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#1 |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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I spent a lot of time researching the correct way to set up a clutch a couple thousand miles ago when I had my engine out for a rebuild. Now the engine and trans are out again for a chassis rebuild and I was resealing some leaks and took the trans out for a quick look... only my throw out bearing mangled
![]() -Tremec TKO-600 5 speed -Lakewood bellhousing, clutch fork and adjustable pivot ball -McLeod 11" clutch kit (Street pro I think... it's nothing to special) -longer dowel pins that are offset to tune the bell housing in (which it is only .002" off, .005" is the max for the TKO-600) -Center Force all steel flywheel It bent in three spots and cracked next to the biggest of the bends which hit the inside of the "C" of the fork. When I was setting it up last time. I had the flywheel installed and than skipped the clutch and installed the bellhousing. Measure to the pivot ball and took the required measurements and than took the bellhousing off and installed the clutch and than installed the bellhousing again. I know my linkage has always been kind of crooked but I dont think that would effect this? I am making a new frame bracket and a bracket that comes off the bellhousing to perfectly align the two. I know there are different length throw out bearings maybe I got the wrong one but I know I figured in the size when I did all the math for the set up. What do you guys think? I think I am getting to much pressure on the throwout bearing and it must be to close to the pressure plate/flywheel and I need to adjust the pivot ball away from the flywheel. I will have to reinstall the throwout bearing and see how parallel the clutch fork is to the flywheel. ![]() ![]() ![]() ![]() |
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#2 |
Registered User
Join Date: Feb 2008
Location: Tacoma Washington
Posts: 890
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Re: Trouble with throw out bearing / clutch set up
It's weird that the flange is bent away from where the force is applied. There should be any pressure on that side. Is it a weird picture angle or is that flange bent the wrong way?
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#3 |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
I didn't think about that. No trick photography, it's bent backwards. Hmmm
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#4 |
Registered User
Join Date: Feb 2008
Location: Tacoma Washington
Posts: 890
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Re: Trouble with throw out bearing / clutch set up
Was your clutch fork chewed up too?
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I know a guy who's addicted to brake fluid. He says he can stop any time. 72 K10 396 75 Cj5 MPI 350 Chev 67 Chevelle 396, 4 speed 74 FXE 08 Tahoe |
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#5 |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
No, the clutch fork looked really nice. I will go take another look at it in the shop right now though just to be sure.
Called my dad, who builds cars for a living and he was thinking that the hrowout bearing got stuck on the nose cone. I can't tell if it galled it or not because I had it gall it once almost 10 years ago when I first got the TKO. I just sanded the nose cone (where the throwout bearing rides) because I was on a budget and it was only light galling and didn't seem like it would cause me in problems if I just sanded it. He also told me to measure the i.d. of the throwout bearinging and the o.d. of the nose cone. Maybe it to tight causing it to catch. |
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#6 |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
maybe I clocked the throwout bearing wrong in the clutch fork... which caused it to get stuck and than the clutch fork freed it multiple times causing it to eventually bend the rear flange??? Just a thought. How do you guys "clocked the bearing in the clutch fork?
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#7 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,611
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Re: Trouble with throw out bearing / clutch set up
You used the wrong tob and/or you have your pivot ball adjusted to far from the flywheel.
When you depress the pressure plate the back side of the fork distorted the flange that's bent on the tob. What style of fork? You got a pic of it? |
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#8 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: Trouble with throw out bearing / clutch set up
2nd that idea....it sure looks like the fork is over extending, while making the push ? Longhorn
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#9 |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
Sorry had some medical stuff come up with family and swamped at work, will get the picture up tonight. I don't remember the fork having any abnormal wear though. That's why I didn't include a picture. I will get a couple on here tonight though thanks for the ideas
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#10 |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
Sorry more medical stuff came up. I figured out the problem between all the time sitting in the hospital and tonight when I found an old throw out bearing that wasn't bent all to hell. My problems are-
-Part of the transmission (where the lower of the two main shafts comes all the way forward, it sticks out less than .020" but is not suppose to be out that far to the best of my knowledge. solution- Lightly grind the bell housing where the part is hitting. - The clutch fork arm is at the wrong angle, I read the instructions wrong, I made the clutch fork paralelle to the flywheel when my foot was off the pedal (1/4" gap between the throwout bearing and pressure plate fingers, like the instructions call for) instead of when the pedal was to the floor. And the solution- Readjust my pivot ball after I have the engine in the frame with the clutch linkage installed and adjust the pivot ball tell the arm is paralelle with the pedal to the floor. -Clutch fork seems to have just a little extra material in the middle of the "C". solution- Grind a 1/8" off and file the edges smooth. My input shaft bearing retainer has galling from the throw out bearing... I think I might as well replace it now just so it doesn't have any help hanging up on any thing. The last picture is with the the throw out bearing installed and lightly pressed up against the pressure plate ![]() ![]() ![]() ![]() ![]() Last edited by Baker819; 04-11-2014 at 01:51 AM. |
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#11 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Trouble with throw out bearing / clutch set up
You lost me after "I made the clutch fork paralelle to the flywheel when my foot was off the pedal (1/4" gap between the throwout bearing and pressure plate fingers, like the instructions call for) instead of when the pedal was to the floor."
![]() So was part of the problem the pivot ball adjustment as geez mentioned? Just curious since that was about the only way I could see the TOB being bent the way it was.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#12 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,611
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Re: Trouble with throw out bearing / clutch set up
And why did you grind off a little metal on the retainer clip on the fork. It's supposed to be a bit tight on the tob. Keeps the tob from spinning on the fork.
And I don't see how the tob could gall the input shaft bearing retainer. |
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#13 | |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
Quote:
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#14 | |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Trouble with throw out bearing / clutch set up
Quote:
Either way glad you got it resolved.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#15 | |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
Quote:
The throwout bearing didn't slide in the fork through out the travel of the fork. It believe having the having the distance wrong was the main problem. When the clutch fork is suppose to be parallel with the flywheel it has the most pressure applied and when it not parallel it has little pressure allied. I'm thinking that since the throwout bearing fits so tightly in the fork that it angles the throwout bearing on the bearing retainer... causing it to hang up and gall... and bend the throw out bearing, which is a first. |
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#16 |
Registered User
Join Date: Oct 2012
Location: WA
Posts: 119
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Re: Trouble with throw out bearing / clutch set up
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#17 | |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Trouble with throw out bearing / clutch set up
Quote:
![]() But just in case, let us know how it goes.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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Tags |
clutch, clutch linkage, pivot ball, throw out bearing, throwout bearing |
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