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  1. Z

    Need correct grease to use>>>>>>>>>>>

    I have a 1973 Mercury 25ss race engine that has a Quicksilver short lower unit with direct drive gear case (same gear case unit as used on Merc 20H). The prop shaft has a water pump cover that is secured with a large cone shaped cap with left hand threads. Inside the water pump cover are 2 sets...
  2. Z

    How to remove crank protector from 1973 25ss

    I have my 1973 25ss engine apart and the bottom crank seal needs to be replaced. Question - In the attached figure how do you remove the pressed on steel driveshaft protector cap at the crank bottom? Is heat the answer? This cap is about 0.060" greater OD than the crank OD and the extra...
  3. Z

    1954 Johnson Seahorse 10 hp data

    A friend has the motor above and would like to know the rated rpm and standard prop pitch and diameter so we can start somewhere near correct to prop it. He runs it on a 14 ft open fish boat with a semi flat bottom. Thanks in advance. Pete
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