When did BMW change the clutch and flywheel?
The early pressure ring had standard blade screws which should not be used; instead use 6 point head Allen screws; torque to a target of 16.6 foot-pounds. BMW made major changes to the clutch/flywheel parts in 1980 (in some instances, this did not happen until 1982).
What was the original BMW airhead clutch plate?
1981 only clutch parts were troublesome, & there have been some nasty failures. There were some soft splines on these clutch discs, causing failure of transmission input shaft splines. The initial clutch friction disc, called officially the clutch plate, was 21-21-1-242-370.
How many spacers are in BMW airhead clutch?
The replacement diaphragm springs were changed, & the 6 spacers were no longer used. Spacers are sometimes added if parts have been resurfaced and are thus thinner. There were several types of diaphragm springs used, & the heavy duty type is usually stamped with the part number.
What kind of clutch plate do I use?
If you are updating, the updated parts are the -035 spring; the 21-21-1-236-332 clutch plate which has an extra set of rivets & a plate, on opposite side, locks those. Another later part to use is the 21-21-1-231-666 pressure ring.
The early pressure ring had standard blade screws which should not be used; instead use 6 point head Allen screws; torque to a target of 16.6 foot-pounds. BMW made major changes to the clutch/flywheel parts in 1980 (in some instances, this did not happen until 1982).
1981 only clutch parts were troublesome, & there have been some nasty failures. There were some soft splines on these clutch discs, causing failure of transmission input shaft splines. The initial clutch friction disc, called officially the clutch plate, was 21-21-1-242-370.
The replacement diaphragm springs were changed, & the 6 spacers were no longer used. Spacers are sometimes added if parts have been resurfaced and are thus thinner. There were several types of diaphragm springs used, & the heavy duty type is usually stamped with the part number.
How do you adjust the clutch on a BMW?
Put a piece of duct tape on the middle like a flag, write “BMW Clutch Adjustment 201mm” and you got a free BMW Special Tool. 6) The second adjustment is made at the rear of the transmission, using the adjuster screw and locknut on the clutch arm.
Why is my clutch plate stuck on my bike?
Click to expand… It usually happens to bikes that have sat for a long time when they had sig moisture in the transmission – the friction pads on the fiber plates are stuck in small amounts of rust (and/or sticky goo) on the steel plates.