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  1. #1
    Petty Officer 3rd Class jackball42's Avatar
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    Default Mercruiser 140 reverse cable adjustment

    1977 Mercruiser 140 goes into forward gear fine but when I shift into reverse it doesnt engage quite right. It catches for a moment and then releases and then finally catches. Can I adjust the shifter cable to correct this?

  2. #2
    Commander Eric 3.7LX Alpha 1's Avatar
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    Default Re: Mercruiser 140 reverse cable adjustment

    You can try:

    How old is the lower shift cable from the engine bracket to the drive?
    Attached Images Attached Images

  3. #3
    Petty Officer 3rd Class jackball42's Avatar
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    Default Re: Mercruiser 140 reverse cable adjustment

    I dont know how old the cable is, it was in the boat when I got it. It could be anywhere from 1977 to 2005.

  4. #4
    Commander Eric 3.7LX Alpha 1's Avatar
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    Default Re: Mercruiser 140 reverse cable adjustment

    A lower shift cable new in '05 is even overdue for replacement. If the bellows are as old they are also due for replacement.
    Recommended every 5-6 years.

    Here is a link to your service manual, online version only, cannot download, but can flip thru pages and print as needed. You will need either Manual 2 or 3 depending on the year of the engine/drive:
    http://boatinfo.no/lib/library.html#

    they are huge files so will take a couple to open up.

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