roger 04 rt
New member
The wear pattern on the shaft, with its curved shape remains very telling. I like Anton's solution of replacing the shaft and all clutch parts, which he says from experience works. Here's why it makes sense to me.
Looking at the clutch disk, it has 5 flexible arms. This helps the clutch system to accommodate any clutch disk planarity issues. Setting aside misalignment for a moment, almost any of the parts of the clutch system could produce an error in planarity with the clutch disengaged. When fully engaged, the housing covers control final planarity, which replacing the clutch pack would resolve as Anton says in 99.x% of cases.
Fully engaged, a planarity error puts a load on the input shaft that could cause wear.
As you engage the clutch, the load from a planarity error will progress radially around the shaft until all surfaces and shafts are moving at the same speed, in a sort of wobble. Try and imagine what that would do if the shaft to hub engagement were less than it is.
Either fully or partially engaged, once wear begins if there is a planarity error, it's not hard to imagine wear accelerating.
So I think I'd take Anton's approach which uses available parts and doesn't require an alignment analysis and repair. Then, myself, I'd take the added step of a Bruno's extended hub (since GSAddict's shaft isn't available) for full engagement to reduce any tendency of a planarity error to progress during engagement or wobble with wear.
RB
Looking at the clutch disk, it has 5 flexible arms. This helps the clutch system to accommodate any clutch disk planarity issues. Setting aside misalignment for a moment, almost any of the parts of the clutch system could produce an error in planarity with the clutch disengaged. When fully engaged, the housing covers control final planarity, which replacing the clutch pack would resolve as Anton says in 99.x% of cases.
Fully engaged, a planarity error puts a load on the input shaft that could cause wear.
As you engage the clutch, the load from a planarity error will progress radially around the shaft until all surfaces and shafts are moving at the same speed, in a sort of wobble. Try and imagine what that would do if the shaft to hub engagement were less than it is.
Either fully or partially engaged, once wear begins if there is a planarity error, it's not hard to imagine wear accelerating.
So I think I'd take Anton's approach which uses available parts and doesn't require an alignment analysis and repair. Then, myself, I'd take the added step of a Bruno's extended hub (since GSAddict's shaft isn't available) for full engagement to reduce any tendency of a planarity error to progress during engagement or wobble with wear.
RB