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    1990 Mercruiser 4.3 175hp intermittent knock 4002 4900 RPM

    Engine has good static compression 150 lb per cylinder new ignition wires plugs, new rotor cap and pick up sensor. Carburetor is 2 Barrel rebuilt with set up float perhaps on the high side spec. Im running a 17-pitch prop for out of the whole power for a slalom skier so engine will tack up to...
  2. K

    Mercruiser Alpha I Generation 1 1990 .I need the specs for the pinion nut tension

    Need the pinion nut specification for the alpha 1 gen 1 horizontal bearing cluster. Videos I have seen speak of rolling torque of 4-6 inch pounds and another video suggests 80 ft pounds...Big difference. Please help asap! I put new u joints and and broke the bearing assembly down for easier...
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