Reply To: Johnson QD-16 base gasket

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December 15, 2023 at 12:32 pm #283243
frankr
Participant

    Unclear for sure. I can’t see your parts book, but I’m surprised that 377070 gasket and baffle kit appears on a 1955 QD-i6 parts book, or for that matter, even compatible with the 10 hp.  That mod came about in later years in response to powerhead failures on the 15 hp due to crankshaft seal failures.