Search results

  1. F

    2001 Mercruiser 496 mag PCM555 overspeed warning

    Hello experts, I just bought a 2001 466 mag used and this is the report I got from seller. Engine RPM's looked great when i first saw it. Before I install it someone mentioned the overspeed warning may be problematic. I cant imagine it could have damaged the engine as the RPM's don't indicate...
  2. F

    Mercruiser engine revs from 3200 rmp to 3400 rpm and back

    Hello all, Ive been running my 1998 5.7 ltr mercruiser EFI throttle body corb with Bravo 3 drive. It runs smoothly, no backfires. I feel it used to go much faster. I noticed I was running at 3200 RPM and at times it would go up to 3400 RPM's without touching the trottle, and then back down to...
  3. F

    scoring/grinding sound while in gear

    I accidentally started my 5.7 litre bravo 3 drive engine while the drive was up, and the boat shook heavily, shut it down after 8 seconds. Did it again for another 8 second try before I realized the drive was full up. Now the boat runs and sihfts fine, but I hear a scoring sound while in gear...
  4. F

    mercruiser grinding when starting, missing tooth, hydrolock?

    Hello, I have a 1998 5.7 litre fresh water cooled mercruiser. I am the 3rd oner. This will be my 3rd season using. Orig owner used boat upsate NY in fresh water lakes untill 2007. 2nd owner used boat in saltwater untill 2010. My First season in 2011 no problems. last season towards end, I...
Top