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  • Spark plug angle

    I need to time a xlch but not by the timing mark and want to determine the piston height without pulling the head. Does anyone know the exact angle of the spark plug so I can triangulate the measurement?

  • #2
    Originally posted by otis71 View Post
    I need to time a xlch but not by the timing mark and want to determine the piston height without pulling the head. Does anyone know the exact angle of the spark plug so I can triangulate the measurement?
    Otis!

    Math adds error.

    Heres's a gutted sparkplug with a small vinyl tube installed.
    Some oil and bubbles in the tube will rise and fall with the piston.
    TDC can be precisely located, and your degree wheel set.

    ....Cotten
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    Last edited by T. Cotten; 10-31-2018, 07:10 PM.
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

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