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  1. K

    Mercruiser 5.0 MPI raw water pump impeller replacement

    Engine: Mercruiser 5.0 MPI year 2010 Sterndrive: Alpha one gen. 2 Gauge: Merc. Monitor Water inlet: Only from the bottom of the boat through raw water pump. No impeller in the drive Cooling: Closed cooling Hi I need to replace the impeller in water pump. I have throu the hull inlet. Is it safe...
  2. K

    Mercruiser 5.0 MPI no water pressure but cooling okay

    Engine: Mercruiser 5.0 MPI year 2010 Sterndrive: Alpha one gen. 2 Gauge: Merc. Monitor Water inlet: Only from the bottom of the boat through raw water pump. No impeller in the drive Cooling: Closed cooling First observation Steady alarm when increasing RPM. Alarm turns off when reducing RPM...
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