| Dukess. The reason that you have to put a friction plate first is that, with the tangs around the outside this holds the friction plate in place. A steel pressure plate only has the teeth around the inside dia. This is to transfer the drive from the hub to the basket. With a slipper clutch the hub is in two parts, the central splined part is seperate to the friction bearing plate to the far end. The hub can only drive in one direction, when engine braking occurs the central part of the hub moves forward, this removes the pressure the plates had on one and other.Because the friction plate is the first to go in, it can not move because it is held by the basket. If it was a steel plate first, this can slide of the end of the central hub section and slip be hind the hub preventing all the plates from pressing together. Hope this all makes sence. You should have a f'plate first then a plain steel plate, then F/P and then the concave plate, marked with a dot. Test the plate on a flat surface. If it has no or very little curvature get them replaced.
Remember F/P, s/p, concave plate with dot towards you, f/p, s/p and so on until the last but one s/p. This also should be a concave plate, this time with the dot away from you. finish with a s/p and measure the gap from the face of the s/p to the edge of the hub, this should read on a slipper 4 -5 mm.
Jon  |