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  1. S

    mercruiser 7.4mpi has sudden loss of rpm-out of ideas

    Thanks for the Input. I assume u r talking about the cool fuel module. It is unlikely that this is clogged as I only run the boat in open fresh water usually 10-30 feet deep. Not having a laser is there some other way to test this? Also when it first occurred the water was probably only...
  2. S

    mercruiser 7.4mpi has sudden loss of rpm-out of ideas

    I have a 2001 Mercruiser 7.4 MPI engine in a 29 foot boat. this spring it started and ran just fine. With WOT I got to 4100-4200 RPM and the boat got up on plane. While cruising, the RPM dropped and i lost plane all of a sudden, then the RPM briefly surged back up. This repeated several...
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    Bravo 3 stern drive lower unit lube reservoir leaking - overpressure

    I have a 2001 Maxum SCR 2900 with a Bravo 3 and 7.4L. I notice blue oil smoke coming from the engine compartment after any run at 3500-4000 rpm for maybe 10-15 min or more. I figured out the lower unit lube reservoir is dripping onto the exhaust manifold. I could see lube leaking out of the...
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