Home › Forum › Ask A Member › 55 RDE-17, 25 hp, Power Head O-rings, etc › Re: 55 RDE-17, 25 hp, Power Head O-rings, etc
July 13, 2018 at 2:15 am
#79469
I usually test at 10 psi. If it holds 10 move down to around 6 and see if it still holds. In my experince so far with OMC split gearcases, if they hold 10, they’ll hold 6. The shift rod O-ring is usually the first thing to start leaking on these. Sometimes that is the only thing that is leaking if there is a leak. Other gearcases may not behave this way, but most of the ones I work on are the split 2-piece OMC.
-Ben
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