Clutch Dust in Hydraulic Fluid causing shifting trouble?

[stkjock]

I've been poking around the tech sections and could not find any related threads there or using our search feature.

I ask this question, in addition to the "mushy" motor mounts and remote mounted shifters in the S197 causing shifter trouble, does anyone have experience with clutch dust getting into the fluid? I have a few friends with Z06 Vettes and this is apparantly a big issue on they hydraulic set up on those cars with dust messing up the fluid and causing shift issues at high RPM. Those guys will swap out there fluid on a frequent basis due to the issue. It seems like its a similar set up to ours. Here's a thread for reference:

http://forums.corvetteforum.com/c6-...tch-pedal-issues-how-to-prevent-and-cure.html

So I am wondering if changing the fluid would be helpful on a stock manual tranny.

 

[stkjock]

WOW 24 hours plus and no one has any thoughts on this. I'm stunned. Thanks for those who took the time to look

 

[Hawgman]

how is dust getting in to a sealed system?

 

[SLOPONY]

i was almost going to ask if this was a joke, please take no offense! Hawgman is right. Its a sealed system. if there is any type of dust in there, it either got contaminated while the cover was off, or something else is going wrong and its some sort of debris from the hydraulic system itself. I am under the impression that if the system was open enough to let dust in, you would have a leak, and a clutch that doesnt work.

 

[19COBRA93]

This scenerio isn't even possible. It's the same as saying you're getting brake dust in your brake fluid. Not possible.

A hydraulic system is very simple. It won't function if there's air in it. If there is debris/dust/dirt/contamination, etc, it will still function, it will just wear out quicker and cause a leat at the master cylinder, or slave cylinder. Even then, no clutch dust will make its' way into the hydraulic system.

It's possible the Corvette guy you talked do didn't know what he was talking about and was just passing off info he'd got from a dirty mechanic.... Or, at some point you misunderstood him.

 

[05mustang_TT_charged]

Well considering who wrote it, Ranger is the most respected guy in the Corvette world. He has over 500 passes between 2 Z06's and set numerous records for bone stock Carvette's.

I believe he may be on to something but my thinking is a little different with our cars since it uses the brake fluid as the hydraulic fluid for the throw out bearing. Could it be heated brake fluid causing seal problems in the TOB. I had 1 fail and it was because of a seal failure.

 

[stkjock]

how is dust getting in to a sealed system?

watch @ 2:25 of the vid. as I understand it, the dust blows past the seals when the TOB is actuated.

This scenerio isn't even possible. It's the same as saying you're getting brake dust in your brake fluid. Not possible.


It's possible the Corvette guy you talked do didn't know what he was talking about and was just passing off info he'd got from a dirty mechanic.... Or, at some point you misunderstood him.

watch the vid... seems to explain how it is possible.

i didnt talk to anyone... I read the thread.... and got the thought that the S197 has a similar set up and maybe issue.

 

[05yellowgt]

If it's a sealed system then how does moisture infiltrate over time? Just through the reservoir cap?

 

[Rypper1]

When you swap out the clutch fluid make sure you go back with the same DOT spec fluid. I thought I was upgrading when I put in DOT spec 5 and found out it wasn't a good thing to do. I was told it could actually damage the seals and o-rings in the slave. Now I just get the Ford fluid.

 

[white05gt]

If it's a sealed system then how does moisture infiltrate over time? Just through the reservoir cap?

Usually due to condensation.

 

[05yellowgt]

Usually due to condensation.

That's my point. If the sealed system is sealed so well then there shouldn't be any way for condensation to be present. If moisture can get in, so can clutch dust IMO. The clutch dust can get in as the TB actuates back and forth.

 

[maxpayne]

...I don't know about that.....but white dust in your nostrils definitely does cause shifting trouble....joke

 

[stkjock]

the system has rubber o-rings that could allow dust to blow thru as I understand the issue