[C320-list] Bleeding calorifier for cooling?

[Larry Frank]

Michael,

I have the Westerbeke too.  The attachment did not come through at least
on the message I received. Could you please send it directly to my email
address which is larry.frank at stx.rr.com?  I think this could be very
helpful next time I change the antifreeze.

In the past I have used a small electric pump to circulate antifreeze
solution through the water heater loop by attaching the pump discharge to
the supply to the heater that is located at the engine and routing the
return from the water heater into a bucket.  The pump is submerged in the
antifreeze solution in the bucket.  Once the water heater loop is full I
quickly reconnect the hoses to the engine taking care to spill as little
as possible.  This process works well but has the potential to become a
disaster quickly if one loses control of the various hoses and sprays
antifreeze solution where it does not belong.

Your process sounds much better.

Larry
WindSwept C320 #246

On 3/21/17, 4:57 AM, "Michael McCretton" <michaelmccretton at hotmail.com>
wrote:

>Hi Graeme
>
>I am not sure if this helps as I have a Westerbeke engine but I replaced
>my hoses a couple of years ago and had the same problem. The answer was
>to open a bleed valve which is postioned at the highest point of the
>engines hot water circuit for the calorifier.the. I have attached a
>photo which shows where it is on my engine. I recollect that you have a
>Yanmar engine. Hopefully they have something similar.
>
>It was not very effective until I ran the engine and I had to open it
>very gently because of the pressure.
>
>Regards
>
>Michael
>
>
>
>On 18/03/2017 14:08, Graeme Clark wrote:
>> This will be first year I am attempting to re-commission and
>>de-winterise my engine
>> I have fitted a new pump impeller and refitted the fan belts but was
>>wondering whether there will potentially be an airlock in the heating
>>system, especially the  loop that goes to the calorifier
>> There are a lot of valves and faucets on the calorifier which I have
>>never previously touched!
>> Do I need to bleed anything and if so, how?
>> Thanks
>> Graeme
>> #366, 1996
>>
>>
>> Sent from mobile: please excuse typos etc.!
>>
>>
>