’57 Evinrude 7-1/2 HP Oil Reservoir Welch Plug

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  • August 11, 2015 at 4:32 pm #2246
    Steve D
    Participant

      On this ’57 Evinrude I have, there is a recess on the side of the block that the parts manual says takes an "Oil reservoir welch plug", #44 in the diagram. I see it also in the ’55 and ’56 manual but not ’58. It’s only a recess not connected to anything and this particular motor didn’t have a plug. Is the plug needed…what’s its function (over an empty recess)?


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      August 11, 2015 at 7:14 pm #21916
      Mumbles
      Participant

        I’ve never pulled one out so I don’t know what’s on the other side but, I’m betting it was for mounting the block in a fixture back at the factory so they could hold it for machining purposes. If I have a scrap block I’ll pull it out to see just what it is covering up.

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