Home › Forum › Ask A Member › 3cyl 65-70-75 OMC Rebuild › Re: 3cyl 65-70-75 OMC Rebuild

#30421
jerry-ahrens
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    Interesting reading. Dan, if I remember right, didn’t OMC put out a service bulletin that tells you how to do the tell tale hose modification ? If you ever come across that bulletin, I’d like to have a copy of that. It’s amazing to me how many of those effected 3 cly. motors are still running without the modification. I use to have a 1992 70. When I bought it, it was on the back of a pontoon boat and had a scuffed center cylinder. It had never had the above mentioned modification performed. After a rebuild, it turned out to be a great motor.