shift shaft conical set screws, how tight? Options

[malcolm2]

Ok to avoid the "screw won't come out" issue again, let me ask.....What is the object here? I am installing the long under the engine, curved shift shaft on my 75, side shift tranny. The coupling by the fire wall gives me no issues. However the one at the shift console does.

I assume you want to screw in the set screw until the shaft has NO PLAY, correct?

It ended up pretty tight, but I have no play. I guess it could it have wiggled around over the years and increased the size of the hole in the shaft.

Thoughts??

[Bartlett 914]

New ones have a nylon pin that squeezes in the threads. This acts like a nylock nut except it is a screw. I purchase 100 1/8" nylon balls from McMastar Carr. They cost about 5.00 for 100. I briefly head the cone screw. I mean briefly! the old nylon will bubble up real fast. Pick it out and press a nylon ball in it's place. Press it in using a vise. It will stick out more than a new part will, When tightening. some will shave off. It works perfect. I have done this many many times with NO problems. The only reason for me to now replace a screw is it the hex key has damaged the socket