Reply To: Compression after new piston rings

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January 27, 2021 at 8:30 pm #228942
need2fish
Participant

    WRT the length of the hose from the plug to gauge, that length is irrelevant if you turn the motor over several times; the idea being to equalize the pressure at the plug end of the hose with the guage end of the hose. Once the hose is pressurized from a couple of revolutions, the guage will be correct.