have the 3ym30 and I am pushing 180 when running at 2100 or higher. Something tells me this can't be right.
>
> I know the water has gotten warmer, but I was running 165 in the spring.
>
> No blockage in the strainer, impeller brand new every year, what are my next steps?
>
> I don't know if I am eligible for the recall or not, but do want to take care of it so I don't have to worry anymore.
>
> -Brad, Mary, Monica, and Jarod
> "Independence"
> 2004 Catalina 320 Hull 1006
> Middle River, MD
>
> ----- Original Message ----- From: "Henderson, David" <dhender at allstate.com>
> To: <c320-list at lists.catalina320.com>
> Sent: Monday, August 22, 2011 5:16 PM
> Subject: Re: [C320-list] Overheating
>
>
> Jack, This may be too unique and obscure to be of general value, but on
> the off chance you or others may benefit, here's a recent experience of
> mine. I have suffered from overheating and running hot for years on my
> 2005 with a 3YM30. I have replaced numerous impellers and opened and
> checked the exchanger to no avail. Next on my to do list is replacing
> the thermostat and checking the exhaust elbow, neither of which have I
> gotten around to just yet. But my "Aha moment" came this spring when it
> overheated shortly after launching. I have often found seaweed clogs in
> the hose between intake and strainer (sometimes I feel like my system is
> some kind of seaweed magnet!). After removing the intake hose and
> confirming it was clear, and checking impeller which was fine, I pushed
> my finger into the strainer at the intake, outflow points as far as I
> could and felt nothing there. Not satisfied, I next unbolted the black
> strainer housing from the bulkhead and held it up to the light to look
> into the intake side, and what did I find but a little almost round,
> black piece of something wedged in there tightly. It almost looked like
> a little bit of pea-stone, or a small acorn, but my guess is that it was
> one of those little nodules you see on some seaweed. And it was just
> oddly shaped enough that some water was likely passing around it but not
> nearly enough. Since removing this obstruction, flow has improved
> dramatically - obviously - but I guess the real point of the story is
> that you have to check every inch of the system, and every nook and
> cranny where debris could possibly hide or get stuck.
>
> I still run a little too hot, so that thermostat and heat exchanger are
> definitely next. Good luck.
>
> Dave H.
> Dottie B #1049
>
>
>
>
> Message: 1
> Date: Sun, 21 Aug 2011 16:58:24 -0400
> From: "Jack McDonough" <mcdonough5 at verizon.net>
> To: <C320-List at Catalina320.com>
> Subject: Re: [C320-list] Overheating
> Message-ID: <0585B6597A58431A82DFD2636058007E at johnf12eb04ca6>
> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
> reply-type=original
>
> Warren & Lew:
>
> Yeh, I did check the heat exchanger, expecting to find that "aha"moment.
>
> But -- nothing there. I opened both the front and back. Now, however,
> the
> engine pumps raw water like a champ. I'm now in the "if it ain't broke
> don't
> fix it" frame of mind.
>
> jack
> #947
>
>
> ----- Original Message ----- From: "Warren Updike" <wupdike at hotmail.com>
> To: <C320-List at Catalina320.com>
> Sent: Friday, August 19, 2011 4:34 PM
> Subject: Re: [C320-list] Overheating
>
>
>> So, you probably have a Yanmar. Ours is a Perkins. I'm not sure there
> is a
>> difference re. lost impeller vanes. Here is my story. Bought the
> boat in
>> '04. No problem for three years. Then, on a cruise, engine began to
>> overheat, of course with a 20kt following wind. Turns out there were
> at
>> least 4 blades in the front of the heat exchanger. None of them were
> from
>> my
>> tenure. So, surely it is possible to have old blades in the heat
> exchange
>> and not cause a problem until you are in the most inconvenient
> situation
>> for
>> the problem to occur.
>>
>> Warren & Pattie Updike
>> 1994 C320 #62 "Warr De Mar"
>>
>> -----Original Message-----
>> From: Dennis Harris [mailto:dharris02 at suddenlink.net]
>> Sent: Monday, August 15, 2011 2:04 PM
>> To: C320-List at Catalina320.com
>> Subject: Re: [C320-list] Overheating
>>
>> Just a thought...could it be that a broken water pump vane or other
> debris
>> is in the exit end of the heat exchanger? It could be loose so it
> moves
>> around but big enough to stop water flow out the exit if it stops
> across
>> the
>>
>> outlet opening. On time, water turbulence moves it away from outlet
>> opening
>>
>> and you get normal pumping/water flow. Next time, turbulence moves it
> so
>> that it blocks the outlet, in which case, you get no flow and steam.
>>
>> Dennis Harris C320 694.
>>
>> ----- Original Message ----- From: "Jack McDonough" <mcdonough5 at verizon.net>
>> To: <C320-List at Catalina320.com>
>> Sent: Monday, August 15, 2011 11:50 AM
>> Subject: Re: [C320-list] Overheating
>>
>>
>>> Dave:
>>>
>>> Yes, you may be right. The trouble may well be downstream. I was
> hoping I
>>> could avoid pulling more stuff apart but I guess I'll have to bite
> the
>>> bullet. Thanks for the suggestions.
>>>
>>> jack
>>>
>>>
>>>
>>> ----- Original Message ----- From: "Utility Email" <kswanson123 at comcast.net>
>>> To: <C320-List at Catalina320.com>
>>> Sent: Monday, August 15, 2011 11:05 AM
>>> Subject: Re: [C320-list] Overheating
>>>
>>>
>>>> Could there be a partial blockage in the mixing elbow or a partial
>>>> blockage upstream of the strainer? It sounds like you have
> thoroughly
>>>> checked upstream of the pump, perhaps checking downstream might find
> the
>>>> culprit? If it came on suddenly, that would point to some type of
>>>> marine
>>
>>>> life blockage was ingested, but of the strainer is clear, then it
> would
>>>> have to be upstream from that. I am guessing:
>>>>
>>>> 1. That the mixing elbow may have carbon/corrosion build up.
>>>> 2. Water pump is not functioning adequately at low speeds. I'm
>>>> guessing
>>
>>>> that the water pump is not providing enough head to force water
> through
>>>> the system. Seems like there could e a easy way to test this buy
>>>> connecting a long clear hose between the pump outlet and the engine.
>>>>
>>>> Dave Swanson
>>>> S/V Emily Ann
>>>> 2007 C320 MK II, No. 1107
>>>> Mukilteo, WA
>>>>
>>>> On Aug 15, 2011, at 6:13 AM, hcreech at comcast.net wrote:
>>>>
>>>>> Jack,
>>>>> Unless I am reading this wrong you are running your engine at too
> low a
>>>>> rate of speed. This should not have any bearing on the water pump
>>>>> situation but still way too low. If you continue to run at that low
>>>>> speed you will only create a carbon build-up which is not good. I
> run
>>>>> mine continuously while crusing a 2800 RPM and only lower speeds
> while
>>>>> docking. When I took the initial diesel class they stressed that
> low
>>>>> speeds are very detrimental to diesels. They went on to say you
> should
>>>>> cruise at 2800-2900 RPM and can run at 3100 RPM for up to an hour
>>>>> without causing any problems. The main point was to "Not Baby" the
>>>>> diesel. Could be another problem, but regardless, if I am reading
> this
>>>>> right, you need to crank it up.
>>>>>
>>>>> Herb Creech
>>>>> Cloud Chaser 606
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Jack McDonough" <mcdonough5 at verizon.net>
>>>>> To: C320-List at Catalina320.com
>>>>> Sent: Monday, August 15, 2011 8:47:20 AM
>>>>> Subject: [C320-list] Overheating
>>>>>
>>>>> A puzzling, intermittent overheating problem developed a couple of
>>>>> weeks
>>
>>>>> ago with the 3GM30F Yanmar in my 2003 C-320.
>>>>>
>>>>> While traveling at low speed from an anchorage to a newly available
>>>>> mooring one morning (maybe 10 - 15 minutes running time), the
> engine
>>>>> overheat alarm sounded. I managed to pick up the mooring, after
> which I
>>>>> pulled the raw water intake hose at the seacock and determined that
>>>>> water was, in fact, coming into the system. I then checked to see
> that
>>>>> the strainer was clear and, finally, took apart the impeller
> housing
>>>>> and
>>
>>>>> inspected the impeller -- which was newly installed in May and
> which
>>>>> looked fine. I started the engine again and still got only steam
> out of
>>>>> the exhaust. A couple of tries later, however, the system once
> again
>>>>> pumped out water like a champ.
>>>>>
>>>>> I made a three-hour passage to another harbor under power the next
> day
>>>>> and everything was fine -- but the same problem occurred the
> following
>>>>> day. Again it blew steam -- but the following morning I got a
> healthy
>>>>> flow of water and headed home.
>>>>>
>>>>> Since then, I have again pulled the hose off the intake seacock
> but,
>>>>> this time, I took my digital wire coat hanger and fed it down
> through
>>>>> the intake passage to make sure there was nothing flopping around
> in
>>>>> there. I disconnected the other end of the hose -- at the strainer
> --
>>>>> and detemined that there was nothing in the hose. Then I removed
> the
>>>>> hose between the strainer and the impeller and confirmed that it,
> too,
>>>>> was clear.
>>>>>
>>>>> I have a sense that I'm more likely to be able to pump water if I
>>>>> briefly goose the RPMs up to 2000 or a little more. But I've
> consulted
>>>>> my diesel guy and he says that shouldn't make any difference. It
> should
>>>>> pump water regardless.
>>>>>
>>>>> That's my story. Any ideas?
>>>>>
>>>>> Jack
>>>>> #947
>>>
>>>
>>
>>
>>
>
>
>
>
David Swanson
kswanson123 at comcast.net
------------------------------
Message: 12
Date: Tue, 23 Aug 2011 08:13:47 -0400
From: "Brad Kuether" <bkuether at comcast.net>
To: <C320-List at Catalina320.com>
Subject: Re: [C320-list] Overheating 3YM30
Message-ID: <02EF1200B5554E80940BBB37C041A6DB at BradPC>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Apparently there was a Yanmar recall for heat exchangers.
I don't relish taking my boat to Annapolis to do this. At least not in the
hot summer.
----- Original Message -----
From: "Donald Lawson" <dnclaws at aol.com>
To: <C320-List at Catalina320.com>
Sent: Monday, August 22, 2011 11:08 PM
Subject: Re: [C320-list] Overheating 3YM30
I run at about 160 at 2100 and push 170 at 2800 rpm on my 3YM30. I am a
second owner. What recall?
Don #1005
On Aug 22, 2011, at 7:39 PM, Brad Kuether wrote:
> Hey David (and anyone else with the 3YM) what is "hot"?
>
> I have the 3ym30 and I am pushing 180 when running at 2100 or higher.
> Something tells me this can't be right.
>
> I know the water has gotten warmer, but I was running 165 in the spring.
>
> No blockage in the strainer, impeller brand new every year, what are my
> next steps?
>
> I don't know if I am eligible for the recall or not, but do want to take
> care of it so I don't have to worry anymore.
>
> -Brad, Mary, Monica, and Jarod
> "Independence"
> 2004 Catalina 320 Hull 1006
> Middle River, MD
>
> ----- Original Message ----- From: "Henderson, David"
> <dhender at allstate.com>
> To: <c320-list at lists.catalina320.com>
> Sent: Monday, August 22, 2011 5:16 PM
> Subject: Re: [C320-list] Overheating
>
>
> Jack, This may be too unique and obscure to be of general value, but on
> the off chance you or others may benefit, here's a recent experience of
> mine. I have suffered from overheating and running hot for years on my
> 2005 with a 3YM30. I have replaced numerous impellers and opened and
> checked the exchanger to no avail. Next on my to do list is replacing
> the thermostat and checking the exhaust elbow, neither of which have I
> gotten around to just yet. But my "Aha moment" came this spring when it
> overheated shortly after launching. I have often found seaweed clogs in
> the hose between intake and strainer (sometimes I feel like my system is
> some kind of seaweed magnet!). After removing the intake hose and
> confirming it was clear, and checking impeller which was fine, I pushed
> my finger into the strainer at the intake, outflow points as far as I
> could and felt nothing there. Not satisfied, I next unbolted the black
> strainer housing from the bulkhead and held it up to the light to look
> into the intake side, and what did I find but a little almost round,
> black piece of something wedged in there tightly. It almost looked like
> a little bit of pea-stone, or a small acorn, but my guess is that it was
> one of those little nodules you see on some seaweed. And it was just
> oddly shaped enough that some water was likely passing around it but not
> nearly enough. Since removing this obstruction, flow has improved
> dramatically - obviously - but I guess the real point of the story is
> that you have to check every inch of the system, and every nook and
> cranny where debris could possibly hide or get stuck.
>
> I still run a little too hot, so that thermostat and heat exchanger are
> definitely next. Good luck.
>
> Dave H.
> Dottie B #1049
>
>
>
>
> Message: 1
> Date: Sun, 21 Aug 2011 16:58:24 -0400
> From: "Jack McDonough" <mcdonough5 at verizon.net>
> To: <C320-List at Catalina320.com>
> Subject: Re: [C320-list] Overheating
> Message-ID: <0585B6597A58431A82DFD2636058007E at johnf12eb04ca6>
> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
> reply-type=original
>
> Warren & Lew:
>
> Yeh, I did check the heat exchanger, expecting to find that "aha"moment.
>
> But -- nothing there. I opened both the front and back. Now, however,
> the
> engine pumps raw water like a champ. I'm now in the "if it ain't broke
> don't
> fix it" frame of mind.
>
> jack
> #947
>
>
> ----- Original Message ----- From: "Warren Updike" <wupdike at hotmail.com>
> To: <C320-List at Catalina320.com>
> Sent: Friday, August 19, 2011 4:34 PM
> Subject: Re: [C320-list] Overheating
>
>
>> So, you probably have a Yanmar. Ours is a Perkins. I'm not sure there
> is a
>> difference re. lost impeller vanes. Here is my story. Bought the
> boat in
>> '04. No problem for three years. Then, on a cruise, engine began to
>> overheat, of course with a 20kt following wind. Turns out there were
> at
>> least 4 blades in the front of the heat exchanger. None of them were
> from
>> my
>> tenure. So, surely it is possible to have old blades in the heat
> exchange
>> and not cause a problem until you are in the most inconvenient
> situation
>> for
>> the problem to occur.
>>
>> Warren & Pattie Updike
>> 1994 C320 #62 "Warr De Mar"
>>
>> -----Original Message-----
>> From: Dennis Harris [mailto:dharris02 at suddenlink.net]
>> Sent: Monday, August 15, 2011 2:04 PM
>> To: C320-List at Catalina320.com
>> Subject: Re: [C320-list] Overheating
>>
>> Just a thought...could it be that a broken water pump vane or other
> debris
>> is in the exit end of the heat exchanger? It could be loose so it
> moves
>> around but big enough to stop water flow out the exit if it stops
> across
>> the
>>
>> outlet opening. On time, water turbulence moves it away from outlet
>> opening
>>
>> and you get normal pumping/water flow. Next time, turbulence moves it
> so
>> that it blocks the outlet, in which case, you get no flow and steam.
>>
>> Dennis Harris C320 694.
>>
>> ----- Original Message ----- From: "Jack McDonough"
>> <mcdonough5 at verizon.net>
>> To: <C320-List at Catalina320.com>
>> Sent: Monday, August 15, 2011 11:50 AM
>> Subject: Re: [C320-list] Overheating
>>
>>
>>> Dave:
>>>
>>> Yes, you may be right. The trouble may well be downstream. I was
> hoping I
>>> could avoid pulling more stuff apart but I guess I'll have to bite
> the
>>> bullet. Thanks for the suggestions.
>>>
>>> jack
>>>
>>>
>>>
>>> ----- Original Message ----- From: "Utility Email"
>>> <kswanson123 at comcast.net>
>>> To: <C320-List at Catalina320.com>
>>> Sent: Monday, August 15, 2011 11:05 AM
>>> Subject: Re: [C320-list] Overheating
>>>
>>>
>>>> Could there be a partial blockage in the mixing elbow or a partial
>>>> blockage upstream of the strainer? It sounds like you have
> thoroughly
>>>> checked upstream of the pump, perhaps checking downstream might find
> the
>>>> culprit? If it came on suddenly, that would point to some type of
>>>> marine
>>
>>>> life blockage was ingested, but of the strainer is clear, then it
> would
>>>> have to be upstream from that. I am guessing:
>>>>
>>>> 1. That the mixing elbow may have carbon/corrosion build up.
>>>> 2. Water pump is not functioning adequately at low speeds. I'm
>>>> guessing
>>
>>>> that the water pump is not providing enough head to force water
> through
>>>> the system. Seems like there could e a easy way to test this buy
>>>> connecting a long clear hose between the pump outlet and the engine.
>>>>
>>>> Dave Swanson
>>>> S/V Emily Ann
>>>> 2007 C320 MK II, No. 1107
>>>> Mukilteo, WA
>>>>
>>>> On Aug 15, 2011, at 6:13 AM, hcreech at comcast.net wrote:
>>>>
>>>>> Jack,
>>>>> Unless I am reading this wrong you are running your engine at too
> low a
>>>>> rate of speed. This should not have any bearing on the water pump
>>>>> situation but still way too low. If you continue to run at that low
>>>>> speed you will only create a carbon build-up which is not good. I
> run
>>>>> mine continuously while crusing a 2800 RPM and only lower speeds
> while
>>>>> docking. When I took the initial diesel class they stressed that
> low
>>>>> speeds are very detrimental to diesels. They went on to say you
> should
>>>>> cruise at 2800-2900 RPM and can run at 3100 RPM for up to an hour
>>>>> without causing any problems. The main point was to "Not Baby" the
>>>>> diesel. Could be another problem, but regardless, if I am reading
> this
>>>>> right, you need to crank it up.
>>>>>
>>>>> Herb Creech
>>>>> Cloud Chaser 606
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Jack McDonough" <mcdonough5 at verizon.net>
>>>>> To: C320-List at Catalina320.com
>>>>> Sent: Monday, August 15, 2011 8:47:20 AM
>>>>> Subject: [C320-list] Overheating
>>>>>
>>>>> A puzzling, intermittent overheating problem developed a couple of
>>>>> weeks
>>
>>>>> ago with the 3GM30F Yanmar in my 2003 C-320.
>>>>>
>>>>> While traveling at low speed from an anchorage to a newly available
>>>>> mooring one morning (maybe 10 - 15 minutes running time), the
> engine
>>>>> overheat alarm sounded. I managed to pick up the mooring, after
> which I
>>>>> pulled the raw water intake hose at the seacock and determined that
>>>>> water was, in fact, coming into the system. I then checked to see
> that
>>>>> the strainer was clear and, finally, took apart the impeller
> housing
>>>>> and
>>
>>>>> inspected the impeller -- which was newly installed in May and
> which
>>>>> looked fine. I started the engine again and still got only steam
> out of
>>>>> the exhaust. A couple of tries later, however, the system once
> again
>>>>> pumped out water like a champ.
>>>>>
>>>>> I made a three-hour passage to another harbor under power the next
> day
>>>>> and everything was fine -- but the same problem occurred the
> following
>>>>> day. Again it blew steam -- but the following morning I got a
> healthy
>>>>> flow of water and headed home.
>>>>>
>>>>> Since then, I have again pulled the hose off the intake seacock
> but,
>>>>> this time, I took my digital wire coat hanger and fed it down
> through
>>>>> the intake passage to make sure there was nothing flopping around
> in
>>>>> there. I disconnected the other end of the hose -- at the strainer
> --
>>>>> and detemined that there was nothing in the hose. Then I removed
> the
>>>>> hose between the strainer and the impeller and confirmed that it,
> too,
>>>>> was clear.
>>>>>
>>>>> I have a sense that I'm more likely to be able to pump water if I
>>>>> briefly goose the RPMs up to 2000 or a little more. But I've
> consulted
>>>>> my diesel guy and he says that shouldn't make any difference. It
> should
>>>>> pump water regardless.
>>>>>
>>>>> That's my story. Any ideas?
>>>>>
>>>>> Jack
>>>>> #947
>>>
>>>
>>
>>
>>
>
>
>
>
End of C320-list Digest, Vol 1204, Issue 1
******************************************
More information about the C320-list
mailing list