Clutch squeak (interior, not clutch assist spring)

[987_RDC]

When depressing the clutch rapidly there is an audible squeak in the cabin. I've removed the clutch assist spring and confirmed it is still present. This does not appear to be related to the clutch fork since 996 02+ and sound is inside the cabin, not exterior.

It appears to be coming from the black plastic "coupler" that threads the cable through the firewall. Anyone tackle this problem? I tried some white lithium grease with no luck....

Edited November 20, 2012 by 987_RDC

[DBJoe996]

Cable? The pedals are on an axle with plastic bushings for bearings. When you push on the clutch pedal it pushes the pushrod through the firewall. Try some silicone spray lubricate on everything, including the pedal bushings.

[Ahsai]

For me, the squeak was from where the red arrow is pointing at.

[987_RDC]

I will try red arrow area.

Is silicon spray better than white lithium grease?

If that picture is a blow up of the part that goes into the firewall then that is exactly where I hear it. (bubble portion)

Edited November 21, 2012 by 987_RDC

[Ahsai]

I used wurth hhs2000 which is quite light. I never tried to spray the inside of the clutch master cylinder as the bubble portion shows. I was afraid of destroying any rubber seals inside with the wrong type of lube.

[987_RDC]

I agree that a petroleum distillate product could cause seal damage. Thus selecting white lithium. I will try the silicon spray.

[JFP in PA]

A better suggestion: DuPont spray dry teflon coating:

Cost about $8 a can, sold by everyone from Amazon to Lowes. Leaves a true Teflon coating that does not attract dirt and does not bother plastic parts. We even use this stuff on sticky starter Bendix drives, works like a charm.

Edited November 22, 2012 by JFP in PA

[987_RDC]

Ordered! Thanks.

[JFP in PA]

Anytime; you will find that this stuff is an excellent general purpose "squeak stopper". We always keep a couple cans around the shop.