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  1. alldodge

    Fuel delivery

    You can check at the pump, which is good enough. Most like the relay because it's easier to get to. If pump does not turn on then need to check at relay Use block or bat ground
  2. alldodge

    350Magmpi

    Suggest give it a rest
  3. alldodge

    350Magmpi

    Fuel pressure should maintain 43 psi give or take no matter what the manifold vacuum is. Dropping below this is an issue Lets start with a engine serial number so we know what your working on. There are a lot of 350 mag MPI's but many of them have different inputs causing different faults/outputs
  4. alldodge

    Fuel delivery

    It would not help to get the factory manual IMO Need to understand electricity to be able to understand the issues with voltages
  5. alldodge

    Fuel delivery

    Key ON, MPR energizes and sends power thru out ECM and to FP relay ECM powers up, hear beep and then applies ground to pin A-19 for couple seconds which powers on FP If you put meter on pin A-19 or pi 86 of FP relay before key is turned ON you will see 0V. Key ON, 12V to relay coil and "may"...
  6. alldodge

    Fuel delivery

    S/N shows a boost pump with 1st Gen cool fuel, 555 ECM and HSV distributor Fuel pressure should be 43 psi at the rail Relay setup, MPR and FP
  7. alldodge

    Marine Air Issues

    Bummer,it's almost never the simple stuff
  8. alldodge

    496 HO Failure

    Your testing prior tells me its not in the head "compression test" all good. The top end is good so only thing left is bottom end and it making a lot of noise. Running the motor will do nothing but make anything that might be salvageable less likely. The more it runs the more something else...
  9. alldodge

    Fuel delivery

    Fuel pumps are energized by the ECM applying a ground to one side of the relay coil. The other side gets 12V from the Main Power Relay (MPR) Which cool fuel do you have (no serial number listed)?
  10. alldodge

    496 HO Failure

    Really, Really
  11. alldodge

    2002 Chaparral 286 SSI

    Don't change the prop unless it's not reaching WOT max RPM. A 3 blade prop is good, going to a 4 blade can help but also hurt performance. Need to know what current prop is doing and not doing before even thinking of changing
  12. alldodge

    Another prop slipping thread

    Use same coupler as removed, splines will be aluminum and should have squared edges not rounded or pointed.
  13. alldodge

    Another prop slipping thread

    Prop hub not spun Drive locks up and doesn't spin Only thing left is the coupler Remove drive and look at the coupler thru gimbal. Look to see if rubber has stripped mostly away from center. If drive doesn't slide off easy it's not aligned The extra hp is ok so long as the boat is light and...
  14. alldodge

    2002 Chaparral 286 SSI

    Welcome Chap is a good looking boat, but if the motor doesn't run it's a POS. Look after the motor and everything else is good
  15. alldodge

    Twin Merc V8 and different fuel usage

    Smart craft via can buss
  16. alldodge

    Twin Merc V8 and different fuel usage

    Don't know but probably not. Something worth looking into
  17. alldodge

    Twin Merc V8 and different fuel usage

    Thanks It probably is normal but the counter (port) burns less then the standard
  18. alldodge

    Twin Merc V8 and different fuel usage

    Motors have Digital controls, speed and RPM stay within a few RPM but the PCM. Both motors use electric power steering. Only thing that is different is port motor has a isolator installed to change house Bat
  19. alldodge

    1994 Regal Commodore 400 How to fix seacock leak thru hull

    Disconnect hose on seacock, remove seacock, then remove the thru hull. The thru hull should be sealed with 3M 5200 so there will some wood that will be damaged on removing it. Once thru hull is out, start removing any wood which is wet/damp. When all the wet wood is removed then it's time for...
  20. alldodge

    1994 Regal Commodore 400 How to replace fresh water tank

    Probably going to be hard to find someone who actually replaced the tank in the same model boat. Look under the AFT cabin bed and see if it can be determined.
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