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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Jul-24-2016, 08:23:07 PM   #1
OneFastSicilian
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Default Low Clutch Engagement....?

Hey what's going on everyone!

Currently in the process of bringing an LSB to life with a new trans and brand new LUK clutch kit. I installed everything properly as I've done this job a few times in the past but this time is different.

The clutch seems to grab ALLL the way at the bottom. No idea why. Slave cylinder is good, bled the system, even pulled the trans and made sure everything was done right. Pressure plate was TQ'd to spec and clutch disc was installed the proper direction. Also put in a brand new throw out bearing, and pivot pin.

Does anyone have any ideas why this would happen? Master cylinder is my next thought.

Thanks!

-Frankie
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Old Sun, Jul-24-2016, 09:45:14 PM   #2
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Default Re: Low Clutch Engagement....?

Made sure to torque the PP down before removing the lock?

If all is well I'd suspect a hydraulic failure as well. Wouldn't hurt to re-bleed again.
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Old Sun, Jul-24-2016, 10:57:38 PM   #3
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Default Re: Low Clutch Engagement....?

Yes, I made sure the clutch alignment tool was in there and perfectly centered As it sits in the pilot bearing and I didn't remove it until everything was torqued to spec
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Old Mon, Jul-25-2016, 08:26:22 PM   #4
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Default Re: Low Clutch Engagement....?

Anyone else ?
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Old Mon, Jul-25-2016, 08:59:45 PM   #5
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Default Re: Low Clutch Engagement....?

Are you not satisfied with the engagement there? In general I prefer when the clutch engages relatively low, but if it's like right off of the clutch stop I understand the concern... still better than a clutch that doesn't engage till the very top of the stroke imo.

Anyway, sorry I couldn't be of any help
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Old Mon, Jul-25-2016, 09:09:18 PM   #6
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Default Re: Low Clutch Engagement....?

Quote:
Originally Posted by OneFastSicilian View Post
Yes, I made sure the clutch alignment tool was in there and perfectly centered As it sits in the pilot bearing and I didn't remove it until everything was torqued to spec
Did you take out the throwing star lock piece on the pressure plate before torquing it down?
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Old Tue, Jul-26-2016, 12:39:11 AM   #7
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Default Re: Low Clutch Engagement....?

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Originally Posted by nrubenstein View Post
Did you take out the throwing star lock piece on the pressure plate before torquing it down?
Yes. That's needed to be removed in order to insert the alignment tool
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Old Tue, Jul-26-2016, 03:21:50 AM   #8
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Default Re: Low Clutch Engagement....?

Quote:
Originally Posted by OneFastSicilian View Post
Yes. That's needed to be removed in order to insert the alignment tool
That's why you aren't getting the right engagement - the center lock piece needs to be removed after you torque down the pressure plate. It should have come with a two piece alignment tool that you can use to put through the lock plate to bolt everything in, then when you torque it down, you can finally remove the lock.

If you browse through the other recent thread, it has instructions on how to reset the SAC pressure plate:
http://www.m3forum.net/m3forum/showthread.php?t=551292
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Old Tue, Jul-26-2016, 04:21:03 AM   #9
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Default Re: Low Clutch Engagement....?

Quote:
Originally Posted by CrookedCommie View Post
That's why you aren't getting the right engagement - the center lock piece needs to be removed after you torque down the pressure plate. It should have come with a two piece alignment tool that you can use to put through the lock plate to bolt everything in, then when you torque it down, you can finally remove the lock.

If you browse through the other recent thread, it has instructions on how to reset the SAC pressure plate:
http://www.m3forum.net/m3forum/showthread.php?t=551292
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Old Tue, Jul-26-2016, 06:18:19 PM   #10
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Default Re: Low Clutch Engagement....?

Quote:
Originally Posted by CrookedCommie View Post
That's why you aren't getting the right engagement - the center lock piece needs to be removed after you torque down the pressure plate. It should have come with a two piece alignment tool that you can use to put through the lock plate to bolt everything in, then when you torque it down, you can finally remove the lock.

If you browse through the other recent thread, it has instructions on how to reset the SAC pressure plate:
http://www.m3forum.net/m3forum/showthread.php?t=551292
Outstanding contribution CC!
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Discussing Low Clutch Engagement....? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)