I have a 1 1/2 litre alum. camper fuel bottle that serves as my overflow
bottle, I may add 1/2 liter to the coolant in a 6 month season, I have never
had a overflow, my system has the standard Mazda thermostate and normally
runs at 186 F, in a long hard climb in 90 degee weather I may see around
200F, I use a 16 lb. cap, system runs at 12 PSI  . I'm curious as to why
some people are running a much higher pressure cap, am I missing something.

Jim Mosur
RV6
C-GAPF
----- Original Message -----
From: "Marvin Kaye" <marv@lancaironline.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, November 29, 2002 10:10 PM
Subject: [FlyRotary] Re: More cooling system test stuff.


> Posted for "Ed Anderson" <eanderson@carolina.rr.com>:
>
> I agree with Tracys findings below regarding the size of the coolant
> overflow bottle.  I build a 1 pint one integrated with my header tank.  I
> found that it would frequently overflow with the lose of a small amount of
> coolant (which would require refurbishment after a few flights).  I put a
2
> quart plastic overflow bottle and now have no coolant lost.
>
> Ed Anderson
>
>
> > Moral of the story:  Use a coolant recovery bottle larger than 1 quart.
I
> > just installed a 1.5 liter bottle.  Will flight test this setup
tomorrow.
>
> >>  Homepage:  http://www.flyrotary.com/