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    O-Rings????

    Mechanic just told me its going to cost me about $3,000 to rebuild my 74 mercruiser 165. The boat has has not been run since 2003. I have fuel in the oil, so mechanic said he was pretty sure the O-rings are "stuck"?? (does he mean damaged or bad?). Is it really that big of a project to...
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    Need help with 74 Mercruiser I/O

    I have fuel leaking into the oil. I'm pretty sure its not the fuel pump; I replaced it twice. Could the carborator be the problem, or is it something else? Please, can anybody help. I sure would appreciate it.
  3. C

    PLEASE HELP-1974 Mercruiser I/O, fuel leaking into oil????

    I have a 1974 Mercruiser I/O, Chevy 6 cylnd. I have fuel leaking into the oil and don't know how or where. I have replaced the fuel pump twice with no resolve. When I check the dip stick after running the boat I can smell and see fuel and the volume of "oil/fuel" is roughly 5 times more than...
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