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  1. nola mike

    Mercruiser alpha one gen 1

    Need a lot more info on what's going on, but no, the gear ratios on a v8 won't work on a 3l most likely. Maybe a 5.0 using a 1.62 would work on a 3.7, but in general the typical 1.47 wouldn't work with the typical 1.94ish on the 3.0l
  2. nola mike

    Miss firing Merc 7.4 mpi L29 2000 2855 Ciera SB

    So you tested the wiring as well?
  3. nola mike

    Starter Wiring, 4.3L Mercruiser

    Ah well, I have a relay in my setup, so would work fine. Unless people are specific on what they're working on, every engine is mine 😁
  4. nola mike

    Starter Wiring, 4.3L Mercruiser

    Why not wire the fuel pump starting circuit off the yellow/red slave solenoid output lead?
  5. nola mike

    Engine swap, OMC to mercruiser

    Are you talking keeping the omc setup? If so, yes long block is easiest. Otherwise pulley to prop Merc is the way to go. Anything else and you'll be chasing stupid random parts.
  6. nola mike

    Miss firing Merc 7.4 mpi L29 2000 2855 Ciera SB

    You had a code, doesn't seem like you did the troubleshooting for it.
  7. nola mike

    Boathouse Length vs Boat Length

    Can you back the boat in?
  8. nola mike

    Miss firing Merc 7.4 mpi L29 2000 2855 Ciera SB

    Looks like a pretty good flow chart. Bad ECT would cause it to run rich, not sure why it would only affect one side though. Does it miss only when warm?
  9. nola mike

    2.00 ratio Alpha one gen 2

    Different... Do you have twins? If so, one should be counter rotating, which is done in the gear housing. Any of the uppers will mate with the lowers, with potentially a small difference in overall drive ratio. Normally this isn't something you'd notice, but if you have twins, a small difference...
  10. nola mike

    2.00 ratio Alpha one gen 2

    Never understood a hunting gear set. In addition to the difficulties of reassembly, I'd think that you'd always want to spread the wear around to all the gears equally
  11. nola mike

    3.0 mercruiser ran for 5 min good. Then Just died?

    I mean, sure sounds like the float based on your previous posts. Have you tried tapping the carb while it's running to see if that helps?
  12. nola mike

    Merc 470 cam seal

    If you're going through the trouble, there is zero reason not to replace the seal as well. Do you really want to do the job again if the seal was bad?
  13. nola mike

    2.00 ratio Alpha one gen 2

    If it hasn't been mentioned already, you can just check the serial number of your drive and erase all doubt. But in general, on a 3.0, you'll want a general 2:1 ratio. 1.94., 1 98 isn't going to make a difference
  14. nola mike

    5.7 LX starter

    Just as an aside, my boat got submerged at the end of the season last year, working to restore it, I disassembled my DB electrical starter and cleaned it, rebuilding the carb as we speak, will fire it up either this weekend or next, I'll update my ongoing thread with that
  15. nola mike

    Pressure test 1990 Alph1 Gen1

    You can pressure test the halves separately to narrow things down
  16. nola mike

    5.7 LX starter

    Get one anyway. Ease of installation alone makes it worth the money. I've used db electrical for a few starters and alternators with good results. Very cheap as well
  17. nola mike

    Help with vibration from 1400-3500 RPM

    Pulley out of line, harmonic balancer, dead cylinder/misfire come to mind.
  18. nola mike

    5.7L Non-Vortec to Vortec conversion

    I had some plumbing/wiring issues; I did the same on my 4.3 and ran into some trouble because the 4 bbl carb sat differently on the manifold than the 2bbl. My fuel lines didn't fit right, and my throttle and shifter cables were routed differently. I needed to get a different bracket for those...
  19. nola mike

    Mercruiser 3.0 No Spark issues

    No, you can for sure have your symptoms with overly advanced timing. Get it right and see how it runs
  20. nola mike

    Mercruiser 3.0 No Spark issues

    Not seeing any signs of detonation, though they look pretty lean
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