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  1. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    Hi All, the mechanic took another look, this time ON THE WATER and said it had something to do with the module and distributor timing mode stuck off. He said he then just set the timing to 3000 RPMs because it wouldn't go into timing mode. I took it out today and it did run well. Anything I...
  2. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    thank you. It appears correct then. I am going to try the compression test next....what a pain this has been. I want to have my ducks in a row so I can go back to the mechanic who started this in the first place...
  3. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    I replaced the fuel pump and no change. I also checked the firing order and based on your diagram, it looks like the prop is on the left side of the diagram...is that right? If that is the case, then the firing order is completely wrong. However, if the prop is on the right side, it looks...
  4. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    Alldodge, I am going to do what you suggested today or tomorrow. One other thing, they replaced the plugs and wires last year. Should they have checked the plug firing distance beforehand or does that not matter much? Also, you mentioned full throttle...so open up the throttle all the way...
  5. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    Hugh G, I asked them that (was the piston and cylinder ok after) and they said yes.
  6. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    It was not overheating ...I never saw the gauge show that before the gasket replacement. There was clicking noises which prompted the head gasket change
  7. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    Yes it was completely fine before the head gasket was replaced. Ever since it's been acting like this. Actually, after the head gasket the top end was bogged and the low end was fine. Then they found "something" in the cylinder and redid the head gasket while cleaning the object. After that...
  8. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    Thanks for your response....the serial number = 0m085518. Do you think I should press about the flatness and valve job? I will check the order...based on the video, what is your gut?
  9. M

    Inconsistent bogging/acceleration until it hit around 20mph - Mercruiser 5.7l

    Hi, I have a video below but here is some history. Head gasket was replaced last winter. Put it in the water and it was fine prior to planing but then it was about 50% power at full throttle. Brought it in and they said that something got stuck in one of the cylinders. The cleared/cleaned it...
  10. M

    Mercruiser 5.7L Engine Knock - when accelerating - incident likely caused this

    To close this out...sorry It took so long...was the head gasket that needed to be replaced
  11. M

    Mercruiser 5.7L Engine Knock - when accelerating - incident likely caused this

    Hello, I have a 2002 Chapparal deckboat with a Mercruiser 5.7L engine. I have had it for 4 years and keep it very well maintained. It has been completely fine (and actually great!) up until now. The ticking happens once I get the RPMs up over 2k. There is NO ticking when it's idle or if I rev it...
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