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  1. Alumarine

    Owners manual for 4.3 MPI with alpha-1 outdrive?

    Here's a link to an online owners manual. If it's not available you can order a hard copy. https://www.mercurymarine.com/en/us/land/owners-manuals/
  2. Alumarine

    1999 Caravelle VDO Speedometer

    I can only guess that the transducer is for a depth finder. If so, and you know the make and model, you should be able to get a new transducer.
  3. Alumarine

    trim issue

    Does it sound like the pump is working when it won't tilt up? Have you tried using the tilt switch on the motor when this happens?
  4. Alumarine

    1999 Caravelle VDO Speedometer

    Look on the back of the gauge. If there's a small rubber hose going into it then it's a pitot tube gauge. The hose attaches to either the motor leg or a fixed pitot tube pickup on the transom. What motor do you have?
  5. Alumarine

    3.0 seems low on power and dieseling at shut off

    In the meantime, try letting it idle for a minute before shutting it down.
  6. Alumarine

    What prop should I run on my 18' holiday?

    I'd try a Mercury 14.25x19.
  7. Alumarine

    Compatible Alternator?

    Have you checked with a starter/alternator rebuild shop to see about getting it fixed?
  8. Alumarine

    Bilge pump

    Welcome, If it came standard with a bilge pump or not a lot of things could be added, discarded or broken in 37 years. You'll have to look around to be sure.
  9. Alumarine

    Listing to starboard

    Trim tabs won't help at idle speed.
  10. Alumarine

    Pre-Alpha Visual Identification Resources

    There used to be a pictorial showing the differences but did you see this?
  11. Alumarine

    Looking to add a drain plug to a jon boat

    This type would be easy to install. https://www.iboats.com/shop/beckson-drain-plug-1in-black.html
  12. Alumarine

    help with mercruiser 470 with crankshaft hung generator

    There's also Breezeworks that offers a kit.
  13. Alumarine

    power trim issue, 87 45hp classic 50

    Check to see if the motor is getting voltage when you operate up and down. If it is, take it apart to check the brushes.
  14. Alumarine

    power trim issue, 87 45hp classic 50

    Here's an older wiring diagram that might help.
  15. Alumarine

    Super stuck gimbal bearing in Mercruiser Pre-Alpha -- is there a clip?

    Here's a picture of the bearing held in by the clip. It's not a good picture but the ends of the clips are at 11:00 and 1:00 with a gap in between. What nola mike is referring to is the slot to tilt and remove the inner bearing.
  16. Alumarine

    Tilt/Trim 1979 50hp

    As others have said it's possible to retrofit power tilt/trim to that motor. I've seen them often on craigslist type buy and sells. Or, if you have a place that sells used boat nearby parts they might have it. You would need one from approx. 1970-1982?
  17. Alumarine

    Tilt/Trim 1979 50hp

    You only need to tilt the motor when trailering if the skeg would drag if you didn't. 2 of my trailers I never tilt the motors. 1 I have to.
  18. Alumarine

    Tilt/Trim 1979 50hp

    On that motor I'd only try and tilt it on land from behind the motor by grabbing the skeg. Those pistons won't help. They are to absorb the shock of hitting something. If anything they make it harder to tilt. 40 years ago I would do it from inside.
  19. Alumarine

    Super stuck gimbal bearing in Mercruiser Pre-Alpha -- is there a clip?

    I made this gimbal bearing removal tool using a rear bearing puller attached to a length of I think 5/8" fine thread ready rod. Even using this it fought me good but it worked. I'm sure the bearing was original.
  20. Alumarine

    Starting a long sitting, 2003 Mercruiser 3.0 alpha one, with a gen 2 sterndrive.

    The only other thing I might do is ground the coil, pull the plugs and engage the starter until the oil pressure built up. I'd pull the plugs to make it easier on the starter.
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