Upgraded Clutch Slave Cylinder Fails Again!

pbs370z

I'm no expert but that's what it looks like to me too Joe. I got some bad advice and only broke in the clutch for about 250 miles before tracking and they were not all city miles - combination of highway and city. Not nearly enough break-in apparently. So it does look like it did get too hot in small areas which caused it to fail. Pressure plate plate looks good to me with all fingers evenly matched. Thanks for your diagnosis on these pictures. I'll get back with you. Phil

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'10 Z, Sport Pkg 6 MT, Stillen Brake Cooler, Z1 Oil Cooler w/Setrab 25 row/Mocal T-stat, Southbend Clutch w/light wt Flywheel.

Spooler

Ouch, that would do it. It looked to me like the clutch disk was not fully broke in yet. I just wasn't sure. I had never seen that before until this post.

pbs370z

Update on my clutch disc:
Joe at Zspeed gave me an RMA for the clutch disc which he didn't really have to do, so you have to give Joe credit and also South Bend for repairing the clutch disk for me. Better than expected customer support. How often does that happen these days?
What can I say except thanks to both of them!

Update: this time I put 1000 miles (city/hiway) on the car before taking it to the track. Went out to the track back in early Nov and so far so good.

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'10 Z, Sport Pkg 6 MT, Stillen Brake Cooler, Z1 Oil Cooler w/Setrab 25 row/Mocal T-stat, Southbend Clutch w/light wt Flywheel.

JohnneyC01

Its great to know that Joe at Zspeed and Southbend stands by their products and offers help when needed. I just had my Southbend Stage 2 Daily Clutch Kit installed today. Currently in the breaking in stage until I reach about 750 miles. My initial impression: this is how the car should have came from the factory! I no longer have the sinking clutch pedal issue after shifting from normal city driving for 10 minutes.

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Stillen Gen 3 Intake - Southbend Clutch - Zspeed CSC