Reply To: Johnson FD-12 Gearcase rebuild

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May 29, 2023 at 12:30 pm #276560
frankr
Participant

    Assuming it has the correct pinion washer, DO NOT substitute it.  Find and correct the real problem.  Do you have the gearcase removed from the exhaust housing?  If not, could the drive shaft splines be seized in the crankshaft and not being allowed to float up and down a bit?