Hi Josh,
Great input! Very clever idea for removing pre-combustion chamber as
well. I wish I had thought of it sooner.
Fair winds,
Gary
~~~~~~~_/)~~~~~~
On Thu, Aug 13, 2015 at 5:44 PM, Josh Muckley via CnC-List <
cnc-list@cnc-list.com> wrote:
> If the precombustion chambers get stuck again, I pull the fuel shutoff and
> turn (bump) the engine over with the injectors out. It doesn't hurt to
> have something to cushion the chamber as it is ejected from the port.
>
> I think the aluminum sleeve is fine. I can't figure out how it would work
> with out holes in it. It has to have coolant on the inside and outside.
> Just as long as the saltwater tubes don't leak you should be fine.
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
> On Aug 13, 2015 4:16 PM, "Gary Russell via CnC-List" <
> cnc-list@cnc-list.com> wrote:
>
>> Well, I bought a C&C 37+ a few weeks ago and have been having nothing but
>> trouble. It started with a fuel injector seal failure that allowed
>> combustion gases to escape into the cabin. Below the injectors are
>> pre-combustion chamber that where frozen in place requiring the cylinder
>> head to be removed. While the head was out, I decided to do a valve job.
>> And since the heat exchanger had to be removed, I decided to have it
>> cleaned out at a radiator shop. There is an aluminum sleeve around the
>> cooling tubes in the heat exchanger that had perforated. My understanding
>> is that raw water circulates through the tubes and fresh water surrounds
>> them. It seems there is fresh water on both the inside and outside of the
>> aluminum tube, so I'm not sure if the perforations are a problem. The
>> radiator shop guy wasn't sure either. It wouldn't matter, except the heat
>> exchanger is no longer available from Yanmar and the cooling tube assembly
>> is $1K, and can only be replace if (big if) I can get the frozen one out.
>> What happens if I ignore the problem? The radiator guy pressure tested the
>> assembly and it held pressure. Any ideas? I'm really desperate!
>>
>> Gary
>> '90 C&C 37+
>> High Maintenance
>> East Greenwich, RI, USA
>> ~~~~~~~_/)~~~~~~
>>
>>
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