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  1. alldodge

    1996 Volvo penta 4.3 not getting power to fuel pump

    Being a carb then FP is powered thru ALT when running and Yel/Red when cranking. Both of the wires have a diode inline so one circuit does not back feed the other. Might just be the diode. Use a meter to check resistance on the diode scale if it has one. Put leads on each side of diode and...
  2. alldodge

    AQ131A I'm at a loss

    Had to look this thing up Does the LED turn ON when key is turned ON? Does the light blink when motor is cranking?
  3. alldodge

    1987 4.3l 205 high oil pressure

    Is there anything in the filter location like in my pic? Is it plugged like mine or something else there?
  4. alldodge

    No power to fuel pump or choke 5.0 gl pefs

    Once the carb is filled it should keep running even without the pump running, so we have 2 possible problems. All of the early GL's used Yel/Red from the key to energize the start assit relay and the FP relay thru a diode. Once running power comes from the Alternator Green wire thru another...
  5. alldodge

    1999 mercrusier EFI 5.7 fuel pump not powering on

    The serial number comes back as a 7.4 L29 Using the same prefix 0L086 I'm close enough to comment. The alarm is controlled by the ECM so just turning the key ON will not keep it sounding off. The ECM is what will turn the alarm ON if there is an issue I think you have the MEFI-1 Code 14 is...
  6. alldodge

    1987 4.3l 205 high oil pressure

    ok, but the my pic is the block where either the oil filter is attached or remote is attached. Look in the area and you should not see a plug, you should see something with a ball in the center. That is the relief valve location
  7. alldodge

    1987 4.3l 205 high oil pressure

    Depends on the motor but in the +.002 area more Also with a HV pump the heat is increased so will need a larger oil cooler. A cruise I'm hitting 240 to 250 and lake water is 85*. Have a 3 inch x 18 inch cooler
  8. alldodge

    1987 4.3l 205 high oil pressure

    The HV pump is what's causing the pressure increase, and from the sounds of it they blocked off the return. Mine has a HV pump but the bearings clearances were adjusted accordingly. Cold idle 70 psi, warm idle 60 psi, above 2500 cold 85 and warm 70 and running straight 40W Check the remote...
  9. alldodge

    No power to fuel pump or choke 5.0 gl pefs

    Is your kill switch (man overboard) ON
  10. alldodge

    Mercruiser 5.7 Running Issues

    Either the kill switch (man overboard) or the key switch Check for 12V on the purple wire with key ON
  11. alldodge

    seriously need some experts help on this one, no water exits manifolds

    There is no upper hoses but has a Tee with check balls?
  12. alldodge

    Mercrusier 350 MAG MPI - RPM issue under a load

    Starting fluid (Ether) has a lower flash point then propane. I don't even light using it to start a motor. I wouldn't use either for what you want to try, but would try propane before Ether Would like to use something like Diacom software and get a recording of what's going on. Unplugging a...
  13. alldodge

    seriously need some experts help on this one, no water exits manifolds

    Saying check balls I'm assuming this is you system. Do you have just exhaust mans and elbows, or is there also risers?
  14. alldodge

    Mercrusier 350 MAG MPI - RPM issue under a load

    I would stay clear of starting fluid, maybe propane If it wasn't so hard it would be nice to see it on a dyno. Its either not making enough HP or I'm back to weight, drive ratio, prop pitch and you've said those haven't changed
  15. alldodge

    1996 Volvo penta 4.3 not getting power to fuel pump

    Are you carb or fuel injected?
  16. alldodge

    Horn Constantly Blows When Battery Switch Is Turned On?

    Kind of boat means nothing, What motor?
  17. alldodge

    seriously need some experts help on this one, no water exits manifolds

    Thank you You can have anything from 3 to 7 point drain, closed and open cooling and may also have Axius
  18. alldodge

    A lot of water in the oil!

    4.3 sat for 2 years and found water in oil If it didn't rust up everything inside your golden, but most likely the motor is toast. Change the oil and fire it up if it will. Run it a while then, check for water and if good change the oil again.
  19. alldodge

    1996 Volvo penta 4.3 not getting power to fuel pump

    I don't have a 4.3 GS wiring diagram but do have it for the GL and the 5.0 GI and GS. Neither show a Red/Yel wire feeding fuel pump but no biggy. They all show the ECM applies a ground to the FP relay to turn the pump ON. Only the GL uses the ALT to keep power on the FP, but all EFI motors...
  20. alldodge

    seriously need some experts help on this one, no water exits manifolds

    Serial number
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