Reply To: Cam Won’t stay in position 1956 Johnson 10 hp QD-17B

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February 22, 2023 at 10:15 am #273018
aquasonic
Participant

    As Mumbles stated, if you’re lucky enough to own the timing fixture with the flywheel nut finger tightened, problem solved.

    frankr wrote:

    That is normal on that motor.  The flywheel holds the cam down when installed.  You can adjust the points thru the hole in the flywheel OR fabricate yourself a “tool” to hold the cam down.  A piece of some sort of tubing will work.  I think I made mine from a piece of electrical conduit.

    I’m thinking that this involves a flywheel nut inside of the conduit, with the conduit extending beyond the flywheel nut far enough to hold the cam in place. Is that the setup?

    Maybe a tool could be made from a fine threaded hex spacer, by boring out some of the threads. I guess it would depend on the OD of the spacer. It would have to fit over the  crankshaft.

    Improvise-Adapt-Overcome