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  1. M

    Trim leaks down

    4.3l cobra outdrive. The outdrive leaks down slowly. I have rebuilt the cylinders but it didn't help. I was wondering if anyone had something similar to happen. Is there an internal valve in the pump unit itself?
  2. M

    1990 4.3l omc stern runs rough

    Engine runs rough at low rpms and won't rev hardly at all. It will run for a couple of minutes before it dies then it usually starts back up. So far I have rebuilt carb(holley 2 bbl) replaced coil,condenser,points,plugs,rotor button, dist cap. I have unplugged esa at 4 prong and 2 prong...
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