Mailing List flyrotary@lancaironline.net Message #4635
From: John Slade <sladerj@bellsouth.net>
Subject: RE: [FlyRotary] Re: Expansion Chambers
Date: Sat, 6 Dec 2003 09:41:12 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I tend to agree with the initial advise you received.  If your radiator cap is at the highest point of your cooling system then I  
believe that all you need is an overflow bottle/jug/container.  Well -- I also recommend a 21-24 psi radiator cap.    
Thanks, Ed, Al & Mark for you're input. 
I think I'll go with the simplest solution first, then add an expansion chamber if that doesn't work.
I'm thinking of getting one of those plastic overflow bottles with a screen washer bottle fitted up next to it from a breakers yard. I'd mount this high on the firewall. It would be simple to pipe the screen washer to the plenum for use in hot day climb-out. Any thoughts?
 
21-24 PSI seems a bit high for the cap, though. I have a 16lb cap. Do you think I should change it?
John
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