Broken shifter

[SamHit 3]

The 1/4”-20 dog set screw that holds the shifter in place in the transmission, on my 312-8, broke. I can’t get the screw out of the donut, I’ve tried a screw extraction kit but just can’t get it to grab and remove the screw. Any recommendations on other things to try? Or does anyone have a shifter they’d be interested in selling?

I’ll attach a photo of the shifter. 

[oliver2-44 11,650]

The set screw that hold the shifter usually stays in the collar at the top of the transmission.  It is not threaded into the shifter, it just pokes into a hole in the shifter.

 

There is another set screw that holds the donut onto the shifter you should not have to remove it.

[Handy Don 17,033]

19 minutes ago, SamHit said:

Are you sure it’s a setscrew? Mine were either welded or had roll pins.

[WHX?? 57,486]

Are you saying the tip of the dog point broke off and is in the donut? Very unusual if so and even then should be fairly loose in it. 

[ri702bill 12,557]

Ah, the Elephant in the room..... where did the broken tip of the full dog point set screw that holds the donut actually go to?? Not into the Unidrive I hope...You have to find it.

Edited 2 hours ago by ri702bill

[953 nut 67,632]

The attached thread has very good photos of the part and pieces we are looking at here. Take a look at them and let us know what you think.

 

[SamHit 3]

The set screw broke at this point. The right side is in the donut of the shifter, stuck in place. If that doesn’t make sense I will send a close up tonight of what it looks like currently. The other half is still in place in the transmission where it’s meant to screw in. So I can account for both parts, and don’t have concern that it fell into the transmission.

[sqrlgtr 3,395]

The last shifter I took out done the same thing. I got lucky and was able to get it out though funny thing was it wasnt even that tight in trans and still don't know why it broke off unless it was just about rusted in 2. Not much room to work with without splitting trans from frame, only way I know you could get to it if it's being a booger to get out.

Edited 2 hours ago by sqrlgtr

[ri702bill 12,557]

Sometimes - you can gey lucky using a left handed 3/16" drill bit and light pressure ... sometimes.

[ebinmaine 79,780]

2 hours ago, SamHit said:

I can account for both parts

 

3 hours ago, SamHit said:

does anyone have a shifter they’d be interested in selling?

 

Likely I have one here.