clutch pedal adjustment
02-18-2010, 11:12 PM
#1
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clutch pedal adjustment i have a 1995 lt1 firebird with the t56. is the clutch pedal adjustable my clutch can be released by bareely touching it with my big toe. the cluch is also very worn out so maybe that could also be the cause??
03-04-2010, 10:53 AM
#6
I have found that LT1 style clutches, especially if you have an performance aftermarket clutch, have a very high release point. There is nothing you can do with the stock SC or MC to adjust the pedal height and shimming the SC will do nothing because the the SC will simply adapt to the change and you have accomplished nothing. Shimming the SC does make a difference in LS1 clutches though.
I also dont believe that a "high" pedal is a sure fire indicator that the clutch is going bad. I clutch disk that has no marcel springs always has a high pedal even when brand new. A stock clutch disk with marcel springs has the low pedal because the marcels are decompressing while the pedal is released. FWIW the marcel springs are used on stock clutch disks to reduce chatter but the hinder the clamping force of the clutch because they fight the pressure of the pressure plate. Hince the reason a performance clutch does not use marcel springs.
I made an adjustable clutch stopper that limits the pdal travel for my clutch pedal and eliminates all of the dead pedal travel to the floor. My clutch has half of the travel it had with the stock clutch and makes for much faster and positive shifts plus it makes normal driving operation much easier because you dont have to "hunt" for the sweet spot in all of the dead area.
I have a couple of these left for sale if anyone is interested:
https://ls1tech.com/forums/parts-cla...r-limiter.html
I also dont believe that a "high" pedal is a sure fire indicator that the clutch is going bad. I clutch disk that has no marcel springs always has a high pedal even when brand new. A stock clutch disk with marcel springs has the low pedal because the marcels are decompressing while the pedal is released. FWIW the marcel springs are used on stock clutch disks to reduce chatter but the hinder the clamping force of the clutch because they fight the pressure of the pressure plate. Hince the reason a performance clutch does not use marcel springs.
I made an adjustable clutch stopper that limits the pdal travel for my clutch pedal and eliminates all of the dead pedal travel to the floor. My clutch has half of the travel it had with the stock clutch and makes for much faster and positive shifts plus it makes normal driving operation much easier because you dont have to "hunt" for the sweet spot in all of the dead area.
I have a couple of these left for sale if anyone is interested:
https://ls1tech.com/forums/parts-cla...r-limiter.html
03-04-2010, 11:04 AM
#7
Well.. Mine hasnt always been at the top of the pedal... I took my car out last friday night and ran several cars and after the last couple of run, I noticed the pedal was up high(It was also my first night to Spray the car, so it was the most power that clutch has seen)
Im not sure If I should try anything...?
Im not sure If I should try anything...?
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01-30-2013, 07:55 PM
#9
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Talk about restarting a dead thread.... but quick question: I recently installed a Competition Clutch Stage 3 and the pedal feels very soft for the first inch or so of travel... It does grab well, very high on the pedal, which I don't mind, but would anything cause it to be soft and squishy feeling at around 100% engaged? (pedal not pressed at all)
02-01-2013, 06:42 PM
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It's got a new slave, and new hydraulics that have been bled. I'll probably just bleed it again but I just wanted to check to make sure nothing else could be causing the problem. Thanks for the help!
05-15-2017, 08:55 AM
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Clutch pedal adjuster lt1 I have found that LT1 style clutches, especially if you have an performance aftermarket clutch, have a very high release point. There is nothing you can do with the stock SC or MC to adjust the pedal height and shimming the SC will do nothing because the the SC will simply adapt to the change and you have accomplished nothing. Shimming the SC does make a difference in LS1 clutches though.
I also dont believe that a "high" pedal is a sure fire indicator that the clutch is going bad. I clutch disk that has no marcel springs always has a high pedal even when brand new. A stock clutch disk with marcel springs has the low pedal because the marcels are decompressing while the pedal is released. FWIW the marcel springs are used on stock clutch disks to reduce chatter but the hinder the clamping force of the clutch because they fight the pressure of the pressure plate. Hince the reason a performance clutch does not use marcel springs.
I made an adjustable clutch stopper that limits the pdal travel for my clutch pedal and eliminates all of the dead pedal travel to the floor. My clutch has half of the travel it had with the stock clutch and makes for much faster and positive shifts plus it makes normal driving operation much easier because you dont have to "hunt" for the sweet spot in all of the dead area.
I have a couple of these left for sale if anyone is interested:
https://ls1tech.com/forums/parts-cla...r-limiter.html
I also dont believe that a "high" pedal is a sure fire indicator that the clutch is going bad. I clutch disk that has no marcel springs always has a high pedal even when brand new. A stock clutch disk with marcel springs has the low pedal because the marcels are decompressing while the pedal is released. FWIW the marcel springs are used on stock clutch disks to reduce chatter but the hinder the clamping force of the clutch because they fight the pressure of the pressure plate. Hince the reason a performance clutch does not use marcel springs.
I made an adjustable clutch stopper that limits the pdal travel for my clutch pedal and eliminates all of the dead pedal travel to the floor. My clutch has half of the travel it had with the stock clutch and makes for much faster and positive shifts plus it makes normal driving operation much easier because you dont have to "hunt" for the sweet spot in all of the dead area.
I have a couple of these left for sale if anyone is interested:
https://ls1tech.com/forums/parts-cla...r-limiter.html
