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  1. Bt Doctur

    Starting Issue - Twin 1988 Merc 4.3's

    How many batteries do you have ? Some are wired with the motors connected together
  2. Bt Doctur

    351W Aft Motor Mounts

    I agree, in a normal install where they are not glued in place they will spin, If failed the drive would be difficult to slideoff
  3. Bt Doctur

    2006 Mercruiser 4.3 no power to Fuel Pump

    take a paperclip and insert it into the plug, with key on, pump should run
  4. Bt Doctur

    2006 Mercruiser 4.3 no power to Fuel Pump

  5. Bt Doctur

    2006 Mercruiser 4.3 no power to Fuel Pump

    Just spoke with Mechanic who said that the Fuel Pump should run Automatically when the key is turned to start position. But have never heard it running before. He thought the Fuel Pump power comes from a Get another mechanic, elec pumps need a pressure switch to activate the fuel pump. Will...
  6. Bt Doctur

    Flywheel not engaging?? Mercruiser

    A well known fact that trying that could result in a sheared nose bolt requiring complete disassembly to repair the crankshaft. From the video it sounds like the stater motor is good and also the bendix is kicking out to the ring gear. So, if it is water ingested the bendix gear is bad or the...
  7. Bt Doctur

    Gimbal bearing/bellows?

    https://www.manualslib.com/manual/797538/Mercury-Alpha.html?page=10
  8. Bt Doctur

    Volvo Penta AQ131A & 275 OutDrive

    https://www.manualslib.com/products/Volvo-Penta-Aq131-3967740.html
  9. Bt Doctur

    gen1 upper gears for ratio same as gen2?

    due to the seal design and upper case design GEN II gears will not work in a Alpha1 case
  10. Bt Doctur

    Gimbal bearing/bellows?

    I seriously doubt your transom being 2 1/4 thick does have some wood in it
  11. Bt Doctur

    Overheating at 30mph

    Have you checked the flush port making sure the cap is tight? You could be sucking in air
  12. Bt Doctur

    Alpha One Gen Two Thrust Hub Removal

    what are you calling the thrust hub? Bearing #15 is pressed onto the gear and usually comes out with the carrier
  13. Bt Doctur

    Alpha One Gen Two Thrust Hub Removal

  14. Bt Doctur

    Alpha One Gen Two Thrust Hub Removal

    Try spraying with a penetrating oil and try rocking it side to side?
  15. Bt Doctur

    Alpha One Gen Two Thrust Hub Removal

    not a thrust hub, its actually part of the reverse gear
  16. Bt Doctur

    Mercruiser alpha one gen 1 buzzer system

    low outdrive oil if equipped with the res bottle
  17. Bt Doctur

    Dual Battery ... Wiring fail or I just don't understand?

  18. Bt Doctur

    Volvo SX-M Trim Tilt Control Unit Problem

    If it works hardwired when you test it, then just rewire it to mercruiser and have the switch direct to the solenoids
  19. Bt Doctur

    MerCruiser Alpha One Gen II - shifting neutral

    Verify the interrupt is working by pushing the arm and see if the engine stumbles
  20. Bt Doctur

    Original sterndrive ratio for the Glastron/Carlson CV-27

    Now we have 23" prop, which permits 5000rpms(and more) I am curious, if we put 25" prop - rpms should be reduced by 300 - 400, and we will be near to If your past the rated rpm with that setup you may have the wrong gear ratio
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