working out stiff clutch pedal on 68 barracuda
Posted: Mon May 31, 2010 1:45 pm
-I have 68 Barracuda project that has a local clutch rebuilders high performance Borg & Beck pressure plate rated with a 3200# spring load.
-the clutch pedal is way stiff--and doesn't pull back up into the freeplay range----meaning it's riding on the throwout bearing unless you reach under and pull the pedal up with your toe.
-I wondering if anybody might have a link to and/or pictures or schematics of the pedal & pedal hanger assembly, and know something about the functionality of the pedal assembly and cross bar from frame to the engine etc.
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-seems like on some of the older Chevelles of that era they had a rear stiff spring that was mounted to a pivot down onto the pedal arm a ways.
-then had another pivot a shorter distance above the pedals pivot arm bushing.
-this spring would be mounted in line with the pedal arm, so that when the pedal was positioned to apply the throw out bearing to the clutch fingers the three pivot points would all be in line.
-this would then pull the pedal upwards during freeplay---and very much help pull the pedal downward during the time you'd be pushing against the stiff clutch.
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-this car has been modified somewhat in the pedal mount & pivot area.
-I'd like to know if the Barracuda was or can be "power assisted" by a stiff cam over spring like the older Chevelles--and if so maybe get an idea of that power assist spring's rate and length etc----and if that spring might be available somewhere.
-the clutch pedal is way stiff--and doesn't pull back up into the freeplay range----meaning it's riding on the throwout bearing unless you reach under and pull the pedal up with your toe.
-I wondering if anybody might have a link to and/or pictures or schematics of the pedal & pedal hanger assembly, and know something about the functionality of the pedal assembly and cross bar from frame to the engine etc.
--------------------------------------------------------
-seems like on some of the older Chevelles of that era they had a rear stiff spring that was mounted to a pivot down onto the pedal arm a ways.
-then had another pivot a shorter distance above the pedals pivot arm bushing.
-this spring would be mounted in line with the pedal arm, so that when the pedal was positioned to apply the throw out bearing to the clutch fingers the three pivot points would all be in line.
-this would then pull the pedal upwards during freeplay---and very much help pull the pedal downward during the time you'd be pushing against the stiff clutch.
------------------------------------------------------------
-this car has been modified somewhat in the pedal mount & pivot area.
-I'd like to know if the Barracuda was or can be "power assisted" by a stiff cam over spring like the older Chevelles--and if so maybe get an idea of that power assist spring's rate and length etc----and if that spring might be available somewhere.