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    OMC 400 upper gearcase help needed

    got a 1975 omc 400 electric shift that the upper gearcase was trashed in so I bought another gearcase got it all together and there is no steering. From what I can from diagrams this one I just bought is missing the worm gear for the steering. Was there a different gearcase that didn't come with...
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    75 omc 400 stringer impeller and swivel help needed asap

    so here is the problem drive is pumping zero water so I bought a new impeller and manual so I can do it right. I get it apart and impeller is fine looks just like the brand new. the drive was working fine and then quit pumping suddenly for no apparent reason. questions 1. the impeller housing...
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    3.0 omc runs hot

    So I got a 1975 Ozark Boat Works 17 ft, model 170, tri hull with a 140 horse 3.0 GM motor. From what I gather it has the 400 series lower unit. I have fixed everything on this boat that was wrong or needed replaced including starter, carb, lower tilt motor, solenoids, fuel pump and carpeting. I...
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