Recent content by NMBuzz

  1. NMBuzz

    What is normal RPM for a 4.3L?

    Can someone please direct me to a place where I can find the specs for a 4.3L Mercruiser- specifically what RPM's I should be turning at or near WOT. (Currently at WOT RPM's are near 5,000 and the speed is near 40 MPH) This seems to be too high of RPM's and I am always a little uneasy when...
  2. NMBuzz

    Need help with alignment tool

    4.3L Mercruiser, Alpha One Gen II drive Will a universal clutch alignment tool work to align the flywheel coupler with a gimbal bearing? I have the motor back in (and I did not move the jam nuts on the motor mounts at all) but I'm having a hard time locating an alignment tool (without...
  3. NMBuzz

    Gear Oil Monitor HELP!

    Does anyone know of a tech. drawing of the gear lube monitor internal components? I cleaned a bunch of sludge out of mine, but during this the "float" (white round)? came off. I can get it back on but one end of it has a small rubber bushing inside it. I am trying to figure out if this goes up...
  4. NMBuzz

    starting problem 4.3L Mercruiser

    I have a 1993 Larson 17' with an I/O 4.3L Mercruiser 2bbl/ Alpha One drive. I have a problem with the starter engaging reliably. A little (pertinent) history- when I bought the boat I had a shop change the gimble bearing, exhaust and shift bellows, and impeller. The starter was frozen so I had...
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