Nissan 370Z Forum - View Single Post

Fountainhead · 08-08-2014, 07:25 PM

Hey L33t,
Thanks for the rep.
I guess hydraulically speaking, an O-ring is the only solution for a device like this. I suppose a better O-ring material could be used but I guess engineers deemed it sufficient for the intended purpose.
The CSC donated by JarBlue had 52,000 miles on it and (to my eyes) showed no scarring on the cylinder bores and only damage to the O-ring where I gouged around messing with it. It was working when taken out. What I find most amazing is the thrust bearing is ALWAYS against the clutch fingers and spins at the same speed as the engine. It's not bathed in oil or lubed after manufacture, yet the one from JB's spins so smooth you can't feel any friction. Amazing bearing technology.
I have faith in the guys that designed the piece, my neighbor's new Z06/z07 Stingray has a CSC, and in just a few trips to the track guess what? His CSC started failing! (or rather his clutch pedal failed to return to top/start position).
So he cleaned out his Filthy black clutch fluid and it's OK now.
Treat this things right - no race car - and they'll treat you right. I would rather have the clutch fork myself though.

08-08-2014, 07:25 PM	#8 (permalink)
Fountainhead Track Member Join Date: Feb 2013 Location: FL Posts: 834 Drives: 2019 Civic Type R Rep Power: 14	Hey L33t, Thanks for the rep. I guess hydraulically speaking, an O-ring is the only solution for a device like this. I suppose a better O-ring material could be used but I guess engineers deemed it sufficient for the intended purpose. The CSC donated by JarBlue had 52,000 miles on it and (to my eyes) showed no scarring on the cylinder bores and only damage to the O-ring where I gouged around messing with it. It was working when taken out. What I find most amazing is the thrust bearing is ALWAYS against the clutch fingers and spins at the same speed as the engine. It's not bathed in oil or lubed after manufacture, yet the one from JB's spins so smooth you can't feel any friction. Amazing bearing technology. I have faith in the guys that designed the piece, my neighbor's new Z06/z07 Stingray has a CSC, and in just a few trips to the track guess what? His CSC started failing! (or rather his clutch pedal failed to return to top/start position). So he cleaned out his Filthy black clutch fluid and it's OK now. Treat this things right - no race car - and they'll treat you right. I would rather have the clutch fork myself though. Last edited by Fountainhead; 08-08-2014 at 07:32 PM.