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  1. Scott06

    Repowering 97 crownline. Best options?

    this would be a good choice if u have an alpha drive https://www.michiganmotorz.com/5-7l-complete-engine-package-357-magnum-alpha-4v-mercruiser-applications if u have a bravo https://www.michiganmotorz.com/5-7l-complete-engine-package-357-magnum-bravo-4v-mercruiser-applications i bought a...
  2. Scott06

    Repowering 97 crownline. Best options?

    If you get a long block or even easier complete bobtail yes easy swap easier than car or truck just need to lift it higher than a typical engine hoist . Chain fall off a high beam forklift etc.
  3. Scott06

    2009 regal 2000 rx 220 hp mpi

    I would drop down to a 17 or 18 if going from 3 to 4 blades assuming your tach is accurate (might be worth a sanity check with a shop tach). For watersports I had good luck with michigan votex 4 blades and its a cheap whay to cut your teeth on prop swapping . What SS 3 blade is the loaner...
  4. Scott06

    2004 Crownline 4.3- No power to Key but power to accessories.

    The purple is the ignition circut thats why the fuse was blowing and killing the engine
  5. Scott06

    Repowering 97 crownline. Best options?

    Youll need a complete bobtail like this https://www.michiganmotorz.com/mercruiser-350-mpi-alpha-complete-engine this is essentially drop in and has all the pieces required for fuel injection. swapping a new base engine for your existing long block...
  6. Scott06

    Repowering 97 crownline. Best options?

    Maybe the oil was never changed by previous owner . Simplest way is to order a long block either new or reman from a place like michigan motorz and have your mechanic swap all the externals Over.
  7. Scott06

    Fuel burn with 5.7 LX mercruiser, 24' Boat

    4600 is ok but you dont want to go lower in RPM. If you are hitting 4800-4900 this is perfect. Actually you are better being slightly underproped than over propped. While yes you have to watch the WOT rpm when lightly loaded, you wont risk lugging the engine, and general performance will be...
  8. Scott06

    Fuel burn with 5.7 LX mercruiser, 24' Boat

    bellow trimming wont make much of a difference in that combo. The rpm difference could be more related tot he blade design specifically how much cup it has. you may have had less slip with the old one vs the new one.
  9. Scott06

    5 liter Mercruiser wont Idle

    That is typically what happens when the IAC valve is faulty on an MPI
  10. Scott06

    Mercruiser 4.3 Repower Engine Mount Question

    I wouldnt worry about it the engine isnt going anywhere.
  11. Scott06

    Strange oil pressure

    Have you verified the oil pressure with a mechanical guage? Same with temp
  12. Scott06

    looking for new prop

    it is a starting point for next prop selection. Your tach is off as an rev limiter will kick in at 5200 or so. What your current prop pitch is and your current wot rpm will determine what you do for the next prop. for example if yiu are running a basic three blade like a blackmax - say 19”...
  13. Scott06

    Is it worth it to replace the voltage regulator?

    Its not that hard to do im sure you can find some you tube videos . if i had a spare one id swap it on Vs reworking. If you do tear into it id recommend replacing all wear items in there vs just replacing the one component
  14. Scott06

    Merc Alpha4 no longer available. What to replace it with?

    correct, it has a 5.0 carb that is stock except for a 4 bbl intake and edlebrock 1409 carb
  15. Scott06

    New motor knocking???

    What is the distributor lube point? if you primed with a dril the oil should be coming out all rocker arms. Not sure if any oil gallery plugs being missed during assmbly would do this. I would defintely discuss with whoever supplied the reman before you get too far into it. Agree with others...
  16. Scott06

    New motor knocking???

    Lifter clearance will increase as engine warms up. I would take valve covers off and readjust rockers arm nuts. doesn‘t sound like crank or rod bearings to me . What do the spark plugs look like
  17. Scott06

    No spark plug spark... 170 MC , 1985 Sea Ray

    Check 50 amp circut breaker and 90 a fuse on starter lug all 12 v is feed off the starter lug trace it out from there
  18. Scott06

    Exhaust Elbow Riser ?

    The shift bracket should move up on the riser just fine no need fir a bracket
  19. Scott06

    Exhaust Elbow Riser ?

    Don’t think you are over thinking it given those measurements. My sea ray 200 with a 4.3 had no riser, with a 5.0 used a riser. Id add a riser and some have use exhaust hose to stretch the down elbow in similar cases i wouldn't worry about changing the capacity decal. Factory would use the...
  20. Scott06

    Engine replacement

    Check your manifolds and risers for leaks. They are a common hydrolock cause as well, do not want to transfer them to a new long block. a complete base engine or reman long block is your best bet.
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