[snikok]

Hi guys,

So basically i just picked my car from an indy garage where the clutch replacement was done. They installed LUK clutch kit and they also did a flywheel surfacing cuz it was done too. Now the car shifts good but the clutch pedal is juddering like crazy when i press it. I can also hear weird noise, but only when the clutch pedal is pressed. The whole car is shaking as well when i realease the pedal. On the 1st and 2nd gear it is the most noticeable. It smells burnt too time to time (that maybe cuz its new). My mechanic can’t find a problem, he said it might be the chinese clutch i got, but i ordered it from rockauto. It says OEM LUK CLUTCH. What can be a problem? Im kinda embarrassed that it can happen after i’ve spent like 500$cad for a clutch and $1500 for labor....

[halik008]

guessing something went wrong with the resurfacing

[snikok]

How can it be checked? They gave me 1 year warranty for the flywheel...

[PasionM]

Your not supposed to resurface the dual mass flywheel. Sorry man but you will likely need to replace the complete clutch again with the new flywheel. Maybe you can get lucky and get rock auto to do a warranty exchange.

[halik008]

Originally Posted by PasionM

Your not supposed to resurface the dual mass flywheel. Sorry man but you will likely need to replace the complete clutch again with the new flywheel. Maybe you can get lucky and get rock auto to do a warranty exchange.

dual mass flywheels can be resurfaced. But it has to be done by somebody that really knows what they are doing.

[halik008]

Originally Posted by snikok

How can it be checked? They gave me 1 year warranty for the flywheel...

By ripping everything apart.

I replaced my clutch with RockAuto LUK kit....no problems.

[snikok]

If surfacing went wrong i might get a refund since i have a warranty. But does it mean i have to change the whole clutch again after 1 day driving a car? Or just a flywheel can be replaced?

[halik008]

Originally Posted by snikok

If surfacing went wrong i might get a refund since i have a warranty. But does it mean i have to change the whole clutch again after 1 day driving a car? Or just a flywheel can be replaced?

all depends on how much damage was caused to the disk and pressure plate. Hard to say at this point.

[GreaseJunkie]

Always replace a dual mass flywheel. If you're in there, replace it. Nobody wants to do the job twice. At least in my opinion.

[snikok]

So today i showed this thread to my mechanic, as well as other aticles i found online and the guy accepted that he was not supposed to do surfacing on my flywheel lol. He gave me a refund of $1100cad, i just ordered a new LUK flywheel, but ill have to pay him for installing it... i hope i didnt burn my clutch for the 3 days i was driving...

[sorin1987]

Originally Posted by snikok

Hi guys,

So basically i just picked my car from an indy garage where the clutch replacement was done. They installed LUK clutch kit and they also did a flywheel surfacing cuz it was done too. Now the car shifts good but the clutch pedal is juddering like crazy when i press it. I can also hear weird noise, but only when the clutch pedal is pressed. The whole car is shaking as well when i realease the pedal. On the 1st and 2nd gear it is the most noticeable. It smells burnt too time to time (that maybe cuz its new). My mechanic can’t find a problem, he said it might be the chinese clutch i got, but i ordered it from rockauto. It says OEM LUK CLUTCH. What can be a problem? Im kinda embarrassed that it can happen after i’ve spent like 500$cad for a clutch and $1500 for labor....

I am sorry I can't give you any advice but I just want to say I am amazed by that price for labour. I got charged 3 times less in London, UK. I thought London is expensive....looks like Canada is even worse

[e90yyc]

Originally Posted by sorin1987

I am sorry I can't give you any advice but I just want to say I am amazed by that price for labour. I got charged 3 times less in London, UK. I thought London is expensive....looks like Canada is even worse

It's Eastern Canada too, no less

But yeah, even in the Western provinces we certainly pay more than the currency-converted equivalent of most other places. Not sure why really.

[snikok]

Well average mechanics charge $50cad per hour. If you go more high end german garages it’s gonna be 80$ per hour. Dealers charge 140$ lol. But idk why my guy charged me THAT much for surfacing, that he didn’t even do properly. For a clutch replacement he charges me only $425cad. Anyways.

PS 100cad is 77usd nowadays

[Big Mexican Women]

Originally Posted by GreaseJunkie

Always replace a dual mass flywheel. If you're in there, replace it. Nobody wants to do the job twice. At least in my opinion.

I agree. resurfacing a flywheel costs almost as much as a new one anyways, so may as well just replace it.

clutch shudder could be because it hasn't been broken in yet, or because the flywheel was not resurfaced properly like someone else mentioned.

a whining/chirping/bearing sound when the clutch is fully depressed = worn throwout bearing. if this is the case, i would be dissapointed with the shop you took your car to. you'll need to take apart the transmission again to replace it.

[850CSi]

Originally Posted by Big Mexican Women

clutch shudder could be because it hasn't been broken in yet

I just replaced my DMF and clutch (like within the last 20 miles). I'm getting a little bit of clutch judder when I engage the clutch (in the last 1/3 of pedal travel as I'm releasing the pedal) and some driveline vibration on acceleration (a little reminiscent of my bad DMF but not nearly as prominent).

Is that a normal part of the break-in process?

Haven't driven a car with a new clutch in like 15 years.

[Brian86]

re: OP

Be aware that if you reuse the 'new/used' clutch that the self adjusting pressure plate needs to be reset once it is removed from the flywheel. Considering that the shop went ahead and resurfaced a DM flywheel I'd wonder if they are aware of the special needs of the self-adjusting PP.

It requires some exotic tooling according to the bentley manual.. I've never tried so I don't know if it can be 'kludged'

---------------

re: 850CSi

Maybe normal, maybe not normal.

I'm 300 miles into a new LUK flywheel and clutch on my n52, and it's behaved perfectly from the first engagement backing it out of the garage.

Feeling a little vibration under your foot in the pedal is usually the throwout bearing wobbling against the PP spring. it should go away after some driving to even out all the fingers. Expect this to be worse if you struggled to mount the transmission. Crashing the transmission input shaft into the fingers during installation can bend them a little, but it's really hard to cause any permanent damage.

A little shuddering while slipping the clutch also wouldn't be unusual and should work itself out.

There shouldn't be any driveline vibration when the clutch is fully engaged.

Drive a few tanks of fuel through the car and see if it smooths out.



*ninja-edit


850CSi:

I would think that driveline vibration while the clutch is fully engaged might be a symptom of something assembled incorrectly somewhere else in the car. Replacing the clutch requires taking a lot of stuff apart, and I know I've been guilty of missing a bolt or screw somewhere on the last few pieces when finishing a long job.

[850CSi]

Thanks man. Yeah the car's been sitting for a while and one of my coils just went bad also. Going to swap in new coils and just drive it for a few hundred miles and see what happens.

The explanation about the throwout bearing/PP springs makes sense. It's really very minor and I think way more noticeable when downshifting so perhaps that's it.