Re: engine woes

[Steve Stegmann <stegmann@domain.elided>]

Tom,

I agree about compression tests.  My Scout was 150 lowest, 172 highest.
I take all plugs out, throttle closed and run the engine for 10 
compression strokes on each cyl.  Since these engines won't build 
pressure like an air compressor, pumping till the pressure no longer 
rises is a good way to go.  It is consistent.  That is the most important 
parameter.

I usually use a comp test just to make sure there are no blown gaskets or 
burnt valves.  As a test on rings it's an ok test.  

If you have an engine which is missing, if the compression is the cause 
you will find the compression reading down around zero.  Been there.

Steve

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Steven A. Stegmann
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