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  1. 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...
  2. 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...
  3. 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?
  4. 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...
  5. 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...
  6. Scott06

    Pre engine pull, winterization

    exactly my point...
  7. 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...
  8. 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...
  9. 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 ...
  10. 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...
  11. Scott06

    1989 Mercruiser 2.5L 120HP motor overheating trouble shooting

    If you ask this question of two people on there you will get three different answers. For me just drain, probe the drains to make sure there is no sediment blocking draining
  12. Scott06

    Mercruiser 4.3L won't start

    Agree looks weak and also seems like it is cranking slow. Wonder if battery is dead or corroded terminals are causing a voltage drop as it doesn't look like it is hitting spark often enough nor strong enough. I would measure volts when cranking at coil willing to bet is is low When I did my...
  13. Scott06

    Coil

    how far out from lightly seated is the mix screw? Normally should be in the 1.5-2.0 turns out range on a mercarb or rochester. when setting you can do it by ear or better yet use a vacuum gauge, turn it lean until it stumbles then go out until it stumbles rich. in between these two spots is...
  14. Scott06

    repowering 2006 Chaparral volvo 5.7 with stroker.

    the issue with reversion is different from riser height. riser height over the water line is one thing. reversion from a hotter cam and valve overlap is another. This can pull water in regardless of riser height. Danforth can walk you through it as you choose a cam. I'm paraphrasing- stock...
  15. Scott06

    Coil

    ok we got it it was the coil no need to post it 4 times... What is seen is typical of the chinesium replacement carbs about half of them work ok. Either the accelerator pump is not working or has a delay in action due to slop in the linkage or you need to take it apart and adjust needle and...
  16. Scott06

    Changing the U-Joint on an OMC Cobra Out Drive, OD

    That looks like a mixture of merc hi performance gear lube and water hence the milkyness. The lube is bluish green by color but the milk is evedince of moisture
  17. Scott06

    Mercruiser 4.3L won't start

    That looks like a stock mercruiser thunderbolt distributor. Are you getting spark if not go through the TB troubleshooting guide in the stickies
  18. Scott06

    Coil

    yeah got that it happens after an hour. maybe maybe not ...you have to look for what's missing (spark or fuel) when it acts up. everything else is conjecture.
  19. Scott06

    Coil

    this - when it quits then see if you are missing spark or fuel. If missing fuel open cap on fuel tank. If spark is no good start looking into points condenser etc if you get no psark off coil. Spark gap tester is really great to have in your tool box for times like this. Might also take a...
  20. Scott06

    going to buy a used mercruiser

    new the engine will have about 150 psi compression pressure so 140-145 on all cylinders indicates the pistons, rings and valves are in good shape. I would ask to see this my self don't just take the sellers word for it. Additionally you want to look at what the oil pressure is normal rule of...
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