Mailing List flyrotary@lancaironline.net Message #28337
From: george lendich <lendich@optusnet.com.au>
Subject: Re: [FlyRotary] Re: Radiator Expansion Tank
Date: Sat, 10 Dec 2005 09:00:21 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Al, Rusty and others.
 
I've been a little confused with the set- up recommended. Do you have a pressure cap on the Radiator as well as the Expansion tank and do you have an overflow bottle attached to the expansion tank.
I've also seen where the rad pressure cap is not on the rad but on the return to the pump.
 
I would really like to sort this out so that I get a clearer picture of the correct set-up.
 
Advice appreciated.
 
George ( down under)
 
 
 
Or you can do what I did.  Go to your local fire extinguisher service/refill place, and check for one of their reject bottles that is about 1 1/2 quarts.  These are lightweight aluminum bottles, usually painted red.  On mine I was able to just peel the paint off, no paint remover required.  I bought a cap neck from one of the on-line specialty shops, and took it to my favorite aluminum welder for welding on to the bottle.  Result is a nice lightweight tank that was the right configuration for me (see photo).  Also installed a low-level switch.

 

Al

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