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  1. #11
    Senior Member efwd's Avatar
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    Jun 2015
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    Default Re: EFWD Build

    I did a Leak down test Using a Differential compression tester. I only discovered the difference from reading the reviews on Amazon regarding that tester that was suggested. I took the rotax maint. course and they always referred to this as a differential compression test hence my incorrect use of the term. I got 77/80 all the way around. To muddy the water a bit, AviationPros.com refers to them as "direct compression test" (turning over the engine) and "differential compression test" (static motor and pressurizing the cylinder).
    Last edited by efwd; 03-08-2021 at 06:44 AM.
    Eddie Forward
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