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

[Graeme Clark]

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?
> 
>