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Need help with drill mod (clutch)

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Old 06-12-2006, 06:02 PM
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95jersey
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Default Need help with drill mod (clutch)

Can someone describe the drill mod in some detail. Interestingly, I had the problem about 2 years ago, replaced the MC and it went away. We'll it came back and on the Pocono East course the other week, I was stuck in 3rd the whole time.

I drove it on the street afterwards and hot or cold, when I nail the throttle, sure enough the pedal sticks to the floor and I can't switch gears.

Took it to the dealer to have them fix again, but I have heard the "drill mod" solve the problem quickly and easily.

If not, does bleeding the fluid help ease the problem as a temporary fix? I have the SCCA track event THIS Friday and don't want to get stuck in 3rd gear on the long course.

Last edited by 95jersey; 06-12-2006 at 06:06 PM.
Old 06-13-2006, 12:34 AM
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MrEracer
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Forget the drill mod. The problem is with the clutch. I have had great success with the RAM 900 series clutch in my road racing C5. You may also need a slave spacer (supplied by RAM).
In my experience I have found that the OEM clutch or any OEM replacement clutch (LUK) will develop the clutch on the floor syndrome sooner or later...
BTW, Arizona Team Corvette Racers took 1,2 and 3 at Las Vegas this past week end on RAM clutches...
Shirl Dickey

Disclaimer: I have no affiliation with RAM Clutches.
Old 06-13-2006, 08:16 AM
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95jersey
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We'll that really sucks, because I spent $700 buying a LUK Stage II Clutch with aluminum flywheel. I would really hate to have to ditch the whole set up. It's only got about 6000 miles on it?!?! Is there any band-aid fix?
Old 06-13-2006, 08:47 AM
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Wicked Weasel
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I took the spring out that is connected to the clutch. It seemed to help with the sticky clutch pedal, but it was only a temporary fix.

I have heard that changing the fluid also helps.
Old 06-13-2006, 09:44 AM
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MrEracer
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The band-aid fix is an adjustable master cylinder with a metal body. The problem is that high system pressures will distort the plastic master cylinder which allows the fluid to bleed past the seal leaving the peddle on the floor and the clutch still engaged. Aftermarket clutches have a higher mechanical advantage in the release mechanism which results in lower hydraulic system pressures.
I get flamed every time I put this idea up but I have one question for the flamers. If the peddle stays on the floor, where did the fluid go?
Shirl Dickey

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