Shift Cut-off switch needs adjusting

[larr630]

Hi to all! I have a 94 4.3l Mercruiser. Just had the motor completely rebuilt. After reinstalling the engine and hooking up all the externals back to the original positions, the shift cut-off switch doesnt want to work right. I thought it was the switch so I bought the new replacment bracket/plunger switch that now is standard for the motor. But when I shift to reverse or forward, the switch stays engaged. I have tried spinning the adjustment nut on the the linkage to different positions to no avail. Anyone with any advice would be greatly appreciated. Thanks!

 

[Don S]

Re: Shift Cut-off switch needs adjusting

Disconnect the lower shift cable and see if the shift interrupt switch centers itself.

I seriously doubt it's a switch problem. Much more likely the shift linkage at the drive missed, or wrong, or the cable is faulty.

A couple of pictures of your shift plate while in neutral and in gear would sure help show the problem.

http://forums.iboats.com/showthread.php?t=468676

 

[larr630]

Re: Shift Cut-off switch needs adjusting

Rodger that Don. Will do. When I reinstalled the outdrive, I had the shift tab in the wrong place and the cable part that sits over the dog ear at the outdrive got stuck. So i backed the outdrive back out enough to readjust it and it seemed to look fine. But the shift cut off hasnt worked right since and it worked fine before the motor was pulled in Jan. I guess I should Take the outdrive back off and see if something is binding or maybe the cable is corroded. Not sure

 

[larr630]

Re: Shift Cut-off switch needs adjusting

You want the shift cable disconnected from the plate I am assuming?

 

[Don S]

Re: Shift Cut-off switch needs adjusting

Yes, just take the cable that goes from the shift plate to the drive and disconnect it and take it out of the equation.