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  1. Bt Doctur

    Mercruiser 3.7 / 470 Holley EFI Sniper.

    keep the carb.
  2. 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
  3. Bt Doctur

    Oil pump

    Yes, it should by hand
  4. 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
  5. Bt Doctur

    Carburetor choke question

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

    Coil wiring

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

    Marine Power 454 Inboards Few Questions.

    Me neither but
  8. Bt Doctur

    Marine Power 454 Inboards Few Questions.

    here you go https://www.manualslib.com/manual/1194057/Borg-Warner-71c.html
  9. 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...
  10. 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
  11. Bt Doctur

    7.4mpi head torque

    454 CID (7.4L) / 502 CID (8.2L)SERVICE MANUAL NUMBER 23 Page 3A-390-861326--1 MARCH 199 short bolts 85, long bolts 92
  12. Bt Doctur

    MerCruiser 5.7/350 MIE flywheel.

    Remember, a rear entry starter is opposite the engine rotation . Eg: a standard motor uses a reverse rotation starter and a reverse rotation motor uses a standard starter
  13. Bt Doctur

    7.4mpi head torque

    the 95 is for the main bearing cap bolts not head bolts
  14. Bt Doctur

    Anyone have a wire diagram for seaflo/no float bilge pump to seaflo 3 way rocker switch

    Much better way is to wire the float switch directly to the battery source with a fuse and then to the pump
  15. Bt Doctur

    How do I change engine rotation direction?

    pistons have a small notch in them, this shows you where the oil squirt hole is in the con rod to oil the underside of the cam lobes.
  16. Bt Doctur

    How do I change engine rotation direction?

    starter too
  17. Bt Doctur

    MerCruiser 5.7/350 MIE flywheel.

    flywheel rotation has nothing to do with flywhels.
  18. Bt Doctur

    OMC trim cylinders stuck retracted

    I do recall hearing some fine bubbling the last time the drive went down fully tonight. Your too low on oil
  19. Bt Doctur

    MerCruiser 5.7/350 MIE flywheel.

    what transmission do you have?
  20. Bt Doctur

    Hour Meter Wiring

    one wire to ground, one wire to ignition hot
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