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  1. W

    Mercruiser 350 carb

    Good morning all, I need some help, I have a mercruiser 350 2 barrel carb engine. I attempted to rebuild the carb because it was dumping fuel at idle. The boat ran really rough, before I when I initially found the fuel dumping. Fast forward, now the boat has a tough time starting and is...
  2. W

    what ignition system

    Does anyone have any recommendations on where to buy a Delco EST if my module is bad? I am not sure if this violates rule 8? I am just looking for a reputable source.
  3. W

    what ignition system

    OK everyone, I am still trying to figure out this spark issue. per procedure about mid way down it states to disconnect the coil wire from top of the dizzy and connect a spark gap tester. then disconnect the white green wire from the dizzy and tap on ground. Look for spark at gap tester. I...
  4. W

    what ignition system

    Thanks for the info and opinions all! Everyone is always a help on here, very grateful for the assistance.
  5. W

    what ignition system

    Can someone help me with what ignition system I have based on my serial number, OF765981? Part 2, is the Delco EST a good alternative? I am pretty sure my module is bad.
  6. W

    Timing check 350 5.7l Carb

    Without getting to far in the weeds my carb was dumping fuel and very poorly running. I rebuilt the carb and when I was reinstalling it had my hand on the dizzy. when I went to get up the dizzy rotated some. I moved back approximately how much it turned but not exact. The clamp was not very...
  7. W

    Timing check 350 5.7l Carb

    You answered my next question, so there are versions without the knock sensor?
  8. W

    Timing check 350 5.7l Carb

    Scott, Thank you for the information! At first glance this should be very useful, the next chance I can get to look at it... Youth Baseball Season...
  9. W

    Timing check 350 5.7l Carb

    I will check the serial number and get back with you. Now I am not sure because I have the shorting purple and white with a bullet fitting on the starboard side of my engine between the carb and manifold. This is one if the locations of a few that I read where this can be located. I assumed that...
  10. W

    Timing check 350 5.7l Carb

    I am not currently at home to check serial number but I believe it is a T-bolt IV. The ECM is mounted to the dizzy and it only has one plug, and I do not have knock sensors.
  11. W

    Timing check 350 5.7l Carb

    I saw a thread that made me confused and I am hoping to get some clarity. I was under the assumption that when checking the timing you were to ground the purple and white wire to get the ignition into base timing. The thread that I was reading said that you jump it to positive 12 volts? Is this...
  12. W

    Should I pull heads for inspection, 5.7 liter

    After rebuild of the carb there is no longer fuel dumping in the venturis, I will post pics of the plugs this weekend. they are wet foulded with gas.
  13. W

    Should I pull heads for inspection, 5.7 liter

    I know its been a while since I posted this but I was Busy with work tdy. I am getting gas fouling. they definitely smell of gas and are wet. I am going to try and do a leak down this weekend. with the hose from my compression tester. Do you have any suggestions of finding TDC on the other...
  14. W

    Should I pull heads for inspection, 5.7 liter

    Ok so here is the story, motor runs rough, keeps fouling plugs. Wet and greasy looking. Rebuilt carb cause it needed it, dumping fuel at idle. Runs better now with clean plugs but will quickly foul plugs and then runs very poorly. I did a compression check on it and all cylinders are at 140 +/-...
  15. W

    Merccarb 2 barrel rebuild

    I have a 2 barrel merc carb serial number 807312, I am going to attempt my first rebuild of it due to some issues I have been having. Not to mention I have owned the boat for 16 years and it has never been done. Anyways my question is, I am waiting on my rebuild kit to include a brass float. Can...
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