Clutch pedal spring; Final verdict?
Drifting
Joined: Sep 2004
Posts: 1,551
Likes: 4
From: Livingston Texas
i respectfully disagree. if you have the spring out try putting it back in. you will notice it is impossible to put it back on if the clutch pedal is all the way up, i couldn't even stretch that spring that far even using a screw driver as leverage. now have someone push the pedal all the way down and then try to put the spring back, you will see you wouldn't have to stretch that spring that much compare to when the pedal is all the way up. 
does someone have a picture of c5 & c6 spring side by side they can post? thanks
does someone have a picture of c5 & c6 spring side by side they can post? thanks
When I changed the master cylinder on mine the spring held the pedal up. It only effects the last inch or so of travel but it does hold it up.
Drifting
Joined: Jul 2005
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From: az
http://forums.corvetteforum.com/show....php?t=1608505
http://forums.corvetteforum.com/show....php?t=1481786
Last edited by cbrf4i1; Jun 1, 2007 at 01:20 AM.
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Melting Slicks
Joined: Nov 2003
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From: Northern CA
The spring can hold the pedal up near the top of the stroke and help keep it down near the middle and bottom end of the stroke.
It's done by laying out the geometry so that the spring goes over center during it's stroke. Some short distance from the pedal up position, the action line of the spring is through the clutch pivot and it exerts no up or down force on the pedal. Above that position it lifts the pedal, below that it tries to pull the pedal down.
A spring is needed to pull the pedal to the top because if the master cylinder isn't fully retracted, the reservoir stays shut off from the hydraulic circuit. This can cause problems.
A weaker spring is a better long term solution than no spring.
It's done by laying out the geometry so that the spring goes over center during it's stroke. Some short distance from the pedal up position, the action line of the spring is through the clutch pivot and it exerts no up or down force on the pedal. Above that position it lifts the pedal, below that it tries to pull the pedal down.
A spring is needed to pull the pedal to the top because if the master cylinder isn't fully retracted, the reservoir stays shut off from the hydraulic circuit. This can cause problems.
A weaker spring is a better long term solution than no spring.
Drifting
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
The spring can hold the pedal up near the top of the stroke and help keep it down near the middle and bottom end of the stroke.
It's done by laying out the geometry so that the spring goes over center during it's stroke. Some short distance from the pedal up position, the action line of the spring is through the clutch pivot and it exerts no up or down force on the pedal. Above that position it lifts the pedal, below that it tries to pull the pedal down.
A spring is needed to pull the pedal to the top because if the master cylinder isn't fully retracted, the reservoir stays shut off from the hydraulic circuit. This can cause problems.
A weaker spring is a better long term solution than no spring.
It's done by laying out the geometry so that the spring goes over center during it's stroke. Some short distance from the pedal up position, the action line of the spring is through the clutch pivot and it exerts no up or down force on the pedal. Above that position it lifts the pedal, below that it tries to pull the pedal down.
A spring is needed to pull the pedal to the top because if the master cylinder isn't fully retracted, the reservoir stays shut off from the hydraulic circuit. This can cause problems.
A weaker spring is a better long term solution than no spring.
Instructor
Joined: Oct 2000
Posts: 180
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From: Coral Springs, Florida, USA Florida
Drifting
Joined: Jul 2005
Posts: 1,533
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From: az
yes it is very easy to remove the spring, it takes me like 5 sec. putting the spring on, you best bet is to have the pedal all the way down, so the spring is getting stetch the least / easier to put on. leave the pedal all the way up would be the hardest way to put the spring back on.
I can't wait to feel the difference. The clutch engagement is my only complaint about these cars....Feels to much like ON/OFF if you ask me.
Safety Car
Joined: Jul 2006
Posts: 4,647
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From: Objects in your mirror are losing , Long Island, NY
St. Jude Donor '08
Half my spring broke like 3 months ago while was driving. The other half is still intact. My question is, "To change it over to c5 spring" will the dealer install one on the c6?
SUBVETTE
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From: San Diego CA
Instructor
Joined: Jan 2006
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From: Sioux City Iowa
St. Jude Donor '06
I had the C5 spring laying around for a few weeks, and this thread reminded me that I had not done it. As was mentioned, with the clutch on the floor, the original can be popped out in a few seconds. Putting the lighter C5 spring in was a bit more of a project. I finally got a bit of brain going and wired the loop end that fits into the notch at the rear of the clutch pedal arm down temporarily so that it could not slip out while reinserting the tips into the holes in the assembly frame. It helped a lot. And, in my humble opinion, it is so much improved as to be unbelievable. Totally smooth with much better control.Thanks for the suggestion.
Race Director
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From: Virginia Bch VA
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St. Jude Donor '06
Race Director
Joined: Oct 2004
Posts: 10,516
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From: Virginia Bch VA
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Drifting
Joined: Jun 2007
Posts: 1,757
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From: Middletown DE
I had the C5 spring laying around for a few weeks, and this thread reminded me that I had not done it. As was mentioned, with the clutch on the floor, the original can be popped out in a few seconds. Putting the lighter C5 spring in was a bit more of a project. I finally got a bit of brain going and wired the loop end that fits into the notch at the rear of the clutch pedal arm down temporarily so that it could not slip out while reinserting the tips into the holes in the assembly frame. It helped a lot. And, in my humble opinion, it is so much improved as to be unbelievable. Totally smooth with much better control.Thanks for the suggestion.
