Clutch linkage problems..
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Clutch linkage problems..
I have posted about this 2 - 3 months ago.. My clutch linkage (Z-bar or Cross Shaft) can be moved sideways. It's supposed to be tight.. I know that there's a spring that's supposed to be inside which might be damaged or missing and cause that the linkage isn't tight.. but I don't know.. I only know that the linkage is only supposed to pivot but not move sideways... Did anybody have a similar problem? What can I do to fix it?
Thanks in advance....
Olivier
Thanks in advance....
Olivier
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (tshort)
Wish I could help but once you do get it fixed you better get some good video of you breaking into the 11's!!!
:thumbs:
:thumbs:
[Modified by GrandSportC3, 5:39 PM 4/9/2003]
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (GrandSportC3)
I'm 100% certain that I will be in the 11's as soon as I'm able to shift...
I already had a 12.19 with a 1.75 60' time... My best 60' time so far was 1.591... which would have been already enough to hit 11's when I was running 12.19.... I just have to get in one good run without shifting problems...
I already had a 12.19 with a 1.75 60' time... My best 60' time so far was 1.591... which would have been already enough to hit 11's when I was running 12.19.... I just have to get in one good run without shifting problems...
Melting Slicks
Joined: Nov 2001
Posts: 2,659
Likes: 7
From: Katy (Houston) TX
CI 7-8 Veteran
Re: Clutch linkage problems.. (GrandSportC3)
Still enjoying that engine? I'm still waiting on mine. I just talked to Mark today and they are putting some developement Canfield heads on it and the first one they built dynoed at just over 500 hp and 500 ft-lbs!!! :eek:
I can't decide if I want to slap some drag radials on it and see if I can get some decent times. I know if I do I may have to spend more money on replacing broken parts. I'll probably try it first at the track with my street tires and see what I can do. If I can get some decent times I'll probably quit for a while.....but then again speed is addicting. We'll see.
OK, this thread hijacking is over, you may return to your regualarly scheduled programming. :cheers:
[Modified by tshort, 4:44 PM 4/9/2003]
I can't decide if I want to slap some drag radials on it and see if I can get some decent times. I know if I do I may have to spend more money on replacing broken parts. I'll probably try it first at the track with my street tires and see what I can do. If I can get some decent times I'll probably quit for a while.....but then again speed is addicting. We'll see.
OK, this thread hijacking is over, you may return to your regualarly scheduled programming. :cheers:
[Modified by tshort, 4:44 PM 4/9/2003]
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (tshort)
Still enjoying that engine? I'm still waiting on mine. I just talked to Mark today and they are putting some developement Canfield heads on it and the first one they built dynoed at just over 500 hp and 500 ft-lbs!!! :eek:
I can't decide if I want to slap some drag radials on it and see if I can get some decent times. I know if I do I may have to spend more money on replacing broken parts. I'll probably try it first at the track with my street tires and see what I can do. If I can get some decent times I'll probably quit for a while.....but then again speed is addicting. We'll see.
OK, this thread hijacking is over, you may return to your regualarly scheduled programming. :cheers:
I can't decide if I want to slap some drag radials on it and see if I can get some decent times. I know if I do I may have to spend more money on replacing broken parts. I'll probably try it first at the track with my street tires and see what I can do. If I can get some decent times I'll probably quit for a while.....but then again speed is addicting. We'll see.
OK, this thread hijacking is over, you may return to your regualarly scheduled programming. :cheers:
Advanced
Joined: Apr 2002
Posts: 89
Likes: 0
From: MARLTON NJ
Re: Clutch linkage problems.. (GrandSportC3)
GS is your ball stud screwed into the block, i have the same problem with mine. the threads in the block are messed up.Anyone have a cure for THIS. :confused:
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (WHTSHARK)
GS is your ball stud screwed into the block, i have the same problem with mine. the threads in the block are messed up.Anyone have a cure for THIS. :confused:
The fix for a messed up thread would be a helicoil...
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Re: Clutch linkage problems.. (GrandSportC3)
I remember some felt packing washers took up some space on my '74 I think behind the ball pivots. Also my replacement cross bar has a greese zerk to load the bar up and may contribute somewhat to stability. ;)
Le Mans Master
Joined: Aug 2000
Posts: 6,362
Likes: 7
From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Re: Clutch linkage problems.. (GrandSportC3)
There isn't a spring in the Z-bar (bell crank) but there is supposed to be a large snap ring. On the frame rail side there is a nearly identical ball, as the one that threads into the block, in the bell crank. It has two nylon washers that act as a bearing. One inserts, then the ball goes in, then the next and finally a snap ring holds them all in. Once the snap ring is in there will be no side-to-side movement of the bell crank. Did you make sure the nut that tightens the ball stud on the frame side is tight? If it is then you may be missing the snap ring. Remove the linkage and the bell crank and disassemble it. There is a good chance the snap ring is gone or dislodged (or maybe the nylon bearings have disintegrated. Let us know what you find.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (cardo0)
I remember some felt packing washers took up some space on my '74 I think behind the ball pivots. Also my replacement cross bar has a greese zerk to load the bar up and may contribute somewhat to stability. ;)
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (burners)
There isn't a spring in the Z-bar (bell crank) but there is supposed to be a large snap ring. On the frame rail side there is a nearly identical ball, as the one that threads into the block, in the bell crank. It has two nylon washers that act as a bearing. One inserts, then the ball goes in, then the next and finally a snap ring holds them all in. Once the snap ring is in there will be no side-to-side movement of the bell crank. Did you make sure the nut that tightens the ball stud on the frame side is tight? If it is then you may be missing the snap ring. Remove the linkage and the bell crank and disassemble it. There is a good chance the snap ring is gone or dislodged (or maybe the nylon bearings have disintegrated. Let us know what you find.
I will probably only disassemble it next week.. I will be out for the weekend and won't have time tomorrow or Friday... but I will keep you updated...
Safety Car
Joined: Aug 2000
Posts: 3,909
Likes: 26
From: Clymer PA
Re: Clutch linkage problems.. (GrandSportC3)
Olivier:
There is a spring that goes from Z-bar to the rod that hooks to the clutch fork, is that what you are referring to?
The Z-bar is greesable. When you say it moves side to side what do you mean? There should be a cushion that fits in with the Z-bar. There is a bracket on your frame rail where the Z-bar mounts, the cushion should go in between this bracket and the Z-bar. I would imagine some flat washers would work just as well at keeping the Z-bar from moving.
Good luck at the track, hope you crack out 11s. It's going to be another 2 weeks or so before I get my car straightened out to go to the track...I hope to be right there with you.
There is a spring that goes from Z-bar to the rod that hooks to the clutch fork, is that what you are referring to?
The Z-bar is greesable. When you say it moves side to side what do you mean? There should be a cushion that fits in with the Z-bar. There is a bracket on your frame rail where the Z-bar mounts, the cushion should go in between this bracket and the Z-bar. I would imagine some flat washers would work just as well at keeping the Z-bar from moving.
Good luck at the track, hope you crack out 11s. It's going to be another 2 weeks or so before I get my car straightened out to go to the track...I hope to be right there with you.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (bence13_33)
Olivier:
There is a spring that goes from Z-bar to the rod that hooks to the clutch fork, is that what you are referring to?
The Z-bar is greesable. When you say it moves side to side what do you mean? There should be a cushion that fits in with the Z-bar. There is a bracket on your frame rail where the Z-bar mounts, the cushion should go in between this bracket and the Z-bar. I would imagine some flat washers would work just as well at keeping the Z-bar from moving.
Good luck at the track, hope you crack out 11s. It's going to be another 2 weeks or so before I get my car straightened out to go to the track...I hope to be right there with you.
There is a spring that goes from Z-bar to the rod that hooks to the clutch fork, is that what you are referring to?
The Z-bar is greesable. When you say it moves side to side what do you mean? There should be a cushion that fits in with the Z-bar. There is a bracket on your frame rail where the Z-bar mounts, the cushion should go in between this bracket and the Z-bar. I would imagine some flat washers would work just as well at keeping the Z-bar from moving.
Good luck at the track, hope you crack out 11s. It's going to be another 2 weeks or so before I get my car straightened out to go to the track...I hope to be right there with you.
I hope that this will fix my problem.
Regarding to my quest for 11's.. I was actually thinking in replacing my fuel pump with a electric fuel pump which should be another 10 HP or so (approx. .1 on the track)... and get the car tuned... I have solid lifers but have never adjusted my rocker arms so far.. I don't know how to adjust them myself to tight lash... I have never done that.. I'm sure that this would give me another 10 HP or so... I have never had the car professionally tuned... I still think that I can make it into 11's .. just by being able to shift..
The only problem will be traction.. The track that I'm planning to run on doesn't have too good traction.. I will need a very long burnout to get some grip...
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (bence13_33)
Thanks again Shane!!
I put some washers on the bar to keep it from moving!!! Drove 35 miles to work and it worked great!!!
:cheers:
Olivier
I put some washers on the bar to keep it from moving!!! Drove 35 miles to work and it worked great!!!
:cheers:
Olivier
Racer
Joined: Sep 2002
Posts: 385
Likes: 10
From: Baton Rouge La
Re: Clutch linkage problems.. (GrandSportC3)
Olivier:
I have solid lifers but have never adjusted my rocker arms so far.. I don't know how to adjust them myself to tight lash... I have never done that.. I'm sure that this would give me another 10 HP or so..
I have solid lifers but have never adjusted my rocker arms so far.. I don't know how to adjust them myself to tight lash... I have never done that.. I'm sure that this would give me another 10 HP or so..
tim
Le Mans Master
Joined: Aug 2000
Posts: 6,362
Likes: 7
From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Re: Clutch linkage problems.. (WillRace4Food)
Washers are ok for a temporary repair but that should not be a permanent fix. Did you use large (1/2" or so) washers and are they touching on the tube of the z-bar? If so you are getting metal-to-metal wear on the washers. The stud on the frame side has a flange that tightens up to the bracket. If washers interfere with that flange being tight then the entire z-bar will move front and back. So by fixing one problem you may create another. The nylon bearings (and snap ring) are what locate the z-bar and keep it from moving side to side.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Clutch linkage problems.. (tshort)
You're 11-bound now, Olivier. Go get em! :steering: