604 transmission shifter

[jb4249 139]

My shifter lever pulls out of the transmission. Question is what holds it in. There is a bolt with lock nut at the top, does that need to be tightened? I just picked this up and I’m just cleaning it. 

[953 nut 59,996]

This thread has you covered.

 

[jb4249 139]

I figured it out. The small set screw at the top of transmission had the tip sheared. Ordered parts from EBay. 

[ri702bill 9,431]

Ah, but where did the sheared off part go??? Into the Unidrive where it hopefully made it's way to the bottom.

Drain the fluid to see if it comes out...... before it gets swirled up and gets wedged into the mesh of gears. 

[jb4249 139]

Wow. Good catch. I plan on draining it tomorrow. I’ll watch for it. Maybe use a screen

thanks

 

[stevasaurus 23,279]

It's a good bet that broken piece is on the front side of the hump in the bottom of your trans and the drain plug is on the other.  Jack up the front of your horse as high as you can and flush out with diesel fuel...use a screen.  

[jb4249 139]

I’ve been flushing with automatic transmission fluid with no luck yet. I’ll get some diesel today 

[jb4249 139]

Another question for you all. My google search says use SAE 40 gear lube. I did find some but had to order it. Is this the right lubricant for the old transmission?

[953 nut 59,996]

The older transmissions like your had a tendency for the shift forks to hydraulically lock if gear oil (SAE 90) was used but the SAE 40 solved the problem. I have used it for well over twenty five years without any problem.

[stevasaurus 23,279]

Use 90wt gear oil, you will be fine with that in your climate.  When using your horse, always stop, lower your idle, then shift to the gear you want.  Never shift on the fly...double clutching does not work here...your clutch is the slack in the drive belt.