Throw Out Bearing, I Think

[vt s]

Hey guys i think i am really worried i have made a big mistake when replacing the clutch and flywheel for my car.
When i am driving as the revs reach and go above 3000 there an obvoius noise.
It sounds like two things grinding together.
And when i press the clutch in you can still hear it but spinning freely and slowly slow down and go away.
I am guessing it might be the thowout bearing?
When i did replace the clutch i didnt grease it as it was a sealed bearing, is this correct?
Also replaced the spigot bush and wondering is that spose to be lubed aswell?
Just i was reading somewhere it sounded like it should have been...
Any help would be appreciated. Thansk

[paulsautoelec]

you should have replaced the bearing as well when replacing clutch

[kart_racer]

The spigot bearings come greased now, can't see that being the issue.

You say the noise happens when you push the clutch in? However this is when there is most pressure on the throwout (thrust) bearing, so I don't know how that works. I thought these usually came as part of the kit?

Maybe the clutch driven plate is installed around the wrong way and contacting the flywheel when free...

[vt s]

OK sorry poeople i for got mention some things.
The noise happens when im driving and the revs increase the sound gets more noticable.
And when i press the clutch the noise slowly dissapears.
Im just wondering if it could be maybe a tensioner pulley or one of the other ones?
Also to mention when i replaced the clutch the throwout bearing was replaced as the old one was not sealed (i assume as it was smoothered in grease)
And on the point of spigot bush being pre greased how do you mean?
Cos when i got mine from holden it wasnt greased (or appeared to be) and the one i pulled out wasnt which is why i didnt grease it.
I realise now its now throw out bearing i think i was only assuming the worst after i read something somewhere else and just panicked
And i know ive got no idea so just try not to hassle me bout a bit lost thats why i bought it up here
Thanks

[9C1pack]

"Im just wondering if it could be maybe a tensioner pulley or one of the other ones?"
While the engine is cold, slip the tensioner belt off and take it for a short drive (30 secs) using 1st, 2nd. 3rd and 4th and note if the noise has gone..

[kart_racer]

Well if it slowly dies down when you put the clutch in, it is related to the engine.

Although now that I think about it, when you put the clutch in, the flywheel & pressure plate slow down, and since the throwout sits against the pressure plate it will slow down too.

So I'd say you could well have been on the right track to start with! Sorry mate!

[9C1pack]

If you do not have the required amount of clearance between the throw out bearing and the pressure plate fingers, the throwout bearing will be turning all the time, and will soon wear out. can you see or get yours hands on the throw out fork? you should be able to move/wobble it a bit when the clutch pedal is fully released.

[vt s]

OK thanks guys
9c1 when checking the fork, if it does not wobble does that mean theres problem?
Tbanks

[9C1pack]

I am not all that familiar with the layout of the manual box in the commodore but in previous holdens and Toyotas that i have replaced clutchs in. The throw out fork hung out the side of the gearbox and then connected to the slave cylinder or mechanical setup and it was there that you could grab it and should be able to rattle/move it a few mill.
You may need to buy/borrow a workshop manual to see the recommended way to check and adjust it.

[vt s]

Yea i know where the fork is as i was the one who done the work but im just asking that what would be all the posibilties i would find after tryin to give it a wiggle.
Eg Few mill movement is good you said but what if it doesnt move or if it moves alot?..
If u dont understand what im asking dw il just have to write back in a few days after ive gone under and i can let you know the result

[9C1pack]

Is it a getrag?
I found a pic on the net of a getrag and I could not see an external adjustment.
Sometimes there is an adjustable threaded rod between the slave cylinder and the fork, but unlikely in this case, looks like a similar setup to my old HK holden on those you adjust the clutch fork pivot ball (in the bell housing) to move the fork and bearing in or out. See if you can borrow a maintenance manual.

[vt s]

Yea its m34
I cant say i remember exactly but i dont think there to udjust it but at the time i wasnt really looking so i could be wrong. Anyway il check it out sometime hopefully by wednesday and let you know.
On the manual ive seen the holden workshop manuals for the commodores on ebay for 60 bucks and they mention that regularly you cant actually buy the manual.
Is this right>?

[kart_racer]

There is no adjustment for the hydraulic clutch. It's self adjusting, so any time you bleed it, it just returns to the same position. We had an issue with the new HD clutch where the slave seemed to be keeping the fork and throwout against the pressure plate so we put exhaust gaskets as spacers to pull it back a bit.

Apart from that, there's not much you can do.

[vt s]

Yea i noticed that when i bled th fluid few weeks earlier.
Striaght after i did it it was much nicer but later that day when i went home i went back to how it was.
Nothing bad but just a little bit of travel.
Now i know why lol thanks

[Calaber]

The only adjustment provided for is the clutch pedal free play, which should be only 1 mm. That means there should only be 1 mm of free play in the clutch pedal at the adjustment point.

If the pedal adjustment is too tight, with no free play, it's possible that hydraulic pressure is constantly being exerted on the throwout bearing, pushing it forward to bear agains the pressure plate.

Pedal adjustment is under the dash panel where there is a threaded adjuster provided between the clutch pedal and the master cylinder.

[fitz_vt]

from memory if the clutch pedal does not have the correct free play like Calaber said there should only be 1 MM or Free play and if its not adjusted correctly can constantly apply pressure to your throwout bearing.

Can you describe the noise... is it a rapping noise, a ticking noise? a whining noise or a crunching noise

[vt s]

its only when i get into the high rev range which is rarely.
As so i havent heard it since posting this but it was scraping sort of noise.
Say when u put a bit of metal against a buffing machine or something.
At a certain point the sond comes in very faint, round 4000 and gets louser the higher the revs weant.
What do u think baout my considerations of it being a, or more pulley?
At idle they do make a very faint worn noise but not so much that most people would notice as im constantly parnaois about my car