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

[tharrison at innovations-plus.com]

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?