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 8:58 pm #23543
chris-p
Participant

    Greg,

    I believe, it was around 1962 the 28hp and up started using an o ring on the upper bearing.

    I too have seen some o rings incorrectly installed on earlier Big Twins and the like, I remove them. Defeats the purpose of the oil return system in my opinion.