Scott Tilton wrote:
>Have I got a leak between the combustion chamber and the water jacket. . .
>and I'm pumping "exhaust" into the cooling system?
>
Could be. There is an entertaining test for this... remove the rad cap,
clamp off the overflow hose and stretch a large-opening 'balloon' over
the neck of the radiator. You might find something suitable at your
local drug store ;^)
Start the engine and see if the 'balloon' inflates. If it does you can
further isolate the problem by using an air compressor with the hose
hooked to the spark plug fitting from your compression gauge. By trying
each cylinder while it is at TDC (gearbox in gear and handbrake on) you
can even determine which cylinder has the leak.
Geo Hahn
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