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Thread: lower unit for my cobra (SE109), where does this go?

  1. #1
    Join Date
    Jun 2015
    Posts
    3

    Question lower unit for my cobra (SE109), where does this go?

    I'm hoping this is the right section, doesnt say it is but cobra and johnson/evinrude were all the same stuff from what i remember.

    I bought a Cobra lower unit replacement (SE109)
    http://www.sterndrive.cc/product/Fit...a-0985586.html


    I bolted everything together and have it back on the boat. in the box there was this piece

    i never saw one on my old unit, I called SEI and talked to a tech and he was saying it goes in the front under a rubber cap?? i don't see where it goes or what he is talking about does someone have a picture or something.

    the original one doesn't have it, and there was nothing in the box telling me where to put it. what will happen if i don't install it?

    i still have to figure out the shifting engagement issue. in reverse the prop is locked when turning it by hand. in forward the prop only locks when spinning it in the reverse direction and free spins in forward. this doesn't seem right.... i think it should be locked in both directions when not in Neutral

  2. #2
    Join Date
    Nov 2006
    Posts
    661

    Default

    It is for a speedo pickup. The hole is located at the front of the unit just above the cavitation plate. It is not under a rubber plug, there is just a hole that you stick that part into.

    Regarding the shifting, you need to do a shift adjustment. It sounds like the adjustment is favoring reverse and needs to be more towards forward. The cobras were always finicky with the shift adjustment, so do it by the book.

    Tech Support

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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.