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    Water Pump losing prime???

    So I have an 86 OMC Cobra with the 4.3. I mainly use in salt water so it has the heat exchanger style cooling system. When I purchased the boat, it had not been used for 2 years. I realized it had the old style exhaust manifolds on it so I changed both of those. I also changed the water pump...
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    OMC Cobra Gimbal Bearing Removal

    So I bought a an old 1986 Seaswirl Corsair with the 4.3 OMC Cobra. I used it for a few weeks this summer and the last time I used it, as I was backing away from dock, I heard and felt a thumping noise that matched the engine RPM. I killed the motor and used the kicker to get to the dock. Pulled...
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