Cub 108 clutch drive shaft

[Bob95065]

I had to replace the disc and throwout bearing on my 1000 that I got back after 10 years. I had the engine out and this is how I compressed the spring:

I put the rear pin in the shaft and loaded the big spring, throwout bearing and lever on the shaft and installed it in the tractor. I connected the hinge pin at the top of the lever and put the rod and spring in the bottom. I only threaded the nut on the rod until the nut was fully engaged and the rod was flush with the nut and no more.

I used a wire zip tie to hold the pedal up. I pushed the lever back with my right hand and put the back end of the linkage rod in the lever on the clutch/brake with my left. It wasn't easy but I did it. Once I had the spring compressed I was able to install the front pin and the pressure plates and disc. I adjusted the clutch per the manual.

My clutch throwout lever was worn and I was trying to get away with reusing it. My plan didn't work. The second time I did this the engine was in the tractor. I removed the muffler, loosened the engine mounting bolts and slid it forward as far as I could. I did the same thing as what the engine was in the frame except with less room.

In hindsight I could have used a ratchet strap or another mechanical means to compress the spring but I knew I could do it with brute force. I hope the clutch won't need service for another 40 years and I won't have to do it again.

Bob

[Yosemite Sam]

I hate to throw a wrench into your works but these things were not mentioned in this thread and they have been bugging me.

I hope that you have had the pressure plates turned.

Please use a new bushing in your 3 pin driver.

Put a little grease on the end of the shaft where it goes into the 3 pin driver (even if the bushing is oil impregnated).

[dvogtvpe]

the saying goes "when in doubt throw it out" same goes for installing ball bearings. "when in doubt numbers out" I don't know how long those sayings were around . old guys were telling me that in the 70's . apparently they date farther back than that.

if its worn now. how much am I going to use it? do I want to do this again in a year or 2 ? and How much more will it wear and damage some of my new parts that I just put in? are the questions you can ask yourself. if you can answer those then you know what to do.

[Dave_With_Cub108]

Yes, spending $30 for a new clutch drive shaft is the best choice so that all the other clutch parts aren't degraded from an out-of-round shaft.

I purchased the clutch drive shaft from Yosemite Sam's web site which offered a much better price than what I was seeing on-line at other sites.

Thanks again for the advice,
Dave