[C320-list] Engine seacock and no water out the exhaust - 27 hp, 3G Yanmar

[tharrison at innovations-plus.com]

When putting the new impeller in place. How do you know the direction of the
blades. They look pointing straight out to me. But on the new impeller there
are small (very) dimples on one side and none on the others. Do the dimples
go up or down?

The old ones have that as well. Now that I am looking at it.

Ted
Hull 424

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
Of Graeme Clark
Sent: Friday, July 15, 2016 1:41 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Engine seacock and no water out the exhaust - 27
hp, 3G Yanmar

Ted
Yes, I was writing from memory so quite possibly my mental model of the
seacock construction is in error!
Graeme

Sent from mobile: please excuse typos etc.!


> On 15 Jul 2016, at 18:04, <tharrison at innovations-plus.com>
<tharrison at innovations-plus.com> wrote:
> 
> Graeme, I think you are right. I just looked up what the seacock looks
like.
> The screws go into a plastic base. It is this plastic that I believe 
> is stripped.
> 
> So the epoxy would not work as you indicated.
> 
> Ted
> 
> -----Original Message-----
> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On 
> Behalf Of Graeme Clark
> Sent: Friday, July 15, 2016 12:45 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Engine seacock and no water out the exhaust - 
> 27 hp, 3G Yanmar
> 
> The danger is that the epoxy "plug" will not adhere to the plastic 
> cavity as this sort of oily polythene type of plastic is not good for 
> that Is there any way you can enlarge the old screw hole at the 
> deepest point so that the epoxy plug is bigger at the bottom and thus 
> retained by the surrounding material?
> Personally I'd drill out the old hole slightly larger than the outside 
> diameter of the screw that fits in it, then maybe use a smaller drill 
> to try and go at a cross angle to make the bottom a bit bigger before 
> filling as you describe But it's just my thought! I'm probably over
engineering it!
> Graeme
> #366
> 
> Sent from mobile: please excuse typos etc.!
> 
> 
>>> On 15 Jul 2016, at 17:35, <tharrison at innovations-plus.com>
>> <tharrison at innovations-plus.com> wrote:
>> 
>> Update: I have been told to pull the stripped screw from the seacock 
>> and fill the hole with epoxy and some fiberglass. The drill the hole 
>> and put the screw back in place. I was told this important as there 
>> is currently stress on 3 screws and not 4.  Any comments on doing 
>> this or not
> to do it?
>> 
>> 
>> Ted
>> 
>> -----Original Message-----
>> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On 
>> Behalf Of Warren Updike
>> Sent: Friday, July 15, 2016 12:12 PM
>> To: C320-List at Catalina320.com
>> Subject: Re: [C320-list] Engine seacock and no water out the exhaust 
>> -
>> 27 hp, 3G Yanmar
>> 
>> When our #62 was new to us, and while on a cruise with following sea 
>> in stiff winds, our engine overheated. This was just the start of a 
>> series of traumatic events on this trip. I'll cut to the chase. The 
>> impeller looked ok, but on removing the end-cap on the heat exchanger 
>> I found 7 pieces of impeller blades in three different colors. Seems 
>> these had been there since the day we bought the boat and chose that 
>> cruise to bounce into position enough to cut the flow causing
overheating.
> You never know.
>> 
>> Warren and Pattie Updike
>> 1994 C320 "Warr de Mar" #62
>> Middle River, Chesapeake Bay
>> 
>> -----Original Message-----
>> From: Doug Treff [mailto:doug at treff.us]
>> Sent: Tuesday, July 12, 2016 9:05 PM
>> To: c320-list at lists.catalina320.com
>> Subject: Re: [C320-list] Engine seacock and no water out the exhaust 
>> -
>> 27 hp, 3G Yanmar
>> 
>> Ted,
>> 
>> Here's a great video on the impeller change. Not a 320 but the engine 
>> is the same...
>> 
>> https://www.youtube.com/watch?v=yAba6BabHPs
>> 
>> You can skip the part about changing the antifreeze unless that is 
>> your desire. As far as the heat exchanger, let's cross that bridge 
>> only if you need to.
>> 
>> --
>> Doug Treff
>> doug at treff.us
>> 
>>> On Mon, Jul 11, 2016, at 01:37 PM, tharrison at innovations-plus.com wrote:
>>> 
>>> 
>>> The second question does anyone have the instructions to change the 
>>> impeller. Is it just a matter of taking the four bolts out? If 
>>> pieces of the impeller are in the water heat exchanger what is the  
>>> best way to get them out?
> 
>