Clutch wouldn't release
06-22-2008, 04:34 PM
#1
Clutch wouldn't release I put a Textralia OZ700 in a friend's car with a McLeod master cylinder. Everything was working perfect. Car drive great and shifted perfect. Then after about 5 passes at the drag strip the clutch wouldn't release. Clutch pedal felt normal and with the car off the transmission shifted fine. Start the car and try to put it in first gear and the car would want to start moving forward. Towed the car home and when we got home everything worked fine. I was so pissed, I like WTF. I thought that maybe a spring came off the clutch disk and got stuck between the pressure plate and clutch disk, so I pulled the transmission and took the clutch out and everything looks perfectly fine. I am at a lose at what could of happened. Could the slave cylinder possibly be bad? Could when things get hot could the slave cylinder just stop working? Any suggestions on what might of happened would be greatly appreciated.
06-23-2008, 09:56 AM
#3
Since the issue seems to be heat related it is much more likely that you all are having an issue with boiling the hydraulic fluid (if it were a plate problem it wouldn't be intermittent). This is not abnormal in F-body's as I am sure you know. Check the hydraulic fluid to begin. If it is dark or discolored then it needs to be replaced...I suggest using a fluid with a higher boiling point than stock. Make sure the hydraulic lines are wrapped with a heat resistent material and that they are routed behind the heat-shield as they pass the headers. Let me know what you find and we can continue trouble shooting from there. Thanks!