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  1. alldodge

    Getting hot at WOT.

    Don't replace temp sensor unless testing indicates it's where the fault is With heads being removed prior, there now might be an issue with a head gasket leak. If head was not checked for flatness, it could have been put back on and now the gasket leaks Can verify a gasket leak with...
  2. alldodge

    Help! Overheating 3.0, not impeller or circulation pump

    Think I figured it out, your talking about the newer single point drain system. It's mentioned in manual 26 While we don't know what year the OP's motor is, I don't think it's that new
  3. alldodge

    Help! Overheating 3.0, not impeller or circulation pump

    You got us all scratching are heads, I thought your first post was talking about items 29 thru 31 in link, but right now I have no clue Lower drive
  4. alldodge

    SB engine died on way out, fuel pump?

    Could use a serial number to verify but pretty sure a 2000 should be a MEFI-3 MPI On top the motor look for small square relays next to the ECM. Next to relays will also be a fuse container, about 1.5 high by 3 inch long and kind of thin. The bottom will have wires coming out and the top of it...
  5. alldodge

    No power to trim or motor

    Normally the trim will have a fuse or breaker. Need a voltmeter and trace power from Battery thru motor
  6. alldodge

    No power to trim or motor

    Battery cables look good but remove them and look closely under the jacket if you can. Do both Pos and Neg cables. Look close at the ground connection
  7. alldodge

    SB engine died on way out, fuel pump?

    When key is turned ON before start do you get 2 beeps and hear the fuel pump run? With it just dying, might check the ignition fuse/breaker.
  8. alldodge

    Help! Overheating 3.0, not impeller or circulation pump

    How do you know there is no flow? and no flow meaning it's going to the Stat but not leaving the Stat
  9. alldodge

    MerCruiser 5.0 (Carb Engine) will not turn, what is this part?

    Not next to but on starter post. Search merc 90 a.p fuse a Pic should show up Yes pics not working
  10. alldodge

    Guardian mode with no audio alarms

    That won't work in your case. The paper clip method only works on MEFI ECMs
  11. alldodge

    Steering problems: boat won’t turn left (port)

    Welcome We will need more info about the motor and drive to help. The FB page shows many with I/O's.
  12. alldodge

    MerCruiser 5.0 (Carb Engine) will not turn, what is this part?

    Don't use a wrench on the crank bolt, it can be snapped off doing it. Turn motor over using the pulley and or belts Assuming this is a stern drive I/O, the port side rear of a 5.0 is where the oil pressure sensor and oil filter remote is attached. It motor is EFI then there can also be a fuel...
  13. alldodge

    Help! Overheating 3.0, not impeller or circulation pump

    Remove the elbow to exhaust pipe boot. Look down inside to see if exhaust shutters broke up and are blocking the exit
  14. alldodge

    Help! Overheating 3.0, not impeller or circulation pump

    Welcome No water flow is the pump housing, impeller or connection from pump to thermostat housing. You say not the impeller, why? If you just replaced it, there could be a problem with the install. Get a short piece of clear hose, hose clamps and barbed fitting from the hardware store. Place...
  15. alldodge

    Electronic Ignition part number and Non-Resistance spark plugs

    My bad, forgot to end with contact Petronix and ask them, they are on the web Don't know of non-resistor plugs
  16. alldodge

    Guardian mode with no audio alarms

    Welcome and thanks for the serial number. Your serial number shows you have Cats To find out what's wrong most likely you will need either Techmate Pro or Diacom software from Rinda TechMate Pro (94070m) Diacom 94030g Kit RINDA The new motors need a scanner to find out what the issues are
  17. alldodge

    350 Mag MPI Thermostat Replacement ?

    Nothing wrong with off brand
  18. alldodge

    Mystery bilge find

    If the hard plastic tubing is a yellowish color that would be Tygon tubing. It's used for fuel pump over flow to breather/ air intake, or can be used for reservoir over flow with closed cooling system Yes, pics still not working
  19. alldodge

    Electronic Ignition part number and Non-Resistance spark plugs

    Welcome Folks have had a lot of problems from Pertronix so I would not recommend them for marine applications. I would suggest Delco EST Kit Delco EST You don't need non-resistor plugs, you won't get any benefit from them other then the coil drawing more current and burn out sooner
  20. alldodge

    2004 3.0 Exhaust flapper question

    Thanks, first digit is a zero 0W016713 It comes up as 60930 item 6 https://www.mercruiserparts.com/bam/subassembly/30905/4893/270
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