Re: 54 Johnson RD15A top seal (still) leaks

Home › Forum › Ask A Member › 54 Johnson RD15A top seal (still) leaks › Re: 54 Johnson RD15A top seal (still) leaks

September 9, 2015 at 8:44 pm #23541
frankr
Participant

    Just thinking, the carbon seal must remain in contact with the top of the bearing shell in order to maintain a constant seal as it runs. Is there an unusual amount of jumping up and down of the crankshaft as it runs? I know, hard to tell. But something to consider.