[C38] Heat exchange

[Tom T.]

Hello Bob,

Going the "whole 9 yards" is usually a good idea but have you priced the thermostat yet?

An easy way to test any thermostat is to drop it in a sauce with water and boil it on your range.  You can watch it as the water heats up and if the thermostat opens before the water boils, you have good thermostat.

Tom Troncalli

----- Original Message ----- 
From: 
To: listserve at catalina38.org
Sent: 9/6/2009 5:07:40 PM 
Subject: Re: [C38] Heat exchange


I have almost finished installing the new heat exchanger on "Bolero" in San Diego.  Just made my third run to the marine hardware store.  I will let you know how it works out.  I should probably go the whole 9 yards and replace the impeller and the thermostat too.

Bob Miller
"Bolero" at Southwestern YC in San Diego

In a message dated 9/6/2009 12:10:53 P.M. Pacific Daylight Time, panotte at shaw.ca writes:
So I"ve been reading all the info about heat exchangers and feeling prety smug as everything looks good on Impulse. I was going to change the oil yesterday and started the engine to warm things up, poking around as a good obsessive compulsive will I noticed a small leak where the rubber outflow hose connects to the heat exchanger. Ok you guessed it one little wiggle and there I was holding a rotted off  piece and muttering curses, while at the same time giving thanks for this site and all the info. available here. Of course we were planing one more trip however it will suffer only minamal delay thanx to this site.
 I noticed I think it was Steve mentioning 6 knots at 1800 rpm I run at 2200 most of the ti9me what prop do you use?
  Paul Impulse


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