|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
think i burned my clutch
|
|
04-03-2012, 06:38 PM | #1 |
Major
105
Rep 1,428
Posts |
think i burned my clutch
i red lined the car today from a rolling start in first, red line killed power. when i took it out of first at the light, the clutch pedal stuck to the floor. while i was waiting i ran it though the gears, it was very notchy and the clutch pedal still stuck to the floor. there was no resistance in the clutch pedal, as i waited for the light it started feeling better. it was a nice long houston feeder road stop light so by the time it turned green i was able to take off very slowly in first and i shifted clutchless the rest of the way home. when i got to my neighborhood first felt much better but i still have to go extremely easy on the clutch. i can shift with the clutch but it is very notchy in the low gears 1-3. i am hoping all i did was overheat the disc, which may have glazed it, if thats possible, it is all speculation for me, and it will slowly return to normal. it is drivable and i think the damage is all mechanical, as i got no warning lights what so ever. any previous experience or thoughts on this manner would be appreciated, even if they are about how much of a dumb-ass i am.
|
04-03-2012, 07:07 PM | #3 |
Major
105
Rep 1,428
Posts |
no it holds i didnt notice any slipping at all even directly after, it just shutters really bad on release, but it seems to be getting better.
|
Appreciate
0
|
04-03-2012, 08:28 PM | #4 |
Lieutenant Colonel
213
Rep 1,779
Posts |
I don't understand, you shifted near redline and you think you burned the clutch? Or am I missing something?
__________________
Koni special active red, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit. Silicon intake pipe. M3 control arms front, M3 rear. ECS trailing arm with whiteline bushings. Purple powerflex subframe bushings. Yellow power flex upper shock mounts. Single mass flywheel OE weight.
|
Appreciate
0
|
04-03-2012, 08:55 PM | #5 |
Second Lieutenant
5
Rep 295
Posts |
|
Appreciate
0
|
04-03-2012, 09:16 PM | #7 |
Major
105
Rep 1,428
Posts |
no i was already rolling 5-10mph, gunned it, car went to red line, lost power. when i depressed the clutch to take it out of 1st gear the clutch pedal stuck to the floor, dead. i just now drove it to the store and it was operational, i had to take it very easy and when i started from a stop on a hill i got a little shuttering. 3rd and 4th were very hard, had to wait till rpms dropped for them to pop in, kind of like shifting clutchless when you dont do it right. on the way home i was taking a turn in second and accelerated to 4k rpm and clutch pedal went dead again. i will be taking it to the shop asap. just not sure if im even going to try the dealer for warranty.
|
Appreciate
0
|
04-04-2012, 12:57 AM | #10 | |
Second Lieutenant
4
Rep 291
Posts
Drives: 2008 328i, with 3 pedals
Join Date: Jan 2008
Location: San Francisco Bay Area, USA
|
Quote:
My guess from your description is that the clutch master or slave cylinder has failed. Chances are you "jumped" on the clutch pedal to disengage when the limiter kicked in and this damaged the seals in the master or slave (master more likely). With seals blown, there is no restoring force to make the pedal come back up. With this kind of damage, when you press the pedal, you are getting only some fluid pumped to the slave. Therefore, the pedal is not fully disengaging the clutch disc, resulting in very hard shifts, or as you describe, it's like shifting without a clutch. I think you got lucky and will only have to replace one or both cylinders. Far better than having to replace the clutch itself! Let's hope my reasoning is correct. Regards and good luck. |
|
Appreciate
0
|
04-04-2012, 10:02 AM | #11 |
Major
105
Rep 1,428
Posts |
thanks for the reply, i think you are right. i dont think the acceleration had anything to do with it as the car is running normal other wise. i just dropped it off at the dealer and i am pretty confident it will be covered under warranty.
|
Appreciate
0
|
04-04-2012, 10:19 AM | #12 | |
AC
95
Rep 2,387
Posts |
+1, most likely the hydraulics which activates/de-activates the clutch.
I red-line my car everyday and the clutch never had problems. I wish we will go back to the days when cable was used. You can "feel" the power of the engine through the clutch pedal. Quote:
__________________
Your Supreme Leader
|
|
Appreciate
0
|
04-04-2012, 11:02 AM | #14 | |
Hates Posers
13
Rep 443
Posts |
Quote:
This. He redlined it felt the fuel cutout hit the clutch because he bounced off the cutoff and the clutch cylinder has failed. |
|
Appreciate
0
|
04-04-2012, 11:04 AM | #15 | |
3441
Rep 79,212
Posts
Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com
|
Quote:
|
|
Appreciate
0
|
04-04-2012, 11:18 AM | #16 |
Second Lieutenant
4
Rep 291
Posts
Drives: 2008 328i, with 3 pedals
Join Date: Jan 2008
Location: San Francisco Bay Area, USA
|
That's definitely a possibility, which I considered. T/O bearings usually don't fail abruptly; they give you fair warning. The force of the tines is very high, making it less likely that the bearing is stuck in the forward position. If it is then stuck in the retracted position, the clutch pedal would be very difficult to press.
From a mechanical standpoint, it is absolutely a possibility that the bearing has failed, resulting in the symptoms given. OP, has the feel of the pedal changed since the incident? |
Appreciate
0
|
04-04-2012, 12:13 PM | #17 |
Major
14
Rep 1,203
Posts
Drives: '11 STI, '90 325iS
Join Date: Aug 2011
Location: Toronto, Ontario, Canada
|
Yeah, until that cable snaps in the middle of a busy intersection and the car stalls >.<
__________________
|
Appreciate
0
|
04-04-2012, 05:44 PM | #19 |
Major
105
Rep 1,428
Posts |
havent heard from the dealer yet, but im thinking it is hydraulic because it was drivable last night but got progressively worse. this morning there were times where it would build pressure, the drive to the dealership was interesting.
|
Appreciate
0
|
04-06-2012, 09:31 AM | #20 |
Major
105
Rep 1,428
Posts |
just talked to the service advisor, he said the clutch is destroyed. thats a very vague description, all he said was there was residue all over the bell housing. dosent make sense to me, i would have thought the clutch would have slipped in gear. waiting on word from bmw, but my guess is they are going to call it abuse.
|
Appreciate
0
|
04-06-2012, 10:45 AM | #22 | |
TOML Rescue
6
Rep 664
Posts |
Quote:
Is BMW really that much of a fragile and delicate little flower that it will break down at the slightest "spirited" driving? |
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|