Abrupt and shaky clutch engagement, strange shimmy / shake from engine

mmmusty · 02-03-2017, 07:54 PM

Hi addicts,

So my 08 128i has a strange syndrome when I lift my foot off of the clutch and the engagement is happening, it doesn't "hook up" immediately... rather, its seems like it slips or is slipping intermittently.

this happens until what seems to be, the car warming up. after that, it engages pretty normally.

there is also a "shimmy" kind of shake from the engine at idle in neutral, it'll do that and that be normal and smooth, and repeats this a bit sometimes, again, mostly when the car is cold.

now, two weeks ago after changing diff and tranny oil, my friend said that the guibo or flex disc i believe its called, is put on BACKWARDS and that its not in the best shape... he said thats the reason why the clutch engagement is what it was.

any thoughts??

Rallim · 02-03-2017, 09:51 PM

Shouldn't effect the clutch engagement, but it's literally a vibration damper so that could be the cause of the shake.

juld0zer · 02-06-2017, 01:30 AM

clutch delay valve? Are you trying to burn rubber or just shift fast?

mmmusty · 02-06-2017, 01:49 AM

I believe the clutch delay valve was removed already. Not trying to burn rubber, just have the clutch hook up as usual for first gear. its as if the clutch slips, but then the clutch feels strong, and when warmed up, it hooks up...

asbrr · 02-06-2017, 08:21 AM

Quote:

Originally Posted by mmmusty

I believe the clutch delay valve was removed already. Not trying to burn rubber, just have the clutch hook up as usual for first gear. its as if the clutch slips, but then the clutch feels strong, and when warmed up, it hooks up...

You may be experiencing clutch "chatter" - when glazing or other contamination (uneven wear etc) of the clutch face happens due to various reasons including age.

http://www.freeasestudyguides.com/ma...h-chatter.html
http://clutchdoctor.com/causes-sympt...lutch-chatter/

Have you ever had the clutch changed? Any idea on mileage on the existing clutch?

Could simply be time to replace....

ShocknAwe · 02-06-2017, 06:17 PM

The clutch will get chattery. It doesn't mean it needs to be replaced. Especially as the springs wear out on the assembly it will make more and more noise. As long as it hooks up, don't worry.

mmmusty · 02-07-2017, 03:09 PM

Thanks guys, I was thinking along the lines of clutch glaze as you said or uneven wear, or possibly that my clutch is going out. has 114k on it and I dont think previous owner changed it.

Thats not to say it is. I think Ill do the 3rd gear test unless anyone else has a better suggestion (3rd gear from standstill, quickly lift off clutch pedal and engine should either stall or close to it with strong clutch)

am i correct?

mmmusty · 02-07-2017, 03:10 PM

Thanks guys, I was thinking along the lines of clutch glaze as you said or uneven wear, or possibly that my clutch is going out. has 114k on it and I dont think previous owner changed it.

Thats not to say it is. I think Ill do the 3rd gear test unless anyone else has a better suggestion (3rd gear from standstill, quickly lift off clutch pedal and engine should either stall or close to it with strong clutch)

am i correct?

02-03-2017, 07:54 PM	#1
mmmusty Private First Class 26 Rep 144 Posts Drives: 2008 alpine white 128i Join Date: Jan 2011 Location: Los Angeles iTrader: (1)	Abrupt and shaky clutch engagement, strange shimmy / shake from engine Hi addicts, So my 08 128i has a strange syndrome when I lift my foot off of the clutch and the engagement is happening, it doesn't "hook up" immediately... rather, its seems like it slips or is slipping intermittently. this happens until what seems to be, the car warming up. after that, it engages pretty normally. there is also a "shimmy" kind of shake from the engine at idle in neutral, it'll do that and that be normal and smooth, and repeats this a bit sometimes, again, mostly when the car is cold. now, two weeks ago after changing diff and tranny oil, my friend said that the guibo or flex disc i believe its called, is put on BACKWARDS and that its not in the best shape... he said thats the reason why the clutch engagement is what it was. any thoughts??
	Appreciate 0 Tweet Quote

02-03-2017, 09:51 PM	#2
Rallim Private 31 Rep 81 Posts Drives: 2009 135i Join Date: Nov 2016 Location: Washington iTrader: (0)	Shouldn't effect the clutch engagement, but it's literally a vibration damper so that could be the cause of the shake.
	Appreciate 0 Quote

02-06-2017, 01:30 AM	#3
juld0zer Lieutenant Colonel 480 Rep 1,600 Posts Drives: Prev 135i 7DCT, Now 130i 6sp Join Date: Jul 2016 Location: 2153 iTrader: (0)	clutch delay valve? Are you trying to burn rubber or just shift fast?
	Appreciate 0 Quote

02-06-2017, 01:49 AM	#4
mmmusty Private First Class 26 Rep 144 Posts Drives: 2008 alpine white 128i Join Date: Jan 2011 Location: Los Angeles iTrader: (1)	I believe the clutch delay valve was removed already. Not trying to burn rubber, just have the clutch hook up as usual for first gear. its as if the clutch slips, but then the clutch feels strong, and when warmed up, it hooks up...
	Appreciate 0 Quote

02-06-2017, 06:17 PM	#6
ShocknAwe 1Addict 3234 Rep 7,894 Posts Drives: E82 Mutt, M57 Truck Join Date: Jul 2012 Location: Charleston iTrader: (22)	The clutch will get chattery. It doesn't mean it needs to be replaced. Especially as the springs wear out on the assembly it will make more and more noise. As long as it hooks up, don't worry. __________________ 2010 135i 6MT Jet Black N54/3 FE82 Mutt \| BUILD THREAD \| GARAGE SALE
	Appreciate 0 Quote

02-07-2017, 03:09 PM	#7
mmmusty Private First Class 26 Rep 144 Posts Drives: 2008 alpine white 128i Join Date: Jan 2011 Location: Los Angeles iTrader: (1)	Thanks guys, I was thinking along the lines of clutch glaze as you said or uneven wear, or possibly that my clutch is going out. has 114k on it and I dont think previous owner changed it. Thats not to say it is. I think Ill do the 3rd gear test unless anyone else has a better suggestion (3rd gear from standstill, quickly lift off clutch pedal and engine should either stall or close to it with strong clutch) am i correct?
	Appreciate 0 Quote

02-07-2017, 03:10 PM	#8
mmmusty Private First Class 26 Rep 144 Posts Drives: 2008 alpine white 128i Join Date: Jan 2011 Location: Los Angeles iTrader: (1)	Thanks guys, I was thinking along the lines of clutch glaze as you said or uneven wear, or possibly that my clutch is going out. has 114k on it and I dont think previous owner changed it. Thats not to say it is. I think Ill do the 3rd gear test unless anyone else has a better suggestion (3rd gear from standstill, quickly lift off clutch pedal and engine should either stall or close to it with strong clutch) am i correct?
	Appreciate 0 Quote