[C320-list] Fw: [catalina320] Changing to Extended-Life Coolant

[Robert E. Sloat]

Below is additional information on antifreeze change over.  Someone also
posted this procedure on the 320 International site.

Bob Sloat
Savannah Hull # 894

----- Original Message ----- 
From: "Robert E. Sloat" <resloat at comcast.net>
To: "Catalina 320" <catalina320 at list.sailjazz.com>
Sent: Sunday, October 16, 2005 9:28 PM
Subject: Re: [catalina320] Changing to Extended-Life Coolant


 Don't forget to empty the hot water heater coolant loop.

I have hull 894 with a Yanmar 3GM30F engine and when changing the antifreeze
I needed about 1.5 gallons of diluted DexCool  at a 50% water ratio.  The
engine has a little less than 1 gallon of coolant capacity and the hot water
heater loop has about 1/2 gallon of antifreeze capacity.  If you just change
out the engine antifreeze without dealing with the hot water heater loop,
about 1/3 of the total coolant capacity has not been replaced.

After draining the engine, remove one of the hot water tank hoses from the
top front of the engine.  Keep the 2 coolant drains on the engine open.  Put
on the radiator cap and put your finger over the opening on the engine where
the hot water heater hose was connected.  Clean off the hot water heater
hose and then blow on the hose and the hot water heater loop is emptied
(about 1/2 gallon).

Bob Sloat
Savannah Hull # 894