Clutch return spring
Thread Starter
Pro
Joined: Dec 2014
Posts: 699
Likes: 46
From: Charlotte NC
Clutch return spring
Fine tuning my clutch adjustment - why is the C3 clutch return spring design so backwards compared to all other GM cars? With the spring attached to the pedal rod part of the zbar, and hooked to the firewall, ALL the slop from each connection has to be "taken up" as you depress the clutch pedal. Every other Camaro or GTO I've had, the heavy return spring hooks to the fork tip, pulling forward and attached to somewhere on the frame. That way, all the slop is ALREADY taken up. Yes my clutch works fine but it would be greatly improved if the spring is modified to work like the others.
Is my vette stock?? HAHA
Joined: Oct 2015
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From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
no, pulling forward on the arm would pull the bearing off the clutch fingers. I had a 69 GTO and the engine sat so far forward that the clutch arm was way up by my feet. The Adjustment was made between the z arm and the clutch fork. The linkage seemed much shorter than the 68 vette I have. I remember because the tab on the frame broke off in traffic in downtown Atalnta Georgia. Luckily I was in front of a muffler shop and they welded it back on.
Last edited by Rescue Rogers; Jun 10, 2018 at 07:48 AM.
Le Mans Master
Joined: Oct 2006
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From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
The spring from the z-bar to the firewall is for return. There is another lighter spring from the fork to the lower part of the z-bar as an anti rattle spring.
Intermediate
Joined: Oct 2011
Posts: 44
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From: SANTA ROSA, CALIF
Here's the problem with high clutch bite in a nutshell (and man do I wish there was a way to engage the clutch nearer to floor):
We have more control engaging the clutch when our leg is nearly straight. Trying to engage a clutch at 1/2 or 3/4 height means your knee is really bent and the clutch is pushing against your knee making a smooth engagement more difficult. Think about doing squats with weights. Going part way down and trying to straighten is easier than trying to straighten with bent knees, plus the travel is greater.
So nobody knows of an adjustment? Sliding my seat back means I have less control of the throttle.
We have more control engaging the clutch when our leg is nearly straight. Trying to engage a clutch at 1/2 or 3/4 height means your knee is really bent and the clutch is pushing against your knee making a smooth engagement more difficult. Think about doing squats with weights. Going part way down and trying to straighten is easier than trying to straighten with bent knees, plus the travel is greater.
So nobody knows of an adjustment? Sliding my seat back means I have less control of the throttle.
