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    merc 650 lower bearing check valve ?

    I do not know how I would hadnle this engine without this forum! I have a 67 merc 650 4. The lower crank bearing was really rough, I notice on a parts diagram that I found ( the website for BAM), that a check valve is called out for the lower bearing carrier, but the part is unavailable. I...
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    What goop to use for case halves merc 650

    Hi, What goop do I need to use when I reassemble the case halves for my merc 650? I know there is no gasket there, some have told me the wrong sealant can be washed away by the gas vapor in the case. Also, is it safe to re use the piston pin retainer clips? This was always a no no on 2 stroke...
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    merc 650 (4) teardown Crank is stuck!

    ooops figured it out, crossover hose fitting broken off in casting holding reed assy in place, got piece out with an easy out.
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    4 cyl re assembly without ring compressor?

    It it possible to re assmble a 650 merc 4 cyl without the fancy mercury ring compressors? Any tricks to do it without the tool? Thanks
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    ressurected 1967 650 runs "sort of"

    Greetings, I pulled a 67 Merc 650 out of the junk yard and have it running. But not real well. I fixed the hole in the water jacket cover, put in a new impeller and seals and pressure tested the lower unit. I ran "sea foam" through the engine mixed in with the gas and gave it a heavy "Deep...
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    67 Merc 650 hole in water jacket

    :confused: I have an old merc 650 it seems to run OK but the cover on the left side of the power head (as viewed) from the rear has a hole corroded through it. Water squitrs out when the eninge runs. The book I have does not have good pictures. Is this a water jacket cover? The book makes it...
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    Merc 650 water coming out vent above cav plate

    I picked up a 1967 Mec 650 for a couple of hundred bucks. We put a new impeller and pump housing in it as a matter of course. When running it on muffs there is water comming out those slots just above the cavitation plate. Is that normal? Water is coming out of the teltale so the tube must be...
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