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Recent content by mabolt

  1. M

    1975 7.5hp Mercury Thunderbolt - Problems: Reverse lock, shift handle, & shift shaft

    Thanks for the response timguy, glad to know my lower unit is in fact the correct model for my motor. I hear ya, I'm leaning towards removing the Reverse Lock mechanism and seeing what's happening (have parts in hand). I'll be sure to contact Tim's Outboard in the future for parts if need...
  2. M

    1975 7.5hp Mercury Thunderbolt - Problems: Reverse lock, shift handle, & shift shaft

    Just removed the lower unit and see Part# 1630 4916 (with "B" and "2" stamped on other side). I have included some more shift shaft pix of where the "blind" spline is facing. Also noticed the screw on "bushing assembly" is different...should have a square head but this could simply have been...
  3. M

    1975 7.5hp Mercury Thunderbolt - Problems: Reverse lock, shift handle, & shift shaft

    Purchased this motor for $150 which had not been started in a few years. After dropping the Lower Unit, I noticed the impeller needed to be replaced. Got a new part, replaced impeller, and that's where everything went south! After attaching the lower unit, I have the following problems... 1...
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