[Z06] STRANGE PROBLEM AGAIN. where to get an uprated clutch master?
05-02-2011, 02:11 PM
#21
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The clutch actuator (slave) very rarely fails. But that doesn't mean dealers don't urge swapping them. That's because changing the actuator costs 4x to 5x the price of swapping just the master cylinder, which is 100x more likely the problem area.
For the owner, a needless swap of the actuator poses risk of improper re-assembly.
In the event of pedal issues that aren't resolved by cleaning up the clutch fluid, I alway recommend changing just the master, then verifying status before ponying up the bigger bucks for a new actuator.
That recommendation changes in the event the entire clutch is swapped out. In that case all the clutch hydraulic elements should be changed too. Start fresh.
Ranger
For the owner, a needless swap of the actuator poses risk of improper re-assembly.
In the event of pedal issues that aren't resolved by cleaning up the clutch fluid, I alway recommend changing just the master, then verifying status before ponying up the bigger bucks for a new actuator.
That recommendation changes in the event the entire clutch is swapped out. In that case all the clutch hydraulic elements should be changed too. Start fresh.
Ranger
05-02-2011, 05:54 PM
#22
Burning Brakes
Exact same happened to me in my '07 Z06 down here in Australia over the Easter weekend, at the National Corvette Convention.
I was drag racing at the track events picking fights with a Callaway, and two ZR1's.
Car was idling for a long period of time during waiting my turn for runs.
Had about 6 runs in all, on my last I hit the clutch pedal to select third, and it stuck to the floor.
Efforts to raise pedal resulted in exactly your stated syptoms.
Turned out a little valve had popped off the end of the m/cylinder piston. No parts were needed, it was just cleaned, checked and reassembled, and then reinstalled back into the car.
First time my car has been used in 'anger', and has just 4k miles on her.
I am now asking myself whether the factory unit is up to the job.
Ross
I was drag racing at the track events picking fights with a Callaway, and two ZR1's.
Car was idling for a long period of time during waiting my turn for runs.
Had about 6 runs in all, on my last I hit the clutch pedal to select third, and it stuck to the floor.
Efforts to raise pedal resulted in exactly your stated syptoms.
Turned out a little valve had popped off the end of the m/cylinder piston. No parts were needed, it was just cleaned, checked and reassembled, and then reinstalled back into the car.
First time my car has been used in 'anger', and has just 4k miles on her.
I am now asking myself whether the factory unit is up to the job.
Ross
05-03-2011, 01:33 PM
#23
Exact same happened to me in my '07 Z06 down here in Australia over the Easter weekend, at the National Corvette Convention.
I was drag racing at the track events picking fights with a Callaway, and two ZR1's.
Car was idling for a long period of time during waiting my turn for runs.
Had about 6 runs in all, on my last I hit the clutch pedal to select third, and it stuck to the floor.
Efforts to raise pedal resulted in exactly your stated syptoms.
Turned out a little valve had popped off the end of the m/cylinder piston. No parts were needed, it was just cleaned, checked and reassembled, and then reinstalled back into the car.
First time my car has been used in 'anger', and has just 4k miles on her.
I am now asking myself whether the factory unit is up to the job.
Ross
I was drag racing at the track events picking fights with a Callaway, and two ZR1's.
Car was idling for a long period of time during waiting my turn for runs.
Had about 6 runs in all, on my last I hit the clutch pedal to select third, and it stuck to the floor.
Efforts to raise pedal resulted in exactly your stated syptoms.
Turned out a little valve had popped off the end of the m/cylinder piston. No parts were needed, it was just cleaned, checked and reassembled, and then reinstalled back into the car.
First time my car has been used in 'anger', and has just 4k miles on her.
I am now asking myself whether the factory unit is up to the job.
Ross
its been close to a year if not a year (sorry i'm too lazy to check my first post about it right now) and there were no signs at all of any problems... until Easter weekend and it happened again, exactly the same as last time.
now i'm afraid to take the car out in this summer heat where it may get stuck in traffic idling and soaking up heat...
go figure.
05-15-2011, 03:55 PM
#25
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