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compression test without a Schrader valve

#1

B

Blubarb

Hi all.

Is it possible to use an automotive compression tester on a small 25cc leaf blower motor, in this case a McCulloch GBV345 blower.

I have heard that without a Schrader valve at the end of the adapter that goes into the spark plug hole you will get a situation where the tube acts as part of the cylinder volume and thereby giving a much lower reading.

Can I simply do something simple like double the reading or am up for a new compression tester? Perhaps some adapter?

Appreciate any ideas and thoughts.


#2

F

Forest#2

You need a small cc engine compression tester like you describe.
Lots of info on-line.


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