86 merc alpha 1st gen 140 shifting problem
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86 merc alpha 1st gen 140 shifting problem

  1. #1
    Senior Member creepingcharlie's Avatar
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    Default 86 merc alpha 1st gen 140 shifting problem

    I need some help and info. I am working on a merc out drive that busted the the lower shift cable. Once I got everything back together adjusted the cable. I started it and check to see if it would engage in forward and reverse. Well now it dosent go into reverse. I check the lower unit when it was out and it engages in all gears when not installed. But as soon as I hook up the cable to the shift mechanism and try to shift withe lever reverse dosent fully engage. What can i check to see if something else is wrong.

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    provided your adjustments are correct, I would check to make sure the shift cable was threaded in all the way into the bell hsg. If it is not threaded in all of the way into the bell housing (where the hex actually touches the hsg), the shift slide will hit the brass hex portion of the cable before it engages reverse gear but in most cases it should activate the interrupter switch if it is "bound" up that much. You need to verify the six inch dimension on the lower cable, make sure the lower cable anchor is 2/3rds of the way up in the slot and then adjust the upper cable (cable from control to bracket) to achieve equal ratchet in fwd and reverse.

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    Senior Member creepingcharlie's Avatar
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    When you are referring to the anchor. Do you mean the part that treads into the upper end of the cable where you measure the 6 inchs. I have that part tread all the way in. I also know that the hex is not completely butted to the bellhouseing. It about a 1/6 of a inch from the housing. It sounds like this may be where my problem lies. As the shoe shaft is about a 1/6 off of being straight forward. Thanks for your response.

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  6. #4
    Senior Member creepingcharlie's Avatar
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    OK update.I tightened up the cable all the way up to the housing and adjusted the cable the right way. Now it engages in to all forward and reverse with no problems. I will be water testing it this friday. Wish me luck.

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    Sorry for the delayed response. The anchor I am referring to is the stud that the lower cable attaches to. That anchor/stud is located in a slot. the further up in the slot the stud is located ( or closer to the anchor/stud for the upper control cable) the more reverse engagement you will have. 1/16th of an inch should not bother anything. As long as you have equal "ratchet" in both fwd/rev and it should shift just fine

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