TKO manual clutch experts?
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
TKO manual clutch experts?
I put in my refreshed SBC and it drove nice just breaking it in town and highway and I parked it in my garage. Hundreds of nice shifts on two separate days. Now the clutch won't disengage even at max adjustment with your pedal on the floor. Arm moves back and forth and is still clipped on the pivot ball.
This motor and tranny was together before. So no parts changed.
This motor and tranny was together before. So no parts changed.
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I took apart the linkage today and it might that I don't have enough movement forward. It's a high end 1000 plus HP clutch... The clutch disk still had writing on both faces from years of abuse. My new motor is a 672 hp 434 Motown with a 22 pound SFI 168 tooth flywheel. I'm going to extend the throw and see if it works
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
The problem is with your clutch pedal on the floor and maximum adjustment it doesn't release the clutch completely. so when you shift into gear the tires start rotating. It's up off the floor
Pro
Joined: Jan 2016
Posts: 502
Likes: 103
From: Reno Nevada
Mine was similar. I ground on the pedal bracket a bit and took out the floormat on the drivers side and all is well. Just needed maybe 1/4" more throw.
Now, just wish I could get my Terminator happy, then I would be happy....
Now, just wish I could get my Terminator happy, then I would be happy....
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
Gkull, if you are using the stock corvette mechanical clutch pedal and rod system, I wonder if something like this is your issue?
https://www.corvetteforum.com/forums...vel-range.html
https://www.corvetteforum.com/forums...vel-range.html
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Gkull, if you are using the stock corvette mechanical clutch pedal and rod system, I wonder if something like this is your issue?
https://www.corvetteforum.com/forums...vel-range.html
https://www.corvetteforum.com/forums...vel-range.html
I have friend bringing a bore scope to see if we can figure out why the PP is NOT disengaging.
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Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I talked to ACT tech support and this fits our TKO 26 spline 5 speeds. Good for up to 700+ foot pounds of TQ and 1000+ hp. I can't figure out why mine is not releasing so it's tranny pull time.
https://www.advancedclutch.com/gm6-h...-street-sprung
https://www.advancedclutch.com/gm6-h...-street-sprung
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
FWIW I had a '66 with the same symptoms. Turned out the pedal itself was failing. I don't remember what part of the pedal cracked and bent, but over a period of a couple of weeks I lost most of my pedal travel. Solution was to buy a reproduction pedal.
