The clutch pedal is welded to a tube about 3" long, inside either end of this tube is a needle roller bearing that makes up the pedal pivot, it pivots on a long bolt about 6" long, along side the brake pedal pivot, they use the same bolt to pivot off. I only mentioned the roller bearings because most cars only have a nylon bush or nothing so our Alfa,s are well engineered.
The pivot bolt has a nyloc nut to the left of the clutch pedal.
Hanging down from under the dash is a bracket, then the clutch pedal, another bracket, the brake pedal and a third bracket, the long 1/2" dia bolt goes through them all with the nyloc nut to the left.
If this bolt were tightened very tight the pedals would be fully bound and would not move, thus the nyloc nut so little pressure can be put on the bolt without the nut unwinding.
Due to roller bearings being used in the pivot the clutch pedal rotates around the large bolt superbly, however there is binding at the ends of the tube against the bracket.
Alfa has fitted a steel washer at either end of the tube before either bracket and due to side load on the tube when you push the clutch down the tube,washer and bracket are pushed together with some force and if there is little grease there they start to bind and squeak or groan.
I replaced the steel washers with industrial nylon ones although brass maybe better. No more problems.
The clutch pedal also has an overcenter device to the right side and going up under the dash that gives the pedal feel 1/3 of the way down which if not lubricated can make a clicking noise. Benje's thumbnail diagram Items 3 and 6 telescope inside each other with the spring 7 on the outside like a small shocker.
Also the needle rollers are inside either end of the pedal tube, thumbnail Item 1.
I hope this helps.
Last edited by HOWIE; 26-08-09 at 14:30.