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Mercruiser 888 not engaging

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  • Mercruiser 888 not engaging

    Need help on outdrive shift linkage on a 1974 888 outdrive. It was working last weekend on the water now it only clanks and spins barely as if it was in the forward position. Engine revs up and all cables move but no sign of reverse or forward engaging when control lever is moved either forward, neutral, or reverse.

  • #2
    That could be a couple things. Might be the shift cable has come loose at the shifter or the shift cable from the linkage at the motor to the out drive. Check the shifter first.

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    • #3
      Unhook the shift cable from the control arm on the outdrive to see if the shifter will engage the gears. If that works then the shifter cable may be loose as 18ft Trophy says.
      The cruise liner QE2 moves only six inches for each gallon of diesel fuel that it burns.

      1982 28' Long Cabin "Molly Brown" sweating through a long hot summer. Massive California forest fires fill our sky with smoke. SUP paddlers and kayakers transit the harbor with abandon, thinking they have the right of way over all boats.

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      • #4
        9 out of ten times its the shift cable to the drive. More often than not you'll need to replace it. Worse case its the clutch dog but that's a long shot because you didn't mention grinding.

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        • #5
          one way to narrow it down is to take the shift cable from the shifter off at the shift interupter and manually shift it
          1980 2400 Cuddy I/O, 2017 Cummins 4BT coupled to a Volvo DP-SM with F9 Props, and a 2014 Mercury 15HP Pro-Kicker "LOOSE CHANGE"

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          • #6
            I'll try some of these. in neutral it slowly turns the prop and makes a light clunking sound but no sound when fully throttled in forward and reverse

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            • #7
              where are you located?
              1980 2400 Cuddy I/O, 2017 Cummins 4BT coupled to a Volvo DP-SM with F9 Props, and a 2014 Mercury 15HP Pro-Kicker "LOOSE CHANGE"

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              • #8
                Location

                Im located in Tacoma WA

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                • #9
                  if only you were closer, i think we have some knowledgeable members down that way that might be able to lend a hand
                  1980 2400 Cuddy I/O, 2017 Cummins 4BT coupled to a Volvo DP-SM with F9 Props, and a 2014 Mercury 15HP Pro-Kicker "LOOSE CHANGE"

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