Thank you for the update, aldot. Can you check the clutch clearances please, with feeler gauges? I understand that is not the way you set it up, and what you ended up doing is very similar to a previous report by a member who just set the minimum clearance that allowed the clutches to rotate without drag. However I think it would be useful to members to have a fairly specific idea of what clearance that turns out to be, just in case the clutch plates have a slight friction sliding across the square shaft in the center of the clutch, which might make it difficult to set up just by clutch drag alone. It also will help people to buy shims, since they will know what sort of change to make each time they dismantle the clutch shaft to reduce clutch slack.
It sounds as if you expect to readjust the shim stack by 0.25 mm (0.010") each time you need to reduce clutch clearance. Is your clutch linkage adjustable so you could remove a shim on one side only, or do you have a fixed linkage and therefore have to remove shims on both sides at once? The reason I ask, is that if you can slide the center thrust bearing sideways a bit, you may be able to just remove a shim on one side, so you'd be adjusting each clutch by only 0.005", rather than 0.010".
