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    Need Assistance to Diagnose Bravo 3 - 5.0L MPI Vibration

    Greetings, Seems I'm in a bit of a pickle. History No vibration The coupler was worn Installed new coupler & gimbal bearing Alignment tool moves w/2 fingers Now there’s a noticeable vibration 1000 - 3200 RPM (didn't go higher) This is noticeable both when tied up to the dock in neutral...
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    Torque Spec for Bravo 5.0 MPI Coupler Bolts

    Would anyone know which is the correct torque spec: (1) 50 ft lbs per the service manual 90-864260001 OR (2) 35.4 ft lbs per the piece of paper that came in the bag with the new coupler bolts Engine:5.0L MPI BRAVO - 0M600000 THRU 0W059999 The coupler is an OEM Mercruiser coupler # 8M0098795
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    Mercruiser MPI Won’t Stay Running

    Just completed a total gasket job on perfectly good running engine with 300 hours on it - head gaskets included. New Delco 41-993 plugs, cap, rotor, CPS, and Cool Fuel pump. The engine starts and runs smooth for a few seconds, then stalls. By feathering the throttle, it’ll try to stay running...
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