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Thread: Drive getting noisy

  1. #1
    Join Date
    Feb 2012
    Posts
    14

    Default Drive getting noisy

    I replace my OMC drive last year and it has been great, I have 53.2 hrs on it and went to the lake yesterday and it is getting noisier, with the engine running and in neutral no noise but driving it at 30mph it has a noticeable whine to it, also my wife was skiing behind it and said it sounded like the prop was hitting something, I stopped the boat and inspected it and saw nothing, it turns freely and doesn't interfere with anything, any ideas?

  2. #2
    Join Date
    Nov 2006
    Posts
    661

    Default

    I would check the gimbal bearing. Those are known to make a growling sound when they are failing. You need to remove the drive to check it and then turn the bearing by hand. it should be perfectly smooth. if it isn't, then replace it. Also check the magnet on the drain plug to make sure everything is okay in the drive.

    Tech Support

  3. #3
    Join Date
    Feb 2012
    Posts
    14

    Default

    I drained the oil from the drive and found some small metal pieces on the plug. I have changed the oil before and have never seen pieces that big.

  4. #4
    Join Date
    Nov 2006
    Posts
    661

    Default

    If you have pictures, please email them to warranty@sterndrive.cc

    Tech Support

  5. #5
    Join Date
    Feb 2012
    Posts
    14

    Default Noisy drive

    It's been a while but the drive started making a whiney noise again, you can hear it in and out of gear, worse when in forward under a load. Gimbal bearing and ujoint nice and smooth, gear oil pretty clean. I am thinking something wrong in the upper end, any ideas?

  6. #6

    Default

    Hello,

    It could be a gimbal bearing or a bearing for the input shaft on the upper unit. It would probably be best if you had a marine mechanic take a look and see which one the noise is coming from.
    Brunswick Corporation is the original equipment manufacturer (OEM). Sterndrive Engineering, Inc. (or SEI) is not affiliated with the Brunswick Corporation and is not authorized to sell or service Brunswick products.

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Sterndrive Engineering, Inc. (SEI) manufactures a stern drive designed to replace Mercury Marine's MerCruiserŽ Alpha OneŽ, R, MR, Gen II and Bravo OneŽ stern drives. MerCruiserŽ Alpha One, R, MR, Gen II and Bravo OneŽ are trademarks of the Brunswick Corporation. SEI has no affiliation with the Brunswick Corporation. Consequently, any warranties governing products and or sold by Brunswick Corporation will not apply to products manufactured and or sold by SEI, or to products damaged due to the operation of an SEI product.