Logo

Search:

Type: Posts; User: Dieter

Page 1 of 4 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    20
    Views
    2,574

    Re: Thunderbolt IV timing issue

    This is the troubleshooting flow chart for both TB iV & V

    https://bpi.ebasicpower.com/faq/MERCSB92-11.htm
  2. Replies
    93
    Views
    1,184

    Re: safe compression ratio sbc

    Take this for what its worth as I haven't done a SBC stroker. Most of my engine rebuild epxerince is on 65 GTO's ...and I would just stay with of the shelf full dish pistons to keep it simple...
    ...
  3. Replies
    93
    Views
    1,184

    Re: safe compression ratio sbc

    If you look at other similar posts Rick had a habit of arguing with everyone , especially this long tirade on piston profile we have all seen a hundred times...Jim who runs this site and marine...
  4. Replies
    3
    Views
    97

    Re: New boat winterize?

    Drain the raw water between uses. Should be in the mercruiser docs that come with the boat or look online

    Does it have closed cooling ?
  5. Replies
    8
    Views
    152

    Re: Trim system fluid change

    yes the oil does get pushed out to the cylinders and back.what I did for the same reason you are looking to change it, was suck the reservoir dry with a turkey baster, refill, run the drive up and...
  6. Replies
    23
    Views
    336

    Re: Upgrade bigger motor

    and the correct information is the OP can swap his engine to a 4.3 and go up in pitch on his existing drive and this will work very well for him. Any of the other horse $hit you have written like the...
  7. Replies
    23
    Views
    336

    Re: Upgrade bigger motor

    rick why don’t you contact mercruiser since you seem to have sooooooo much time on your hands

    stop obfuscating the OPs original question with long winded off topic posts. We are not talking about...
  8. Replies
    23
    Views
    336

    Re: Upgrade bigger motor

    this is just plain wrong , the experience I lay out in post #3 is evidence of that. I’ve used this boat for 5 seasons and works perfectly in all phases of operation - holeshot, cruise, WOT.

    im...
  9. Replies
    93
    Views
    1,184

    Re: safe compression ratio sbc

    best post in this thread. Started with what is a workable compression ratio? ..... and end up with all this crap. Iím just glad we didnít get the model T ignition system drawings again.

    itís not...
  10. Replies
    23
    Views
    336

    Re: Upgrade bigger motor

    I suspect you will need to go up 2” in prop pitch, assuming your current prop gets the 3.0 to 4600-4800 rpm.

    I swapped a 4.3 for a 5.0 on my current boat, kept the 4.3 drive and it’s 1.81 ratio...
  11. Replies
    12
    Views
    281

    Re: Oil for older carbed 350

    What is your oil pressure at hot idle and under way. You want 10 psi per 1000 rpm. If the engine is still tight and make s40 psi at 4000 rpm then 30 wt is ok, if the bearing clearances are looser run...
  12. Replies
    8
    Views
    252

    Re: Slow Engine Cranking

    It fits fairly tight to the shaft
  13. Re: Mercruiser 3.7L - Rattle/Knock over 2000rpm & wont go over 3000rpm - need a guru that knows thes

    Carbon wouldn’t cause that, if valves were stuck he wouldn’t have compression in that cylinder
  14. Re: Mercruiser 3.7L - Rattle/Knock over 2000rpm & wont go over 3000rpm - need a guru that knows thes

    Carbon wouldn’t cause that, if valves were stuck he wouldn’t have compression in that cylinder
  15. Thread: Prop shaft play

    by Dieter
    Replies
    21
    Views
    401

    Re: Prop shaft play

    Back to the OP, every well working, Alpha gen one or two I’ve had had at least 1/8” in and out play in prop shaft. Years back I asked my mechanic too as it doesn’t seem right. Zero side play on the...
  16. Replies
    8
    Views
    252

    Re: Slow Engine Cranking

    Its not a shaft seal, it’s not supposed to touch the housing. The merc impeller kit cones with a fixture to slide the slinger down the drive shaft and correctly position the slinger just above the...
  17. Re: Mercruiser 3.7L - Rattle/Knock over 2000rpm & wont go over 3000rpm - need a guru that knows thes

    That rattling sounds a lot like the one in this video https://youtu.be/HRyOwnhQwgE

    poster claimed head gasket was blown due to overheat and ,raking a small amount of water into combustion...
  18. Re: Mercruiser 3.7L - Rattle/Knock over 2000rpm & wont go over 3000rpm - need a guru that knows thes

    Coolant or water in oil turns it milky , cream colored, and tacky
  19. Replies
    11
    Views
    272

    Re: Starter Issues - 4.3 mercruiser

    This is how staged helps you - chevy used only two types of starters for all its engines . If you need to replace look under there for a straight or staggered bolt pattern order accordingly. Make...
  20. Replies
    26
    Views
    430

    Re: Engine Alignment

    Because you can’t get the alignment in spec. There’s only a couple of things that can go wrong

    rear mounts collapsed evidence is the lack of alignment if front is all the way down like you are...
Results 1 to 20 of 70
Page 1 of 4 1 2 3 4