Search results

  1. Scott06

    Mercruiser out drive compatibility

    Oh man I confused myself sorry to the OP and others if you are putting a 6 cyl drive on a 4 cyl engine then yes you need less pitch . I thought you had a 6 cyl engine and 4 cyl drive. …I’ll shut up now
  2. Scott06

    Mercruiser out drive compatibility

    Ok that’s what I was getting at , assuming the original prop hit the correct wot rpm you will need a higher pitch prop to account for the higher gear reduction in the 4 cyl drive. as an example I repowered my current boat.it originally had a 4.3 V6 with a 1.81 ratio drive. I upgraded to a 5.0...
  3. Scott06

    Mercruiser out drive compatibility

    snip
  4. Scott06

    Mercruiser out drive compatibility

    I might be getting stupid but I thought he was not switching engines but rather drives - going from a 6 cylinder drive (1.65 or 1.81) to a 4 cyl drive (1.98) so increasing the gear reduction
  5. Scott06

    Can I use this Y pipe

    Would have the welder face the sealing surface on belt sander etc. If there is a local machine shop that can weld aluminum should be no issue but do as you like
  6. Scott06

    Bravo 1 to Bravo 3 Conversion

    yes you can but depending on the drive ratio you may need to reprop. Best bet would be to see if the 2007 was offered with a 5.7 B3 and what ratio and what props it would have come with to get a good starting point. I would suspect a smaller boat with bigger engine would have a lower...
  7. Scott06

    Can I use this Y pipe

    yeah you probably can use it with a washer to make sure it bites, could also fins a local welder to repair it. If it were mine I would weld it up and not screw around with a seal that could sink a boat
  8. Scott06

    Mercruiser out drive compatibility

    If he is going from a 6 cylinder to a 4 cylinder drive doesn't he need to increase pitch?
  9. Scott06

    Mercruiser 888

    Delta Cams and Powell machine company are two guys who regrind cams if needed. With the general trend to rollers and issues with flat tappet cam and lifter failures (due to offshore junk) not a lot of guys doing HFT but I think they could help especially if you have a good core
  10. Scott06

    Mercruiser 888

    First verify the tach is correct vs a shop tach as a sanity check. Dont care if the tach is new, easy to do rev it up in neutral see what shop tach says vs dash tach. IF you have a prop shop that will let you try before you buy that is the best way to go. I would start with a 15 based on what...
  11. Scott06

    Automotive Diagnostic Tool

    I love chit made by Germans for Germans... actually the one I got for like $100 works pretty good. I think part of the issue I had was the code was in the trans or chassis seeing an error in engine temp sensor... yeah very german... car was idling like chit. reset the code runs fine since...
  12. Scott06

    Mercruiser 888

    I know some of the older engines had really low WOT ratings but would think a ford 302 would be happier mid 4000's as well. I think some are available in 13"s like this black max, but you will definitely find less options below 15" pitch...
  13. Scott06

    Acura 3.2L Noise?

    Take the drive belt off and start the car to narrow it down to internal or external. Wonder if it is something with the variable valve timing . I’m a Toyota guy and they have issues with VVTi sprockets that make similar noises. no codes being thrown?
  14. Scott06

    Mercruiser 888

    yes Probably a 15 will do it. Certainly you wont have direct pitch drop to rpm increase if you are bouncing between 3 and 4 blades but you can figure 400 rpm change for every 2” pitch change up or down. as an example as mentioned I bought a boat in need of a repower. Originally had a 4.3 /190...
  15. Scott06

    Mercruiser 888

    Dont have the previous posts memorized might be good to link them. Yeah 1.32:1 is too tall for the set up. the engine is a 888 - 190 hp 302 ford? My current boat is a 21 ft bowrider so a head smaller and bit lighter than what you have. it was originally equipped with a 4.3 vortec 2bbl 190 hp...
  16. Scott06

    Pre engine pull, winterization

    exactly my point...
  17. Scott06

    Mercruiser 888

    verify the tach is accurate first. then yes over propped and or wrong gear ratio. would need to drop at least 4" in pitch if tach is correct. Were you running it previously with a different ratio leg or is the boat new to you. Agree do some checks as mentioned above including check timing and...
  18. Scott06

    Pre engine pull, winterization

    I was having trouble making that out would defer to SD. As long as it is not aluminum from detonation I think you are fine. Be careful- as long as the engine is out Danforth will have some sort of stroker or something over 500 cubes going back in...
  19. Scott06

    Pre engine pull, winterization

    thats what made me think you are still on the rich side not lean. the full circle of color on the base of the threads means it is not lean. Mine get a bit brown on the insulator too. Is there corrosion on there too? Also think you are fine on the compression for what we are doing ...
  20. Scott06

    Pre engine pull, winterization

    by the look of the plugs suspect you are still rich and the o2 sensor may be on its way out. I don't think they like being in wet exhaust long term, even in the dry part of it...
Top