Search results

  1. M

    Mercruiser 350 poor performance

    Just to update this. It seems that despite the fact I paid the engine shop to set the timing for me, the timing is way off.
  2. M

    Mercruiser 350 poor performance

    This isn't the first one I have replaced. Seems like every time I try and run my boat at home I have to replace the impeller. I bought a whole water pump kit again, don't think I'll even try and start it at home again, I'll just run it at the lake tomorrow.
  3. M

    Mercruiser 350 poor performance

    Okay I will check that. Currently I am dealing with a disintegrated impeller. Water pressure isn't good at my house not sure if that's a factor. First one was jammed up and the belt wouldn't rotate. Had been meaning to replace the belt anyways so got a new one and still nothing. Pulled the water...
  4. M

    Mercruiser 350 poor performance

    Fuel pressure when running at idle didn't change from the previous picture. Until I disconnected the line then it went up just over 30.
  5. M

    Mercruiser 350 poor performance

    I was not able to see any markings on this. Access isn't very good in that area
  6. M

    Mercruiser 350 poor performance

    From pictures I have seen I think it's a gen 2 cool fuel unit. But will confirm that later on today when I am back at the boat.
  7. M

    Mercruiser 350 poor performance

    The picture
  8. M

    Mercruiser 350 poor performance

    Fuel pressure this was key on engine off, with the vacuum line still connected. It would spike higher when I first hit the key then settle back to this point.
  9. M

    Mercruiser 350 poor performance

    Okay so here is the computer that's in the boat.
  10. M

    Mercruiser 350 poor performance

    Given it had only been on the boat a couple of weeks and maybe an hour run time, I did reuse the fuel filter yes.
  11. M

    Mercruiser 350 poor performance

    Hmm okay. It's one of the only things I can think of that's actually different from before the swap. It'll be a few hours before I am able to update with what ecm it has.
  12. M

    Mercruiser 350 poor performance

    It doesn't have a tee fitting it just went straight to the fuel unit. It was never connected the entire time I had it, so is that 2 to 3 psi enough to cause issues?
  13. M

    Mercruiser 350 poor performance

    Okay I will update when I have a look at one. If it helps it will rev up in neutral easily enough. Also not sure if this matters or not. There had been a small rubber vent line coming out of the bottom of the throttle body that didn't seem to go to anything, when I put the motor back in it...
  14. M

    Mercruiser 350 poor performance

    I seem to recall seeing about 25 psi on the rail with the key switched on but engine off. I never thought to look while I was under way but next time out I will check it. A previous owner has installed a fuel pressure gauge on the rail somewhere along the way. Next time out I will have someone...
  15. M

    Mercruiser 350 poor performance

    It's multi port
  16. M

    Mercruiser 350 poor performance

    I never had it unfortunately. I can say that it has what I believe is the thunderbolt 5 ignition and the MEFI 3 or 4 fuel injection if that helps.
  17. M

    Mercruiser 350 poor performance

    Okay so the boat is a 2002 Calabria Pro V with a fuel injected mercruiser 383 in it. Present issue is very poor performance. From a stand still I can't get full throttle on it. It seems to perform better if I roll into the throttle slow and only up to maybe 3/4 throttle. It still hits a wall at...
  18. M

    restoring faded gelcoat

    Re: restoring faded gelcoat So you think this is basically just a gimmick product? What would be recommended to bring some shine back to my seadoo? I attached a picture of what I'm working with.
  19. M

    restoring faded gelcoat

    I have a 95 Seadoo with some faded gelcoat that I would like to restore. I've done some researching and I get opinions and how to's that are all over the place with what to do. I came across this product which looks good if it works, it's called Shine On B.C. I'm wondering if anybody has used...
  20. M

    1976 Mercury Thunderbolt 150

    I have a 76 Mercury 150, it currently has 0 compression in the #3 cylinder and 30 in another. Last time out it dropped a cylinder and started running terrible. I figure it needs a rebuild but i don't know if this motor is worth it. If it is even worth rebuilding, or if it is even rebuildable...
Top