You got it in one Lynn. The compressed air pushes the water back

into the

system maintaining coolant pressure during decent. My bottle is

about 1/2 US

gallon.
Ian RV6A Australia

     Ian,

      What is coolent level in your bottle when engine is cold. I am

trying to

determine if a one quart tank will provide enough expansion space for

coolent.

      My cooling system should hold approx. the same quantity as yours

since I

am using G.M. evaporators for radiators.

      Kelly Troyer

 Kelly

The coolant level in my bottle is half  way when cold. I will have a look at
the level when hot this Sunday and let you know. Somebody might know the
coolant capacity of the engine and rads etc. then we could work it out with
a pencil.
Alot depends on the elasticity of your plumbing. Mine is pretty well solid.

Ian Beadle

 
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