Master Cylinder Issue?
#1
New Member
Thread Starter
Master Cylinder Issue?
Hi All,
While at the track on Sunday, May 6th, I was having a clutch pedal issue. It was as follows:
Heading into turn 3 @~125mph 5th gear, engage clutch pedal, downshift, release clutch pedal **only comes back ~50%.**
Prior to turn 3, I am at 125-135mph sustained for about 10 seconds (AutoClub Speedway Roval Course). I am reading that it could be my OEM master cylinder not handing the heat? Any thoughts?
This ONLY happened on turn 3 after sustained speed in excess of 125mph.
While at the track on Sunday, May 6th, I was having a clutch pedal issue. It was as follows:
Heading into turn 3 @~125mph 5th gear, engage clutch pedal, downshift, release clutch pedal **only comes back ~50%.**
Prior to turn 3, I am at 125-135mph sustained for about 10 seconds (AutoClub Speedway Roval Course). I am reading that it could be my OEM master cylinder not handing the heat? Any thoughts?
This ONLY happened on turn 3 after sustained speed in excess of 125mph.
#3
New Member
Thread Starter
I will bleed it this week and see if that helps. Next track day is in two weeks.
#4
New Member
iTrader: (2)
I would give it a good bleeding and start there since it would be the cheapest fix. I like Motul 5.1 since it has a higher boiling point than the OEM DOT 3. I know some that track their cars use RBF600, but I believe you need to change it more frequently.
If bleeding it doesn't work, then you've eliminated that as an issue. When I had pedal drop issues, I changed out the Master for the Wilwood HD and it solved the problem you're having.
If bleeding it doesn't work, then you've eliminated that as an issue. When I had pedal drop issues, I changed out the Master for the Wilwood HD and it solved the problem you're having.
The following users liked this post:
bcoffin23 (05-10-2018)
#5
New Member
Thread Starter
I would give it a good bleeding and start there since it would be the cheapest fix. I like Motul 5.1 since it has a higher boiling point than the OEM DOT 3. I know some that track their cars use RBF600, but I believe you need to change it more frequently.
If bleeding it doesn't work, then you've eliminated that as an issue. When I had pedal drop issues, I changed out the Master for the Wilwood HD and it solved the problem you're having.
If bleeding it doesn't work, then you've eliminated that as an issue. When I had pedal drop issues, I changed out the Master for the Wilwood HD and it solved the problem you're having.
#7
New Member
iTrader: (1)
I had the "typical" clutch pedal issue in my 06, same symptoms as you described in track days and also during very hot days in street driving (can be 120 degrees where i live).
How I fixed mine:
1. Replaced slave
2. Bleed with RBF600
3. SS clutch line
Car has 100k miles and after several track days in southern california heat the issue has not come back.
How I fixed mine:
1. Replaced slave
2. Bleed with RBF600
3. SS clutch line
Car has 100k miles and after several track days in southern california heat the issue has not come back.
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