Re: CD-11’s compression issue

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January 26, 2017 at 3:21 pm #51787
EUGENE NEKOWITSCH
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    The experience I’ve had rebuilding engines, I have three compression gauges. Two are the screw in spark plug hole like you are using. Never had any luck with readings. I went back to the old style rubber push in and hold, and get accurate readings 100% of the time.
    The screw in type would read the same as the push in , except I would lose the reading do to gauge leaking