Hi fellas. I initially thought they may have be en crush washers but they are not. I disassembled my clutch pack and re-shimmed it through three goes to get something I was happy with. Unfortunately I didn't photograph it.

I purchased six shims which I will measure up and photograph this evening. At a guess, two were 1mm and four were 0.5mm. The previous service person over tightened these as they had heavy indentations of the square drive centre pressed into them.

I set the shims up to the desired thickness then once the drive assembly was done I rolled it on the floor while holding the main shaft. If I could not overcome the force of drag it was too tight. I finished off the two hex nuts with a dab of medium strength locktite.

As you roll the shaft on the floor, preferably carpet or rubber mat so the large outer wheels get some purchase, you should be able to hold the centre shaft from spinning. If the inner clutch plates are to tight the shaft in your hands will spin as there is too much drag to overcome. I found that I did want some amount of drag but not simply free wheeling as then you would have too much pedal free play.

I'll try and get some pics.

Last edited by aldot; 31/01/11 08:13 AM. Reason: correction