A must watch and read for hydraulic clutch owners

[Zachary K.]

I found this on the Corvette forum and hope it isn't against poilcy or will create a problem by transfering the link over. It's great information and the poster did some good homework for those with newer Corvettes with hydraulic clutches.

Take Care of Your Clutch--Preventing or Curing Pedal Issues

http://www.youtube.com/watch?v=gBbsy...e=channel_page

I particularly want to thank George Westby, Director of the Advanced Process Laboratory of Unovis Solutions and his lead engineer Martin Anselm. They collaborated in the analysis of clutch fluid and clutch dust samples, which I sent them from 2006 Z06s.

Click here to download a copy of the Unovis lab report

That report forms an important basis for concluding that clutch dust is infusing the clutch fluid of aggressively driven cars. And it is clutch dust that, if allowed to accumulate, constitutes an abrasive that damages integrity of seals in the hydraulics.

The good news is that we have figured out the root cause. That means the preventative maintenance (frequent swaps of the fluid via the master cylinder reservoir) definitely works. It also explains why, if the seals are already damaged by clutch dust, no amount of clean fluid will heal them. The crucial element is prevention, never allowing the clutch dust to accumulate in the fluid. The tell of its presence is murkiness or cloudiness

per year

Best to all,

Ranger

[Clem Z.]

Re: A must watch and read for hydraulic clutch owners

GM recommends a complete fluid change every 24 months in normal driven corvettes with a stick shift. also they say never open the reservoir cap to check the fluid level just look thru the translucent reservoir to check the level and it should be between the 2 marks on the reservoir. also the fluid will turn dark just from the release material used when molding the rubber parts and may not mean that the fluid is contaminated with clutch dust. that is why tires turn "brown"