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  1. Bt Doctur

    Gear oil lower shift shaft

    seal only 18-2006 / 26-89236 complete asembly 23-815921A21 / sie 18-2353
  2. Bt Doctur

    Mercruiser shifterplate

    It will not activate on land on a trailer
  3. Bt Doctur

    Smoke from the Alternator!

    the 90A protects the system wiring in case of alt failure.it did its job. so unless you had the battery cables reversed just replace the alt
  4. Bt Doctur

    Is my coupler off ? looks like it and drive won't go back in ..

    Well ,if you had the drive off for service you should have used some KY when you installed the impeller in the pump housing. Never grease or oil
  5. Bt Doctur

    Mercruiser 165 inline 6 timing marks - reverse rotation engine?

    you do not have reverse rotation
  6. Bt Doctur

    Stringer question

    Ask yourself why the factory made them as long as they are. hull support .
  7. Bt Doctur

    Mercruiser 165 inline 6 timing marks - reverse rotation engine?

    truck motors are standard left hand viewed from the fly wheel, your 165 is left hand also
  8. Bt Doctur

    1885 5.7L weak water supply to circulation pump

    water will not go to the manifolds unless the Tstat is open. If it was removed and this is the flow per scott start with a new water pump in the lower unit
  9. Bt Doctur

    prop turns CW by hand very hard ? Clicks but very hard

    Alpha`s use a "dog clutch" when the drive shaft turns the prop clockwise for Fwd the prop is locked to the shaft. When freewheeling in Fwd gear it will ratchet clockwise. perfectly normal. In reverse it will ratchet CCW
  10. Bt Doctur

    Mercruiser MC-1 Hydraulic Ram Hose Leaking

    For yours, NO. there is a port and starboard hose used on those cylinders. look for the casting number on the rams
  11. Bt Doctur

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    keep the carb.
  12. Bt Doctur

    prop turns CW by hand very hard ? Clicks but very hard

    mercruiser Alpha drives must be in fwd for removal and install, your pics look correct if unsure on the procedure ask for a manual
  13. Bt Doctur

    Oil pump

    Yes, it should by hand
  14. Bt Doctur

    32-861213 hot pipe from exaust manifold to intake manifold - what for?

    On carb models, the tube from the exaust manifold to the intake warms the intake for better fuel management. Vortec head do not have the exaust crossover in the manifold
  15. Bt Doctur

    Carburetor choke question

    https://www.carburetor-parts.com/rochesterecc.html
  16. Bt Doctur

    Coil wiring

    Typically there are 2 purple on the + and 2 grey on the - . Again depends on what ign module your using
  17. Bt Doctur

    Marine Power 454 Inboards Few Questions.

    Me neither but
  18. Bt Doctur

    Marine Power 454 Inboards Few Questions.

    here you go https://www.manualslib.com/manual/1194057/Borg-Warner-71c.html
  19. Bt Doctur

    Marine Power 454 Inboards Few Questions.

    I have velvet drives model 10-18-106 serial number 5853. What type of trans fluid do these use? and is there a filter usually? 3 Qts Dextron ATF ,usually a screen not actually a filter. I only see 2 oil filters for the motors for some reason has 2 for each engine. if equipped with a remote...
  20. Bt Doctur

    Missing drive oil bottle ???

    A big No-No is that plastic inline fuel filter with rubber hose on the pressure side of the pump
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