[C36IA] engine temp #2

[Paul Jay Walchenbach]

tom,

yes, fan belt is only a season old, in good shape and snug.

q: if the heat exchanger is cool to warm, and not hot, is that a  
'symptom'?  and if yes, of what?

pjw


On Jul 1, 2009, at 1:22 PM, tjsoko at aol.com wrote:

Steve,
Because of the way it is constructed (in one end, out the other), and  
because brass/bronze conducts heat so well, the whole thing would  
probably be hot.


Paul,
I know this is a really stupid question, but I have to ask it, because  
it happened to me.  Is the "fan belt" in one piece and operating  
properly?  If not, your circulating pump won't be circulating any  
water, and the engine would overheat right away, yet water would still  
be coming out the exhaust.

Tom Soko


-----Original Message-----
From: Steven Jones <stevengjones at yahoo.com>
To: Catalina 36 Association Mailing List <c36list at c36ia.com>
Sent: Wed, Jul 1, 2009 3:39 pm
Subject: Re: [C36IA] engine temp #2

Paul,
I have had recent experience with removing and replacing the heat  
exchanger.
But first, if you suspect this may be the issue, it's very easy to  
remove the round end plates off both ends to check inside.
When replacing, each has two gaskets, one large one the size of the  
round end cap, the other a small o-ring to seal the bolt- this ring  
goes on the inside of the plate I think, check while removing yours.

If you have to remove it, it's not hard, less than an hour to undo the  
hoses and remove the clamps that hold it.
Refer to Fred J's email about two weeks ago how he held the two-stiff-  
holding straps to get the bold started.  I did the exact same thing a  
year ago!
Good recommendation.

But one thing, if the H/E (heat exchanger is the problem, wouldn't one  
end by hot to the touch?  Tom S?
Attached is a photo of what one should look like looking down the axis  
(more or less) of a clean H/E.
AND.... a little photo-write up I did about the pencil zinc which  
shows crud before having it cleaned

Steven Jones 2164 Seal Beaach CA


From: Paul Jay Walchenbach <pjwalch at sprynet.com>
To: Catalina 36 Association Mailing List <c36list at c36ia.com>
Sent: Wednesday, July 1, 2009 12:12:02 PM
Subject: [C36IA] engine temp #2

the leaking 'water' was in the pan/tray below the oil pan and engine  
and not in the oil (no evidence of water in the oil, no froth).

green coolant overflow level normal in cockpit locker.  thru hull  
open, strainer clean, water splashing out exhaust.

i am thinking thermostat or heat exchanger.  question is, how to i  
trouble shoot to isolate the problem?

and

if it is the heat exchanger, how do i 'clean' or if needed, replace?
paul jay walchenbach
s/v mata hari
#1660
seattle


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