Spec stage 2 clutch kit - shifting issues
Thread Starter
Racer
Joined: Apr 2018
Posts: 296
Likes: 113
From: Norway, Hallingby
Spec stage 2 clutch kit - shifting issues / clutch dragging
After 1.5 years off the road due to a broken rear differential and performing a complete drivetrain rebuild, my 03 C5Z is finally back on the road again. There's one issue though, the clutch is dragging. Verified by raising the RPM to 5000 rpm in gear with the clutch fully depressed, the car lurches forward 😢 Obviosly, the transmission and synchronizers are not happy - locking out gear shifts. Slave and master is bled using a remote bleeder and clutch pedal is firm. According to my measurements, a slave cylinder shim was not needed. The clutch is a SPEC stage II clutch with a lightened flywheel. Google search tells me that a Tick adjustable master is the only solution? I've put one on order, which became darn expensive ($430 when adding shipping and import taxes to Norway) - so I'm hoping that is money well spent?
Details of the drivetrain rebuild on my blog, www.z06vette.no
Last edited by hmhaga; May 6, 2024 at 04:23 AM.
Le Mans Master
Joined: Jun 2016
Posts: 5,440
Likes: 3,997
From: Cincinnati, OH
I think I'm running the same clutch...I have a 10.5" Stage 2 and 10.5" aluminum FW from SPEC. I also have a Tick adj MC...
I can't remember if I needed any shims on the slave cylinder when I did the clutch install but if you measured the air gap right then it SHOULD work? Regardless it is not working for you and not disengaging, therefore the only other option I see is to get an adj MC...
Just be sure to creep up on the pedal adjustment as to not over-throw the slave.
I did repairs backwards. My clutch pedal stuck to the floor one day and no bleeding was fixing it. I put a Tick Adj unit in and still didn't fix it (cheaper and easier than a clutch). That's when I looked at the clutch to find some of the PP fingers failed at ~75kmi. Then I put the SPEC clutch in and been happy ever since.
I can't remember if I needed any shims on the slave cylinder when I did the clutch install but if you measured the air gap right then it SHOULD work? Regardless it is not working for you and not disengaging, therefore the only other option I see is to get an adj MC...
Just be sure to creep up on the pedal adjustment as to not over-throw the slave.
I did repairs backwards. My clutch pedal stuck to the floor one day and no bleeding was fixing it. I put a Tick Adj unit in and still didn't fix it (cheaper and easier than a clutch). That's when I looked at the clutch to find some of the PP fingers failed at ~75kmi. Then I put the SPEC clutch in and been happy ever since.
Last edited by smitty2919; May 7, 2024 at 02:29 PM.
Thread Starter
Racer
Joined: Apr 2018
Posts: 296
Likes: 113
From: Norway, Hallingby
Last edited by hmhaga; May 8, 2024 at 03:51 AM.
