Hydro clutch master cylinder failure rate?

[turbodudey]

I had to replace my clutch master cylinder this past week, becasue it had all but stopped functioning. If I pumped the pedal really fast multiple times, I could sometimes get enough pressure to shift, but that's a rediculous way to drive.

I'm sure having the Audi pressure place contributed to the cylinder failing (clamping force is a little over triple that of the stock clutch).

I'm just curious though if anyone else had a master cylinder kick the can on them (particularly those with aftermarket clutches)?

[gilly02le]

hey man little off topic i guess, but what made you choose an Audi Pressure plate of all things, Instead of an aftermarket neon part?? looked in your log didn't really come up with an answer..

[turbodudey]

hey man little off topic i guess, but what made you choose an Audi Pressure plate of all things, Instead of an aftermarket neon part?? looked in your log didn't really come up with an answer..

For one: It's an OEM part, so it's pretty cheap, and easy to come by. Plus, it clamps alot harder than some other clutches.

[NickKo]

hey man little off topic i guess, but what made you choose an Audi Pressure plate of all things, Instead of an aftermarket neon part?? looked in your log didn't really come up with an answer..

For one: It's an OEM part, so it's pretty cheap, and easy to come by. Plus, it clamps alot harder than some other clutches.

Any problems with fitment, or problems adapting it to work on our application ??
Were any modifications necessary to run the Audi part ??

-Nick

[turbodudey]

hey man little off topic i guess, but what made you choose an Audi Pressure plate of all things, Instead of an aftermarket neon part?? looked in your log didn't really come up with an answer..

For one: It's an OEM part, so it's pretty cheap, and easy to come by. Plus, it clamps alot harder than some other clutches.

Any problems with fitment, or problems adapting it to work on our application ??
Were any modifications necessary to run the Audi part ??

-Nick

Problems... no. Modifications required... yes.

The alignment holes for the dowel pins are slightly too small in diameter, so they just need to be reamed out. And the bolt circle for the mounting bolts is also slightly too small, so they needed to be slotted a bit. There's pictures of that process in my project log somewhere... I think.

Depending on what flywheel you use too, the step height may need to change. I used a non modular light weight Fidanza flywheel, and for that assembly I had to raise the step height .050". Different flywheels may vary.

But anyway. Back on topic: No one with a high performance clutch has had their hydraulic actuators fail? I guess that's a good thing.

[BlackRoseRacing]

My R/T has 65K miles and trani #3 in it with no slave cylinder failure....

[Diablo0]

I'm about 62K on my stock clutch with no failures to my slave as well.