Search results

  1. alldodge

    5.7 gi-c limp mode after compression test

    Clearing codes won't make things run better. If problem is still there it comes back faster then it takes to clear them. If problem goes away then motor will start running correctly even if codes are not cleared Need to find out what the codes are, if any are present? Vibration can be from...
  2. alldodge

    Concerns when Setting Input Drive Rolling Torque after U-Joint Replacement

    That will never seal as-is. If it cleaned real good, then use break cleaner or naphtha to ensure all oil is gone. Apply marine-tex or JB and once it sets up, need a way to sand it down flat. Maybe drimmel tool with sanding disk
  3. alldodge

    Mercruiser MAG MPI 5.0 No start

    Best way to set TDC with the HVS distributor is by building the tool starting on page 15
  4. alldodge

    2003 5.7 350/300HP MPI - Sporadically Tough to Start

    43 is correct, the 35 is minimum needed Lower pressure will cause the motor to not have enough fuel. The injector pulse opens/closes it for a length of time. If pressure is lower then there is less fuel being released each time it opens. When the motor is cold it needs more fuel just like a...
  5. alldodge

    4.3 Mercruiser Fires but will not run

    Run through this troubleshooting guide
  6. alldodge

    4.3 Mercruiser Fires but will not run

    The coil should have 12V any time the key is turned to RUN or START There can be up to 2-purple wires on the + side of the coil and up to 2-gray wires on the - side of the coil I say "up to" because the purple and the gray wires can be spliced internally so only one is there, but may not and...
  7. alldodge

    2003 5.7 350/300HP MPI - Sporadically Tough to Start

    The GM TBI uses this adapter because the first years didn't have a schrader valve
  8. alldodge

    1968 Mercruiser 120 2.5

    Looks like the Blue goes to the rocker switch, but unsure right now if the purple is for a light or not Since it works when jumping the slave, this tells that power is not coming from the key. It could be the key, or the wiring leading to the key or coming from back to the motor. The...
  9. alldodge

    Single beep when RPMs under 2000

    This is kind of a bad start from my view. I'm thinking it either had codes before the thermostat change, or he's guessing. Would be nice to know (better yet see) what codes are seen The TPS and IAC run off of 12V source If voltage is dropping both can throw a code Below is a list of 555 codes...
  10. alldodge

    1968 Mercruiser 120 2.5

    The Blue and purple wires should go To and From the voltage regulator and the Alternator The pic below doesn't show the Blue and purple but the wiring is close enough to use. The Blue is shown going over to the ALT but not the Purple. It does and I can copy a pic of yours later if needed...
  11. alldodge

    Alternator voltage

  12. alldodge

    Running rough when cold, helping to diagnose the problem with Mercarb

    Yes, the idle screw will keep the choke spring (on other side of carb) will be trying to close the plate but the idle screw friction stops it. The Mad prop setup is only for initial settings Your choke plate and the cam rod should move independently from one another. You should always be able...
  13. alldodge

    Running rough when cold, helping to diagnose the problem with Mercarb

    If you can loosen the rear nut and tighten the others then this would work. The issue is most carb studs are not threaded all the way from one side to another. So would just cut the end off the stud on the carb side
  14. alldodge

    Running rough when cold, helping to diagnose the problem with Mercarb

    Your correct the stud is causing an issue. The reason you don't need to move the throttle to set the choke is because the idle screw is not being used. Either the stud is resting against the linkage or the throttle plate will not let it fully close. Need to cut the stud just past flush to let...
  15. alldodge

    2000 Bayliner Capri - 5.0 Mercruiser 5.0 Mercarb - Electrical Issues

    The pump draws no more then 5 amps, it blew a 30 amp, so its bad This is a 4.3 but its the same as yours
  16. alldodge

    2006 Bayliner 180 - trim pump stopped working

    Compare electric flow thru a wire as water thru a hose Corrosion acts as a restriction and can be at the ends of the wire, and in rare occasions can be inside the wire.
  17. alldodge

    Erroneous Temp Sensor Reading

    This is what I have. The original to to large to upload
  18. alldodge

    Older mercury 3.0 suddenly won't start

    Fazt is correct IF the purple is daisy chained at the Tach. In the pic below it does show where its daisy chained at the tach but for me that would be a unnecessary failure point. Most would splice and then run to each gauge
  19. alldodge

    Need help with adjusting shift cable on Mercruiser Alpha 1 drive..

    May help
  20. alldodge

    I hate electrical issues, HELP please!

    Like this
Top