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  1. Bt Doctur

    1983 Four Winns mercruiser 488 3.7L overheating HELP

    Q, thats attached to the cam ans made of aluminum , Something in the used drive or a bad head gasket
  2. Bt Doctur

    starter lockout with rams full out

    Exactly how did the gear fail ,broken pieces or melted flat
  3. Bt Doctur

    Lower Shift Cable Adjustment - Am I doing it right?

    Locked in F and R , sounds ok
  4. Bt Doctur

    Couple questions about winterization..

    not exactly, if carb`d just spray fogging in thru the carb, EFI and MPI should run the mix . Aside from the rings it protects the valves with a coating of preservitive And you also have to drain the block if rwc and the raw water side of the heat exchanger if fwc and maybe the elbows. If you...
  5. Bt Doctur

    Bad coupler, warped splines? Alpha one gen 1

    usually it still not aligned correctly. Does the tool go in fully and bottom out?
  6. Bt Doctur

    Shift Interrupt Switch Connection

    you might have to wire the 2 wire in series with the coil power wire instead of a ground type
  7. Bt Doctur

    Alternator output

    55 amp give or take
  8. Bt Doctur

    Info on Mercruiser 0A494867 170Hp engine.

    back in the day when you could still download then and save them
  9. Bt Doctur

    Info on Mercruiser 0A494867 170Hp engine.

    produces a square wave dc to mimic the ac sine wave the 4,3 on average is 175-200 hp , You will have to make new front motor mounts and/or stringers. Wiring should be plug and play at the harness side. Drive gear ratio should stay the same.
  10. Bt Doctur

    2000 Sea Ray 5.7EFI alpha 1 gen2

    The very early service books state that unless the bearing has spun in its bore you flip it sideways in the slots for replacement. What the manual did not tell you is be careful because the grease hole in the bearing can be reversed and you cannot grease the bearing, this led to a lot of bearing...
  11. Bt Doctur

    Info on Mercruiser 0A494867 170Hp engine.

  12. Bt Doctur

    Info on Mercruiser 0A494867 170Hp engine.

  13. Bt Doctur

    Info on Mercruiser 0A494867 170Hp engine.

    you people need to read up on stator charging systems. The stator generates AC voltage and the rectifierchanges that to DC voltage
  14. Bt Doctur

    7.4 L29 idler/tensioner grenaded, issues?

    had one explode on my ford truck and 2 in customers boats A freak occurance but you still have to watch the gauges WHILE SOMEONE ELSE WATCHES THE TOWED PEOPLE .
  15. Bt Doctur

    3.0 liter 4 cylinder engine does not turn over

    Exactly how was it winterized? pull the sparkplugs, stick a thin clear hose in the plug holes and gently suck. Does water show up? If Yes, cracked block and or manifold. You say oil level is full, are you sure not overfilled?
  16. Bt Doctur

    Can't get over 3000 RPM

    replace the sparkplugs and wires
  17. Bt Doctur

    Prop Shaft Spins But Propeller Does Not

    If you have the rubber hub ,its doubtful you can spin the prop. If you have the Flo-Torq hub that is plastic you would see if it was broken apart with the prop removed?
  18. Bt Doctur

    Grounding issue no spark

    With the paper between the points and 12v to the + side of the coil, jump the points contacts quickly off and on , you must get a spark. Remove the paper, crank the engine ,you must get a spark. Spark in the 1st test and no spark in the second test indicates the points are not making contact...
  19. Bt Doctur

    Penta 4.3 no voltage to FP relay

  20. Bt Doctur

    Penta 4.3 no voltage to FP relay

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