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  1. alldodge

    120 Mercruiser 2.5L - No spark

    Does it start right back up easy?
  2. alldodge

    2011 Mercury 4.3 inboard

    If unable to get to something on a motor that needs replacing, you have to remove things to get to it, or pull the motor. If you have closed cooling it would have AF so would need to drain heat exchanger prior
  3. alldodge

    Mercruiser 3.0 L oil pressure switch Question

    Think you have the TKS carb oil pressure switch and is part of manual 41 Block diagram of how its used
  4. alldodge

    Boat Manual

    Motor manual is number 7 Drive is manual is number 6
  5. alldodge

    Power Trim Help on 3.0 Mercruiser Alpha 1 Gen 2 will go down but not up HELP!

    Depends on the throttle control design. Many Mercs the button looks like part of the panel mount. Look close at the bottom right corner to see if its rubber and not plastic. If its rubber push real hard, that would be the trailer switch If not post pic of your control
  6. alldodge

    Crank but want start Mercruiser 5.7

    The serial number shows TB4 ignition Run thru the troubleshooting guide (the TB4 and TB5 are the same)
  7. alldodge

    120 Mercruiser 2.5L - No spark

    In most cases yes, so long as its not running lean A motor will run great when running lean. The lean condition will damage the motor. It probably is not running lean but you can do a simple check. Run motor at WOT or close to WOT for a few minutes. Slow down and don't idle much at all and...
  8. alldodge

    anodes

    Brass/Bronze its a thru hull Don't see 8 more like 12 http://stevedmarineconsulting.com/wp-content/uploads/2014/03/BondingSystems138_05.pdf
  9. alldodge

    120 Mercruiser 2.5L - No spark

    Check fuel pump pressure Need to get a gauge to read 4-7 psi and place between pump and carb. Its either running out of gas due to a bad/weak pump or drawing a vacuum due to antisiphon valve, would be my guess
  10. alldodge

    anodes

    Inboards use transom zinc, I/O don't because they need them on the drive Yes there should be ground wires on brass thru hulls, and it should also have a galvanic isolator. But being on a lift the isolator will not be used
  11. alldodge

    U-joint seized into gimbal bearing

    I remove the drive and place on a stand at the end of every season. Helps with checking gimbal, boot and joints. Also big help with boots because they are in a relaxed position, they last much longer this way
  12. alldodge

    Intermittent fuel issue and Ventilation

    The vent is either part of the cap or right next to it
  13. alldodge

    Mercruiser 3.0L mercarb 2 barrel Help!!!

    Right now we don't know if there is to much fuel (meaning carb problem most likely), or not enough fuel
  14. alldodge

    Intermittent fuel issue and Ventilation

    Sounds like your drawing a vacuum on the tank. The tank vent line is clogged or the vent it self. Disconnect the vent line from the tank and blow thru it
  15. alldodge

    Mercruiser 3.0L mercarb 2 barrel Help!!!

    When it dies, loosen the clamp on the filter (assuming its under the pump) and see if fuel spills out. If it doesn't, then check antisiphon valve on the fuel tank. Its a barbed fitting that the rubber fuel line is connected to it
  16. alldodge

    Mercruiser 3.0L mercarb 2 barrel Help!!!

    No oil pressure switch with a mechanical fuel pump. This is why we want to know exactly what you have prior to trying to figure things out Do you have a spin on fuel filter or is it part of the pump?
  17. alldodge

    Mercruiser 3.0L mercarb 2 barrel Help!!!

    Mod has moved it to the Mercedes section
  18. alldodge

    Losing power on acceleration

    Which 4.3 is it, serial number is best?
  19. alldodge

    Power Trim Help on 3.0 Mercruiser Alpha 1 Gen 2 will go down but not up HELP!

    Missed your last sentence With it not clicking then check the fuse then the wiring
  20. alldodge

    Mercruiser 3.0L mercarb 2 barrel Help!!!

    Saying it won't turn over, that one issue and look at the neutral safety switch in the throttle handle. I'm wondering if it has an electric fuel pump. If it does one circuit can power the pump while cranking and another keeps it going once started In the pic note the purple/yellow from the...
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