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  1. C

    Guardian warning above 4000 RPM

    The impeller was intact and quite frankly still quite serviceable. Still looked new. Not familiar with "bravoitis but the boat is used in fresh water. But worth a check. I will do the "T" and a separate pressure gauge test first but good to know about the hose. The low pressure is new as the...
  2. C

    Guardian warning above 4000 RPM

    I have the 5.0 MPI engine that will run all day under 4000 RPM but the water pressure is showing only about 6.5 PSI. Above 4000 RPM I get a guardian warning which I believe is due to low water pressure. The engine only has 124 hours and the impeller on the pump was recently replaced, Engine...
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