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  1. Bt Doctur

    Coupler

    But is more likely you have an alignment issue
  2. Bt Doctur

    What rotation out drive to buy

    All I/O engines are standard rotation left hand when seen from the flywheel To clear up Bondo, the prop turns to the right not the engine The gear ratio should be 1.84-1
  3. Bt Doctur

    Alpha 1 Gen 1 - Teardown - Need Advice

    If the pump base is melted even slightly you have overheated and the base needs replacing
  4. Bt Doctur

    Bravo 3 steering pin question

    be a good idea to drill in a grease fitting too
  5. Bt Doctur

    First Start of the year and High Oil Pressure

    sender is for a gauge, sensor for alarm circuit
  6. Bt Doctur

    Can you use car oil in a Mercruiser 3.0 engine

    25w-40, 20w-50 straight 30 but not 10-40
  7. Bt Doctur

    2011 Mercruiser 4.3L TKS high temp @ low rpm

    verify the water inlet hose at the transom does not have a kink
  8. Bt Doctur

    3.0 Mercruiser seems to hang or seize when starting

    What is happening when you have a hot battery with clean battery cables on BOTH ends of the cables. Click/crunch or nothing? Does the drive have oil. in it or water. It could be seized
  9. Bt Doctur

    Motor won’t turn over

    ? Did you test run it before purchase
  10. Bt Doctur

    Can I replace a Mercruiser 5.0L with a 4.5L engine?

    6.2 I think would be the best, a drop in motor
  11. Bt Doctur

    350 Magnum - exhaust riser damaged brass plug

    Usually it is a sign the valve covers are reversed, oil fill is usually port side between 2 and 4
  12. Bt Doctur

    350 Magnum - exhaust riser damaged brass plug

    Agree, drain and remove the riser, drill and tap for 1/4 inch pipe using the correct drill bit. If not needed to drain it ,replace with brass allen head plug for clearance
  13. Bt Doctur

    Be easy on me please. Total newbie.

    Or remove the drive first, then beg,borrow,make a T bar using an old shaft to turn the motor
  14. Bt Doctur

    Spark plug heat range

    Plug readings are a bit difficult because of todays fuels
  15. Bt Doctur

    Manifold/riser condition

    dress the surfaces with a fine flat file , look good otherwise
  16. Bt Doctur

    Alpha one drive gear /shaft od 1.50:1

    With a new replacement gear set they want you to remove the small spacer and use rolling torque method, I just reuse the small spacer and just torque the nut down . Never had an issue
  17. Bt Doctur

    replaced gimbal bearing in merc alpha 1. cannot get alignment tool to engage with engine coupler at all. have tried to move bearing every way

    Was the old bearing destroyed or was the drive difficult to remove? If yes ,you have an engine alignment issue
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