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    1976 OMC 165 Overheating

    Alright 1976 OMC 165 overheating at odd intervals with other strange symptoms. Temp will get stable at 160 ish and then slowley start to rise and inlet hose felt hot so i thought i was sucking up exhaust in the swivel housing. I replaced the thermostat and checked the seals and repacked the...
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    Manifold part numbers

    I am looking at buying an original OMC manifold for my 1976 OMC 165. The parts diagrams all show a part number of 0984054 but the one the guy is selling is 909006 but he says its off an inline 6 omc 165. Does anyone know if these are interchangable and if it will work. I attatched a picture of...
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    76 OMC 165 4.3 inline 6

    Quick performance question I have been taking the boat out everyweekend and runs fine, I get around 20-25 knots at 3000rpm does this sound about average. its on a 19ft bellboy runs fine I guess I just expected it to go a bit faster for a ski boat. Thanks
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    1982 mercruiser 470

    I am looking to buy a boat that has a 470 in it, what are some spots I should check and things I should look for while checking it out. What kind of numbers should I be looking at for the compression check. I attatched a picture so if you see anyhting obviously wrong please let me know. Thanks...
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    1977 Omc 165

    I am currently looking at a 1977 Bellboy that has an OMC 165, I was able to take it out on the water a few days ago briefly. It ended up cracking the plastic fitting on the forward part of the exhaust manifold used for cooling and we were towed back in. I have a few questions about some things...
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