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  1. J

    1979 Mercury Mariner 80 hp timing issues

    I'm trying to set the timing on my motor (serial #5385921), but I guess I just can't follow the directions correctly. I'm doing it with the 2 - 4 spark plugs grounded, the throttle cable unhooked, and TDC was found (using a piston stop tool) at 0 degrees. I've read the previous posts on the...
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