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  1. alldodge

    Mercruiser Alternator Issues and Wiring

    The Black is a ground, and I would install it under one of the nuts holding the slave relay in place. It may have been removed before and not reinstalled. Could have also been at another location, but it needs to be grounded to the block. With a bad ground it can cause the ALT to over charge...
  2. alldodge

    Volvo-Penta 3.0 - water in oil and other issues.

    With compression numbers above 150 I would say the cylinders has some water or other liquid in them, either that or the gauge is off Unable to tell from block codes, not able to find a listing What year is the boat?
  3. alldodge

    2004 Mercruiser 5.0 MPI Starting/Stalling Issues

    The 800 to 1200 would have me looking at the IAC and TPS. Noted you just replaced IAC and did you clean or replace the IAC muffler (foam rubber piece in TB)? At idle the TPS voltage should read about 0.5V Most likely your going to need to get some readings to determine what's going on...
  4. alldodge

    Trim not work above 3000rpm (377Mag MPI DTS Axius)

    Would be a question for @muc or @Fun Times
  5. alldodge

    2004 Mercruiser 5.0 MPI Starting/Stalling Issues

    Check fuel pressure - 43 psi at 1800 rpm Is idle at 600 rpm?
  6. alldodge

    will not engage forward with engine running on baffles

    Don't see the need to drop the lower again. Appears the shift foot is in place. Can look at it and see if its in place. With it clicking means it almost is engaging. Try readjusting cable and if that doesn't fix then it needs the lower cable. Most likely would be best to replace anyway
  7. alldodge

    Mercury 3.0 EST no spark

    MM is a good company but Sierra is hit and miss IMO. That said if you get a bad one others have said they will replace I would look at the local GM dealer
  8. alldodge

    will not engage forward with engine running on baffles

    Unable to say without actually touching but most likely it needs adjusting. If cable is old it may need replaced. Does it go into reverse running?
  9. alldodge

    omc stringer 400 ignition switch fuse getting hot. (battery Pole)

    I would suggest getting a different type of fuse holder
  10. alldodge

    will not engage forward with engine running on baffles

    Ok then it didn't matter if you were in forward or not. When reinstalling the shift foot needed to be in same position as when removed. If it was in forward then foot needed to be turned ccw to lock position when reinstall
  11. alldodge

    will not engage forward with engine running on baffles

    That is a which way did he go statement I asked did you pull the "entire" drive And you just lowered the lower end. It doesn't work
  12. alldodge

    Mercury 3.0 EST no spark

    With change no change in advance the module isn't working
  13. alldodge

    3 prong oil pressure switch elec. fuel pump wiring

    Yes, with power to motor,, once oil pressure builds the pump should run
  14. alldodge

    omc stringer 400 ignition switch fuse getting hot. (battery Pole)

    Hard to say that one color wire would go to a different location. The wiring looks like its not factory so unknown if it was done correctly or not. If it works right then it was probably done correctly for the most part Heat from wiring most always comes from a bad connection. A bad...
  15. alldodge

    will not engage forward with engine running on baffles

    Your saying, the drive was not pulled, just the lower unit dropped?
  16. alldodge

    Mercury 3.0 EST no spark

    Yes, The plug with the 2 white wires and the one black that goes to shift switch. The one used to set timing
  17. alldodge

    Mercury 3.0 EST no spark

    Check advance with shift switch plug disconnected from dizzy
  18. alldodge

    Volvo-Penta 3.0 - water in oil and other issues.

    Which VP 3.0 is it? Got a serial number? So far as the motor workings its a GM industrial motor. Can use a Mercruiser motor manual for same year Yes to all your questions above. Check for water in cylinders now, don't want it to rust up. Most likely it blew a head gasket from overheating
  19. alldodge

    will not engage forward with engine running on baffles

    No Yes Most likely your problem is things where not aligned correctly or shift foot got bent. Did you pull the drive and then separate the lower to replace the impeller? If you did pull the drive did you move the throttle to full forward before pulling?
  20. alldodge

    1990 4.3 no spark, Please help

    Your serial number comes up 1989 which is not unusual With the safety switch having 2 purple wires on it means the switch is bypassed and will not work. The wires should be on pins which will disconnect power to coil when pulled. Jumping it to get power to the coil is not an issue 12V on...
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