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  1. J

    Merc 1968 model 39 cooling water probs

    I have no cooling water coming out of my 1968 mod 39. I replaced a bad impellar and still don't have water out. Any suggestions?
  2. J

    1968 Merc model 39 impeller replacement

    I am trying to replace an impeller on my 1968 Merc model 39 3.9 hp and can't get the lower unit off. After removing the nut, do I also have to disconnect the shift mechanism (shift rod or linkage) before the lower unit drops out? If so, how? Seloc manual does not mention a shift diconnect for...
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