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Pilot Bearing Failure Experiences?

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Old Dec 3, 2002 | 02:37 PM
  #1  
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From: Centrifugal City
Default Pilot Bearing Failure Experiences?

What happens when a Pilot Bearing fails? What are the symptoms? Does it make any noise? How does it sound?

Thx!
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Old Dec 3, 2002 | 03:52 PM
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Default Re: Pilot Bearing Failure Experiences?

I had one go out, it sounded like a slow grinding/vibrating sound coming from under the tranny tunnel.
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Old Dec 3, 2002 | 03:55 PM
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From: Centrifugal City
Default Re: Pilot Bearing Failure Experiences?

All the time, or only at certain rpm's?
I'm getting a metal on metal spinning vibration at 5000rpm+ but no slippage.

Would like to know as much as possible before I tear it down. Am planning on new Slave, Clutch, PP, Fly, Pilot Bearing, etc... Would like to get it the first time I'm in there for sure..!

The Throw-out bearing is in the Slave, right?
What is this damn vibration/buzzing sound..? Coming from the bellhousing..
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Old Dec 3, 2002 | 04:11 PM
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Default Re: Pilot Bearing Failure Experiences?

Terry, After I installed my Moser 12-bolt and stock steel driveshaft, I got a nasty vibration under the tunnel. could this be what you are refering to as well?
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Old Dec 3, 2002 | 06:50 PM
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Default Re: Pilot Bearing Failure Experiences?

If you're putting in a new clutch you'll know soon enough if your pilot bearing is shot or not. I replaced my clutch last winter and my pilot bearing was almost disintegrated. I had to chisel it out too, what pain in the ***. At least it's not an expensive part. If you're changing the clutch replace the bearing whether it needs it or not. Save yourself some hassle down the road.

Chris
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Old Dec 3, 2002 | 06:56 PM
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Default Re: Pilot Bearing Failure Experiences?

To answer your other question of what happens when the bearing wears down ... your input shaft goes into that bearing, the more it wears down the more play there will be for the input shaft ... which isn't a good thing.

Chris
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Old Dec 3, 2002 | 10:54 PM
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Default Re: Pilot Bearing Failure Experiences?

Car doesnt shift quickly anymore if its an M6, sort of whine-like noise when clutch is enguaged, it goes away when you push the clutch in, BAD vibes on the highway, and you can get it to stop by pressing the clutch in and out fast- recentering the input shaft.
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Old Dec 4, 2002 | 12:16 AM
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Default Re: Pilot Bearing Failure Experiences?

Mello - the throwout bearing is in between the slave, and the pressure plate fingers. I would certainly replace that. You should replace the pilot bearing also. I didn't on my recent swap, but the car only had 4000 miles on it.

<small>[ December 04, 2002, 12:18 AM: Message edited by: LOnSLO ]</small>
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Old Dec 4, 2002 | 01:07 AM
  #9  
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From: Centrifugal City
Default Re: Pilot Bearing Failure Experiences?

Hi everyone.

Found my problem tonight.
Looks like I broke ANOTHER torque tube.
Going for #3 now.

Gonna do the clutch, pilot, slave, trans mount and will pop in the 3.90's at the same time.

Cripes, all I run are 335 street tires! This is the 2nd TQ Tube my Stage 3 Kevlar disc killed. Will see how the Ceramic does. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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Old Dec 4, 2002 | 07:46 PM
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Default Re: Pilot Bearing Failure Experiences?

Anyone have part numbers for the pilot/throwout bearings? Aprox. cost also.
Thanks
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Old Dec 4, 2002 | 09:35 PM
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Default Re: Pilot Bearing Failure Experiences?

Throwout bearing comes in/with the Slave. Around $85-100. SPEC sold me an OEM pilot bearing for possibly as low as $5.oo I think. Gonna replace the tranny mount too. WTF.
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Old Dec 4, 2002 | 10:54 PM
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Default Re: Pilot Bearing Failure Experiences?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong>Throwout bearing comes in/with the Slave. Around $85-100. SPEC sold me an OEM pilot bearing for possibly as low as $5.oo I think. Gonna replace the tranny mount too. WTF.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Okay great so if I already have the 02 LS6 slave then I have the throwout bearing, just need the pilot bearing.
Thanks <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
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Old Dec 5, 2002 | 09:11 PM
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Default Re: Pilot Bearing Failure Experiences?

AC-DELCO #15680264 for throw-out bearing for M6 TRANY
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Old Dec 7, 2002 | 08:19 AM
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Default Re: Pilot Bearing Failure Experiences?

This is pilot bearing part# 14061685
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Old Dec 7, 2002 | 08:41 AM
  #15  
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From: Centrifugal City
Default Re: Pilot Bearing Failure Experiences?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by c5jim:
<strong>AC-DELCO #15680264 for throw-out bearing for M6 TRANY</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Am I incorrect assuming the throw-out bearing comes with the Slave?
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Old Dec 7, 2002 | 10:26 AM
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Default Re: Pilot Bearing Failure Experiences?

TOB does not come with the slave. They come new with clutches. Either that or you would have to buy a new one seperatly.

Clutches are the the only part that includes a TOB.

Jason
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Old Dec 7, 2002 | 04:40 PM
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Default Re: Pilot Bearing Failure Experiences?

Each time I ordered a new slave I recieved a TOB already installed on the slave.
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Old Dec 7, 2002 | 06:02 PM
  #18  
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Default Re: Pilot Bearing Failure Experiences?

Researched online. Didn't save the doc. The Slave includes a TO bearing and was confirmed by my mechanic. You can purchase a TO bearing separately from GM also, but it requires a complete disasembly of the Slave to re-install it. It's normally less to just buy the new slave with one inside.
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