ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 04-06-2010   #11
Chris_32212
 
Join Date: Sep 2008
Location: Vancouver
Posts: 224
Default Re: Throwout bearing.

I feel your transmission woes brother! I had a clutch fork bend backwards bad enough to crack. I used the opportunity to upgrade my ehaust from the headers back, upgraded to a stage two clutch and a fidanza flywheel. When I got the car back from the shop, the cags had defeater wasn't installed and I was forced to do a bunch of 1st to 4th shifts and now it grinds when I try to shift into 4th. I was laid off and lost my house last year and am a full time college student so my Z just sits now, broken and bruised with no end in sight.

Chris
__________________
[SIZE=1]1993 Corvette ZR-1 #137, 1990 Yellow 6speed coupe, and 1991 6speed coupe.[/SIZE]
Chris_32212 is offline   Reply With Quote
Old 04-06-2010   #12
rhipsher
 
rhipsher's Avatar
 
Join Date: Aug 2008
Location: Houston 90 Red ZR-1
Posts: 2,320
Default Re: Throwout bearing.

Quote:
Originally Posted by Chris_32212 View Post
I feel your transmission woes brother! I had a clutch fork bend backwards bad enough to crack. I used the opportunity to upgrade my ehaust from the headers back, upgraded to a stage two clutch and a fidanza flywheel. When I got the car back from the shop, the cags had defeater wasn't installed and I was forced to do a bunch of 1st to 4th shifts and now it grinds when I try to shift into 4th. I was laid off and lost my house last year and am a full time college student so my Z just sits now, broken and bruised with no end in sight.

Chris
Now that really sucks. Loosing the house. This econemy blows. Another one of my Z friends just got laid off thursday. It sucks bad. There may be more of us collecting aluminum cans pretty soon.
rhipsher is offline   Reply With Quote
Old 04-06-2010   #13
jonszr1
 
jonszr1's Avatar
 
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
Default Re: Throwout bearing.

rick when you do get her apart ck the pivot ball for the fork and the fork for wear
jonszr1 is offline   Reply With Quote
Old 04-06-2010   #14
rhipsher
 
rhipsher's Avatar
 
Join Date: Aug 2008
Location: Houston 90 Red ZR-1
Posts: 2,320
Default Re: Throwout bearing.

I will. But three times in 3 years. That's one transmission pull a year. And I knew two weeks before it happened that something was getting ready to go down with it. When I would pull up to the light and leave it in 1st gear even with the clutch pressed all the way down it felt like it was trying to pull as if the clutch was slightly engaged. That aint normal. And I started smelling my clutch a little more than usual. Once I get up in there I'll double check all the flywheel bolts and crank bolts to make sure everything is still torqued properly. Either way I know the drill. I'll have to change my user name from rhipsher to ZFRick.
Actually I'm leaning toward the Spec stage 3 plus. Its way overkill for what I have now. But considering that within the next 5 years it's going to Lingenfelter for the 415 build I'll already be set with a clutch thats good for 800hp and still streetable. http://www.lmperformance.com/spec.asp

Last edited by rhipsher; 04-06-2010 at 05:16 PM.
rhipsher is offline   Reply With Quote
Old 04-08-2010   #15
Ccmano
 
Ccmano's Avatar
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
Default Re: Throwout bearing.

Quote:
Originally Posted by rhipsher View Post
I will. But three times in 3 years. That's one transmission pull a year. And I knew two weeks before it happened that something was getting ready to go down with it. When I would pull up to the light and leave it in 1st gear even with the clutch pressed all the way down it felt like it was trying to pull as if the clutch was slightly engaged. That aint normal. And I started smelling my clutch a little more than usual. Once I get up in there I'll double check all the flywheel bolts and crank bolts to make sure everything is still torqued properly. Either way I know the drill. I'll have to change my user name from rhipsher to ZFRick.
You may have hit on something here. Three times in 3 years makes it highly suspect that there is something else going on that causes this failure. The odds of getting new 3 bearings to fail in the same way 3 times in a row must be astronomical! Start buying lottery tickets...
My guess is that there is an issue with the clutch master and/or slave cylinders. Probably allowing only partial disengagement of the clutch disc and thereby damaging the bushing or at least something to that effect. Be careful you don't end up with a worn out 2nd gear syncro as well. If it were me I'd be looking a little deeper into what was causing this.
Just my 2 cents...
H
__________________
90'ZR-1 #1461 Red/Black
Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold
08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold
05 C6 Z51 Red/Black Sold
90'ZR-1 #1723 Black/Gray Sold but not forgotten
91' Z51 L98 White Vert. My First, you always remember your first. Sold.
Ccmano is offline   Reply With Quote
Old 04-08-2010   #16
jonszr1
 
jonszr1's Avatar
 
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
Default Re: Throwout bearing.

i am thinking that the pivot ar the fork might be worn . i know when bill redid the clutch on my black car 7 mo after i did it he found that both had become worn and was causing the clutch to want to stick at certain points of the travel
jonszr1 is offline   Reply With Quote
Old 04-12-2010   #17
FULLPWR
 
FULLPWR's Avatar
 
Join Date: Feb 2006
Location: Magnolia, tx
Posts: 195
Default Re: Throwout bearing.

I just changed the clutch out saturday, and i wanted to share this info.
before I pulled the tranny probably year or so ago i started buying different parts i thought i was going to need.
I bought a clutch fork from a forum member just in case.
when i was putting the housing together with the ball stud and was trying to decide which fork to use old or new old.
the one i pulled out of the car wobbles when its laid down flat, the fork tangs are not the same ht, so when i pushed down on one fork tang the yoke part of it where the slave pin hits would lift up.
The new old one did not move at all period. Though they looked perfectly the same, im glad i laid it flat.
I guess when the t/o bearing broke apart it may have twisted my fork ends.

FULLPWR is offline   Reply With Quote
Old 04-12-2010   #18
scottfab
 
scottfab's Avatar
 
Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,207
Default Re: Throwout bearing.

Quote:
Originally Posted by rhipsher View Post
my steering wheel shakes once I reach 59mph and up and once I hit 80mph it smooths out a bit.
That sure sounds like a lost balancing weight.
Well at least that what it was on mine.
__________________
Scott


Vett owner since 1979._It's about the car and the people
scottfab is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:33 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020