Re: Lower crank bearing seal on 12 HP (1956) Sea King

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October 17, 2017 at 5:08 pm #66330
frankr
Participant

    The information you have is correct. 12D14 does have a seal, the others you list do not. Reason: On the 12D14 and similar, the crankshaft sticks down into the exhaust housing where all the nasty is going on. The others have a different exhaust housing, and the crank does not stick down into it. So no seal is needed because no nasty in the area. Easy way to tell at a glance is the ones with rubber mounts have and need a seal.