Is this a Clutch Hydraulics problem?
Thread Starter
Instructor
Joined: Jun 2006
Posts: 124
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From: Paxton IL
Is this a Clutch Hydraulics problem?
I recently replaced my clutch on my 4+3 87 Corvette. Everything was great at first. Now over that past few months my clutch pedal travel has become very strange. For the first 3 or 4 inches of travel it feels as if is not engaging anything, then you feel the resistance the last couple of inches. Also, my clutch take-up is VERY close to the floor. It feels as if all the clutch action occurs in the first couple of inches off the floorboard.
I also feel as if my clutch is starting to slip on full throttle runs. BTW, the overdrive works great.
I have searched the forums. And any help is appreciated!
Imtrumpeter
I also feel as if my clutch is starting to slip on full throttle runs. BTW, the overdrive works great.
I have searched the forums. And any help is appreciated!
Imtrumpeter
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
If your clutch is new the hydraulics are the first place Id look. bet you are losing fluid....Look up under the dash, any moisture on the firwall or the carpet> Same with the slave under the car. Id replace them both and be done with it.
Team Owner
Joined: Aug 2004
Posts: 22,303
Likes: 216
From: Sussex,Wi
2023 Corvette of the Year Finalist - Unmodified
2022 C3 of the Year Winner - Unmodified
Also, my clutch take-up is VERY close to the floor. It feels as if all the clutch action occurs in the first couple of inches off the floorboard.
I also feel as if my clutch is starting to slip on full throttle runs. BTW, the overdrive works great.
I have searched the forums. And any help is appreciated!
Imtrumpeter
I also feel as if my clutch is starting to slip on full throttle runs. BTW, the overdrive works great.
I have searched the forums. And any help is appreciated!
Imtrumpeter
Sounds like you got air in the slave cylinder.
I'll look for the thread, but what I did was remove the slave mounting bolts, pulled it out of the bell housing enough to get at the pin and watch the valve slide. Took the top off the master reservoir, then pushed the slave cylinder all the way in by hand. This removed all the air in the slave.
Works like new, great pick-up, a little higher than half-way in travel downwards.
Edit;
Here's the thread.
http://forums.corvetteforum.com/show....php?t=1754882
Last edited by mikeb; Aug 29, 2007 at 11:20 PM.
Thread Starter
Instructor
Joined: Jun 2006
Posts: 124
Likes: 0
From: Paxton IL
Sounds like you got air in the slave cylinder.
I'll look for the thread, but what I did was remove the slave mounting bolts, pulled it out of the bell housing enough to get at the pin and watch the valve slide. Took the top off the master reservoir, then pushed the slave cylinder all the way in by hand. This removed all the air in the slave.
I'll look for the thread, but what I did was remove the slave mounting bolts, pulled it out of the bell housing enough to get at the pin and watch the valve slide. Took the top off the master reservoir, then pushed the slave cylinder all the way in by hand. This removed all the air in the slave.
I was going to try bleeding it, but did not have any fresh brake fliud. I'll pick some up and try it tonight, but I am assuming that the master is bad. Am I going down the right road?Imtrumpeter
Team Owner
Joined: Aug 2004
Posts: 22,303
Likes: 216
From: Sussex,Wi
2023 Corvette of the Year Finalist - Unmodified
2022 C3 of the Year Winner - Unmodified
Either the Master or the Slave.
I would think you'd have a puddle of fluid somewhere. If it's the master, check your carpeting down in the left foot area (this is where mine leaked).
If it's the slave, you should see the leak under the bell housing L.H. side.
Also, if you did remove the slave, make sure the pin is in between the slave cylinder and clutch throw-out arm. That's the only thing I can think of that would give no resistance.
Last edited by mikeb; Aug 31, 2007 at 07:44 AM.
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