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  1. Bt Doctur

    Bravo 3 gear oil leak

    Gear Lube Reservoir Fitting Assy 90Deg, Mercury - Mercruiser 22-861150T02
  2. Bt Doctur

    Bravo 3 gear oil leak

    a universal vac hose connector but your issue is in replacing that hose without breaking of the end in the transom. Replacement is difficult but not impossable.Attach a razor blade to a dowel and slit the hose to remove it from the transom. Using a 3/16 or 1/4 inch rod 14 inches long with a...
  3. Bt Doctur

    difference between boat motor and car motor gm 350

    I think after 15 years he got it figured out. post your own problem not someone else`s
  4. Bt Doctur

    alpha 1 gen 1 shift interupt switch

    just remember that switch applies a ground to the ign system that may blow the ign fuse. If that happens you need to wire the coils + lead thru the switch and the other switch wire to switched 12V
  5. Bt Doctur

    No Water Draining From Port Exhaust Manifold

    remove the hose at the therm housing , add water, verify it runs out the drain plug
  6. Bt Doctur

    Need Help Installing Distributor in 4.3MPI

  7. Bt Doctur

    Test stand running 70's 350 water hook up

    My idea is to connect a garden hose with a Y to both hoses at the back of the exaust manifolds. Will that be too much pressure? Thats where the water comes out not in.Connect a hose to the water INLET connection
  8. Bt Doctur

    Can't mate upper and lower gear housing 1979 Mercruiser 140 3.0L

    only thing would be something inside the upper gear like a O ring?
  9. Bt Doctur

    1994 OMC 5.0 EFI no start

    I warmed up motor to operating temp shut it off and decided to degrease motor before winterizing.Being I sprayed degreaser and water (hose) (not pressure) raising steam, did I create my own problem? YES Totally un-nessary to wash a motor. If you got the computer wet, its probably finished
  10. Bt Doctur

    Need Help Installing Distributor in 4.3MPI

    Yep, to have a dist install correctly you need to "back up" the rotor a bit, align the oil pump shaft to the dist using a long flat blade, slip the dist down until seated and have the rotor at the arrow
  11. Bt Doctur

    4.3l mercruiser sterndrive

    only hose that low is the exaust bellow
  12. Bt Doctur

    NPT or NPS

    I would venture a guess it`s NPT
  13. Bt Doctur

    5.0GL - No Power at Coil

    https://www.manualslib.com/products/Volvo-Penta-5-0-Gl-9226208.html
  14. Bt Doctur

    5.0GL - No Power at Coil

    you wont see any numbers on the balancer, your looking for a line/groove cut in the balancer. That is TDC for #1 piston. Also TDC for #1 on the exaust stroke
  15. Bt Doctur

    etec 150

    Had the opportunity to troubleshoot one of these . After a somewhat short run10 minutes it would go into guardian mode. Fuel filters looked good, block temps good. good flow from the pisser, Not fuel related. Found the ecm clogged shut with a white powdery substance. Could not even blow air thru...
  16. Bt Doctur

    Prop spins easily, but not freely

    some are dog clutch gears that will spin freely, some are cone clutch upper gears that turn with the prop and may have a little bind
  17. Bt Doctur

    1987, 454 Help!

    +2 check the pumps pressure
  18. Bt Doctur

    '84 Lund 3.0L IO engine runs, locks up, runs, locks up

    what about the oil level in the drive?
  19. Bt Doctur

    2004 5.0 MPI Mercruiser

    fuel water/sep filter , clogged tank vent, hi pressure fuel pump going bad, injectors clogged.
  20. Bt Doctur

    Alpha One lower unit assembly

    also lubricate the impeller dish soap, KY liquid, etc because you may have to thru the shaft backwards to line up the driveshaft splines. Once raised install the forward nut by a few threads to hold the unit. install the side nuts next. Rotate upper shift shoe to be in a straight line and slide...
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