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  1. #1
    Cadet
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    Dec 2009
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    Default adjusting lower shift cable - Alpha I

    I'm trying to adjust the lower shift cable on an alpha I drive (motor is mercruiser 4.3 L V6). The instructions say to manually shift (push in on lower shift cable) the drive into gear while some one spins the prop. I've got that down - the drive shifts fine into gear. The instructions say to adjsut cable so that you measure exactly 6 inches from the center of the brass barrel to the cable end guide. Here's where I need clarification. Do I measure to the end/tip of the cable end guide or to the center of mounting hole.

  2. #2
    Chief Petty Officer
    Join Date
    Sep 2002
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    425

    Default Re: adjusting lower shift cable - Alpha I

    info i have says pre set dimension is from center of barrell to the center of the hole in the plastic piece. i have used the procedure below with excellent results.

    http://www.mercstuff.com/images/shiftcable.jpg

  3. #3
    Honorary Moderator Emeritus Don S's Avatar
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    Aug 2004
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    Default Re: adjusting lower shift cable - Alpha I

    What year?
    If you actually have an Alpha I, then go up to the adults only sticky at the top of the forum, and download service manual #6. Section 2 has step by step instructions with drawings on how to adjust it.

    I would be very careful with mercstuf info. It's not always accurate.
    Don S.


    Please, no PM's (Private Messages) regarding boat/engine problems.
    That is what the forums are for.
    Only forum/moderator issues will be answered in PM's.

  4. #4
    Cadet
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    Louisiana
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    Default Re: adjusting lower shift cable - Alpha I

    Thanks for the replys. The drive is an Alpha I gen II (1998). I downloaded service manual 14 and instructions say exactly 6 inches from center of mounting hole (cable end guide) to center of adjustable brass barrel. The instructions I had were a little vague in this measurement.

    Hoot, I also printed out your instructions and will keep that for reference. Thanks again.

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