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Type: Posts; User: Bt Doctur

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  1. Re: MC-1 single solenoid trim motor... how to troubleshoot?

    click to enlarge

    https://i.ibb.co/ZXN3SrN/Untitledtri.jpg
  2. Re: MC-1 single solenoid trim motor... how to troubleshoot?

    you have an old MC1 type, the limit switch is at the very top of the steering ring/yoke, the gimbal housing activates it . Those may be the reverse lockout switch.
    The limit switch may be bypassed...
  3. Thread: No spark

    by Bt Doctur
    Replies
    9
    Views
    85

    Re: No spark

    without the yellow/red connected the motor wont turn over. Without the purple`s connected there is no power to the coil
  4. Thread: Timing

    by Bt Doctur
    Replies
    2
    Views
    115

    Re: Timing

    post the engine serial number
  5. Replies
    17
    Views
    149

    Re: Mercruiser 7,4l wiring issues

    This a TB IV
    click to enlarge
    http://i251.photobucket.com/albums/gg296/TyreeTeam/ThunderboltIVwiring.jpg
  6. Replies
    2
    Views
    40

    Re: Mercruiser 3.7L 190

    Some have been experimenting with the regulator from the larger Harley-Davidson motors
    some are rated above 30 amps output
    I use this guy, ships fast, everything included...
  7. Re: 1978 OMC 240 HP Ford 5.7 liter-can I replace OMC outdrive with Mercruiser?

    SEI makes a conversion unit
  8. Re: 5.7l EFI Mercruiser cranks but won’t start

    For the safety switch, I have this question. When i have the switch to "run" there is fuel spitting into the carb, but when it's in the "off" position, there is no fuel spitting in. So my thought...
  9. Replies
    9
    Views
    76

    Re: Mercruiser 165 4cyl Parts Help

    https://www.jalopyjournal.com/forum/threads/big-inch-four-mercruiser-470-485.289260/
  10. Replies
    9
    Views
    76

    Re: Mercruiser 165 4cyl Parts Help

    https://www.enginelabs.com/news/homegrown-horsepower-four-cylinder-mercruiser-in-a-dragster/

    400+ Hp
  11. Replies
    9
    Views
    76

    Re: Mercruiser 165 4cyl Parts Help

    The 3.7 165 inline 4 cylinder aluminum block was a bastard creation of Mercruiser
    No parentage to GM
    Cap is GM inline 4 cylinder
    Head is Ford 460 truck, valve cover gasket also
    flywheel is a...
  12. Re: Milky oil SHOOTING out of valve covers!!!

    see post 13
  13. Replies
    9
    Views
    95

    Re: 7.4 lost power no start

    Does anythinh happen when you turn the key? Does anything work?
  14. Re: 470 smokes alternator belt and kills engine

    you close to NJ?
  15. Re: 470 smokes alternator belt and kills engine

    only other thing I can think of is that the alt has some type of internal wiring fault.Once it has battery voltage on the output post its like fighting itself. But you said it did work with a remote...
  16. Re: 470 smokes alternator belt and kills engine

    I think your meter may be giving you a false reading, even at a 40 A load a belt should not slip
  17. Replies
    9
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    87

    Re: 3.0L timing adjustment

    click to enlarge
    https://i.ibb.co/F4WQ1z6/Untitledad.jpg
  18. Replies
    9
    Views
    87

    Re: 3.0L timing adjustment

    Then you dont have electronic ign or the shift interrupt is wired wrong.
    activate the shift interrupter, if it kills the engine your wired for points
    The purple in the harness supplies 12v to the...
  19. Re: 470 smokes alternator belt and kills engine

    highly doubtful any electronic unit can pull down a 100 amp alt and timing is usually not changed by changing a voltage source. Double check the alt output again . Voltage should not be more than...
  20. Re: 470 smokes alternator belt and kills engine

    NSTALLATIONTo install a 1-wire alternator, disconnect the positive battery cable, unbolt and remove the original alternator, install the new Tuff Stuff 1-wire alternator and re-tension the drive...
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