fixing the freeplay in the clutch pedal
Posted 12 July 2004 - 11:16 AM
most of us probably have an inch or two of freeplay in the clutch pedal before it actually engages. if the master cylinder is not leaking, and there is no air in the system, then the problem is generally from two other sources.
either the pin connecting the master to the pedal is worn and grooved
the U at the end of the arm of the mastercylinder has wornout elongated holes.
in realitly it is going to be a little of both. this is usually due to the junction not being lubricated and its just metal on metal contact. this junction is also make a funky squeek sometimes if its not lubed.
to prevent and fix this, remove the pin and inspect it for worn grooves.
if its not wornout, just grease it a bit and replace it.
if its slightly worn, replacing it with a new pin will eliminate most of the play.
if the condition is bad, then the U on the mastercylinder is also worn out and almost always, the master itself is on its last leg by now so get a new mastercylinder which comes with the complete arm.
The U at the end of the rod is MB012124 but i don't know how much it costs.
here is something else thats interesting. the dealer is the cheapest source for the clutch master cylinder
well maybe not the local dealer but any of those online ones will have it for around $60 MB012099
88 Starion - 341rwhp@23psi on 91 octane - sold
97 3000GT VR4 - Sold
Posted 16 May 2005 - 11:04 PM
Great post on a common problem. I'd like to add the part number for the clutch clevis pin: MF473490. It should cost about $3.00.
1988 TSi SHP
Posted 20 May 2005 - 12:40 AM
Traded for new set of tires for my wife's Buick: '87 TSI Gold that needs just about all steering and suspension parts replaced, injectors, a new transmission, clutch, and various electrical gremlins. New owner is a mechanic who is already driving it. I couldn't stand letting it sit any more!
'86 ESiR - OEM Roller Cam, Wiseco Forged 8:1 Pistons, Chad's equal length header, TEP T3/T4 turbo, ACT HD clutch, Fidanza Fly, custom 3" exhaust, 3 core oversized radiator, O-ringed block, AJUSA metal shim head gasket, Dawes Device boost controller
'85 Plymouth Conquest Auto , Wiseco 8:1, super light pins, shaved rods, hi-torque cam, 2.5 Exhaust
'84 Dodge Conquest Parts car
'83 Starion - Gutted stock exhaust with '87 TSi muffler, New engine with: BS Elim,forged Wisecos,balanced,Schneider274H,marnal w/oversized stainless valves
'83 Cannonball Run II Jackie Chan car, Basic ring and bearing job w/less than 6K original miles on body, steering, suspension, & rear end, Lightened stock fly, BS Elim, Walbro 255LPH FP, NEW Clearwater head with all new parts, intercooled, 14G turbo, 2750 car weight
'96 Mitsu Mirage w/rebuilt head. Gets 35+MPG.
'87 Dodge Ram50 4WD Rebuilt engine, fresh stock head, Weber carbed, BS elim. Runs great now!
'97 Buick Ultra (supercharged Park Avenue)
Posted 26 May 2008 - 12:00 PM
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