[MDORPHN]

Originally Posted by FastBimmerN54

There are blown trannies on any car, however, there is few and far between for regular FBO cars.

You are the same guy saying all of us with 14 PSi are going to blow our tranny, cmon man and our turbo's. And Mr.5 ? Are you serious? Did you ever see that guy on the track? He abuses the snot out of his transmission in his videos. He purposely shift locks his gears when downshifting too. Does that sound like a healthy correct way of downshifting? Its no wonder he ran into a problem.

Not one part of his driving methodology is correct if you want things to last. No rev matching, or heel toe driving and certaintly no concern for excessive abuse or wear and tear. Not to mention his abusive drag racing videos and 1-2 shifts.

What would expect out of any car being driven like that?
Nothing against Mr.5 but he doesnt exactly drive like a grandma. He drives the car like its a race car... and race cars break with abuse too.

Anyone who drives a race car (or a street legal car) on a road course knows how to heel-and-toe!

Neil

[FastBimmerN54]

Originally Posted by MDORPHN

Anyone who drives a race car (or a street legal car) on a road course knows how to heel-and-toe!

Neil

He doesnt in his videos.... atleast the ones I've seen. He said he didnt heel toe because he cant get enough braking force at the track IIRC. Point being, 1 failure of an excessively abused vehicle does not conclude that this car has a weak transmission unable to handle 14 PSI, which was that posters comment in another thread.

[jeff2.0t]

TOB

[Turkeybaster115]

Originally Posted by ErvGotti

They have the same base part number GS6-53DZ with the 335i being GS6-53DZ - THGX and the M5 being GS6-53DZ - THGR, meaning the base tranny is the same with some minor differences. What they are I'm not sure could be a bolt or something.

http://www.realoem.com/bmw/showparts...26&hg=23&fg=05

http://www.realoem.com/bmw/showparts...45&hg=23&fg=05

E60 M5 part number= 23002283151

335I part numbers= 23007567242 & 23007571423

[Turkeybaster115]

Originally Posted by FastBimmerN54

There are blown trannies on any car, however, there is few and far between for regular FBO cars.

You are the same guy saying all of us with 14 PSi are going to blow our tranny, cmon man and our turbo's. And Mr.5 ? Are you serious? Did you ever see that guy on the track? He abuses the snot out of his transmission in his videos. He purposely shift locks his gears when downshifting too. Does that sound like a healthy correct way of downshifting? Its no wonder he ran into a problem.

Not one part of his driving methodology is correct if you want things to last. No rev matching, or heel toe driving and certaintly no concern for excessive abuse or wear and tear. Not to mention his abusive drag racing videos and 1-2 shifts.

What would expect out of any car being driven like that?
Nothing against Mr.5 but he doesnt exactly drive like a grandma. He drives the car like its a race car... and race cars break with abuse too.

Dude, I stopped arguing with you in the other thread, not because you're right, but because I would have received an infraction from the moderators for sure. Since when can our cars handle 14+ PSI? Judging by your join date, I sure as hell hope you don't own a 335I built after 2008, and are running around on 14 PSI! For one thing, did you know that all N54/55 motors built after fall 2008 have cast iron pistons?

[ErvGotti]

Originally Posted by Turkeybaster115

E60 M5 part number= 23002283151

335I part numbers= 23007567242 & 23007571423

Yes the part numbers are different, what I'm getting at is that they share the
GS6-53DZ tranny. This is the SAME base tranny used in the M5 and 335i. The 23007571423 in the 335i and 23002283151 in the M5 is "stock code"
it's what BMW uses to tell the differnence between the two.

It could be a bolt or something, but GS6-53DZ is the designation of the tranny like N54B30 is the designation of our beloved twin turbo N54, yet there are multiple part numbers for the 335i and 535i and neither shares the same part number but we both know they both have an N54


Anyways sorry for the OT Big Tom and good luck with the fix.

[ETS Michael]

I would money on the throw out bearing. I had the same problem on my SC300. Sounds like crap until you push the clutch in and it goes away. I switched out the clutch and it was good to go.

Good luck!

Michael

[Big Tom]

WTF!!!??

I've been driven the car like grandma since the noise came up, but yesterday I decided to drive the car hard again (like I usually do ) and today the noise is totally gone!!

Strange...

It will be very interesting to see how the clutch, pressure plate, flywheel and throw out bearing will look like when I change the clutch.

I wonder if it maybe could be one of the springs on the disc that have came loose and popped of completely when I started to drive it hard again?

[Big Tom]

Originally Posted by Big Tom

WTF!!!??

I've been driven the car like grandma since the noise came up, but yesterday I decided to drive the car hard again (like I usually do ) and today the noise is totally gone!!

Strange...

It will be very interesting to see how the clutch, pressure plate, flywheel and throw out bearing will look like when I change the clutch.

I wonder if it maybe could be one of the springs on the disc that have came loose and popped of completely when I started to drive it hard again?

Bump.

[R1000K3]

Something that was broken and caused noise has been trapped in a location where it is silent instead of causing interference's. Or the clutch release bracket lock-spring is loose at the the end and the bracket has now moved back into place. This is just wild guessing from my side and I'm not sure at all.
What it isn't though is bad shaft bearings etc. that has been speculated upon and I've never believed in a bad throw-out bearing (but can be wrong here too).

So, the question is what to do IF the old clutch parts looks OK and it then should have been something internal in the gear box. Will you open it to see if there is something loose in it or hope it fixed itself and will not return? I would open it and take a look inside to prevent possible grenading at a later time.

[rwalker]

Originally Posted by Big Tom

Bump.

You've been tolerating that noise for 2 weeks? Um, what?

[Alan l.]

Originally Posted by Turkeybaster115

For one thing, did you know that all N54/55 motors built after fall 2008 have cast iron pistons?

This is not fact but only speculation so don't pass it off as such. BMW changing part numbers doesn't tell us anything because they do it all the time.

Alan

[Turkeybaster115]

Originally Posted by Alan l.

This is not fact but only speculation so don't pass it off as such. BMW changing part numbers doesn't tell us anything because they do it all the time.

Alan

Re-read the thread Alan, it was confirmed by an independent European shop. It's well known that BMW did a lot of cost cutting with these vehicles over the years. Using cast iron instead of forged pistons is a no brainer, as a quick source of savings for BMW. Remember, they do not make their vehicles for the customers to go "tune" their cars for greater than factory output, so they do not have any obligation, to test their vehicle components at anything other than factory output.

[Big Tom]

Originally Posted by Turkeybaster115

Re-read the thread Alan, it was confirmed by an independent European shop. It's well known that BMW did a lot of cost cutting with these vehicles over the years. Using cast iron instead of forged pistons is a no brainer, as a quick source of savings for BMW. Remember, they do not make their vehicles for the customers to go "tune" their cars for greater than factory output, so they do not have any obligation, to test their vehicle components at anything other than factory output.

Please guys, try to keep your piston talk in another thread...

[Big Tom]

Originally Posted by dzenno

My money is on the pressure plate first, might be disk as well AND the throw out bearing.

Originally Posted by ETS Michael

I would money on the throw out bearing.

I think I'll get rich on this...

Originally Posted by hemi to e90

ugh
we were promised a hug damnit.

Sorry man, no hugs today...




This is the reason for the noise, it's the dual mass flywheel who has given up...
It will be changed out tomorrow, along with a ACT clutch.

[ar design]

Originally Posted by dzenno

metal carries noises like you wouldn't believe, ask me how I know whatever it is you'll have to drop the tranny and look, no point looking unless you do that...wouldn't waste any more time doing anything else

This.

FWIW, we have yet to see a single blown gearbox here.

Tom, let us know how that ACT clutch works out for you. We are getting a bunch more in stock this week!

[tscdennab]

Originally Posted by Big Tom

This is the reason for the noise, it's the dual mass flywheel who has given up...
It will be changed out tomorrow, along with a ACT clutch.

A bit expensive repair but I'm glad it's not the gearbox. I think that changing the flywheel too along with the clutch will give you many miles of trouble-free operation

[hemi to e90]

ooooo so the internet was right?

[Rotorocious]

the flywheel is supposed to spin freely right?

[tscdennab]

Originally Posted by tscdennab

In fact I think it comes from the front of the gearbox (clutch/flywheel area), and it's carried out to the back. I can hear it with a higher frequency at the front, and then it's more muffled in the back.

It seems I was right

[Big Tom]

Originally Posted by Rotorocious

the flywheel is supposed to spin freely right?

No, no...

This video explains it pretty good:

[ETS Michael]

Glad it wasn't the gear box.