upper crankshaft seal source,66 3hp Evinrude

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  • solofly


    Replies: 2
    Topics: 1
    #260148

    Looking  for a replacement source for an upper crankshaft seal for 1966 Evinrude 3 hp folding motor. Thanks.


    outboardnut

    US Member - 2 Years
    Replies: 864
    Topics: 377

    solofly


    Replies: 2
    Topics: 1
    #260155

    Thanks….is the crankshaft seal in the parts list labeled differently? Nothing called a seal is listed. Did I miss something?


    labrador-guy

    US Member - 2 Years
    Replies: 688
    Topics: 50
    #260164

    Solo there is no seal on the top only a slinger.   The slinger diverts any gas oil mix that gets by the bearing to a duct that is connected to the carb side of the reed valve.  That duct must be open so the intake vacuum can draw the excess gas to be re burned.   This is OMC’s oil pumping system, to get extra lube to the main bearings.

    dale


    solofly


    Replies: 2
    Topics: 1
    #260281

    Thanks, That’s correct. I found a photo showing slinger with an O-ring on top. Is the O-ring generic…have to pull & try to match or is it common to other engines?


    labrador-guy

    US Member - 2 Years
    Replies: 688
    Topics: 50
    #260291

    Solo I should say that most of the old motors that I have had apart had a bushings on the crankshaft.  If there is an O ring it is usually between a roller bearing and the engine case.  An O ring will not last long against the spinning crankshaft.  1966 is to new for me!

    dale

    get’em wet!….don’t let’em set!


    seakaye12

    US Member - 2 Years
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