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Old 09-19-2010, 07:51 PM
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Throw-out bearing question?

Have tried to do an extensive search for this but kept getting the JK issues. Let me build the story. Last October my TJ stopped being able to shift into gear. So since it had 120,000 miles on it I figured replace the clutch while I'm in there. Got the replacement LuK kit from dial a clutch and put it in over the weekend. The throw-out bearing was totally disintegrated but the Pressure Plate and Driven Plate looked good. After that, no issues, shifted great. Now, almost one year later I think it is going out again. With the clutch pushed in, it sounds like a BAD squealing belt. Very rarely does it make the squeal with the clutch out and in neutral. Sometimes it goes away but I can feel a different pressure on the clutch pedal, it is stiffer. It seems to only happen when I drive on the highway for extended periods. I have 4.56 gears with 33x12.5 tires. So in 5th gear I'm pulling around 2700rpm. I was just wondering if anyone with a ton of manual transmission experience could answer a few questions I have:

1. Could there be a deeper issue here to destroy 2 TOB? Output shaft out of balance? Something going on in the XSMSN?
2. Could the MML (1") and BL (1.25") I have on be causing a problem with the drivetrain?

Any suggestions would be appreciated. I don't mind dropping the XSMSN but I want to fix this problem for good. I just can't believe that I've lost another TOB. Do they make a HD TOB and Pilot bearing for the TJ? Thanks
"The Art of War teaches us to rely not on the likelehood of the enemy's not coming, but on our own readiness to receive him; not on the chance of his not attacking, but rather on the fact that we have made our position unassailable". Sun Tzu

79' Cherokee Chief,83' CJ8, 95' YJ, 97' XJ.
02' TJ - B&M shifter, JKS 1" BL-1"MML, 2" skyjacker, 33x12.5, 4.56 Grs.
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Old 09-20-2010, 05:00 AM   #2
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Pose your question with Luk. Under a year, they may warranty it.


Curiosity was framed, poor judgment killed the cat
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Old 02-20-2011, 11:14 PM   #3
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did you grease the TOB? i have heard of someone a while back happend to look over it and it went out quickly. just and idea how you get it worked out
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Old 02-21-2011, 01:21 AM   #4
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Did the TO come in the kit or did you have to buy it separately?

Could be the wrong one.

For the 3 fingered pressure plate - Borg and Beck type - it needs a flat face on the TO.

The multi-fingered diaphragm pressure plate needs the one with the rounded face.

The face is the part that touches the fingers.

Unless it has a Zerk fitting, it needs no grease. Simply smear a tiny dab on the face - too much it'll fly off and get on the disc.

When you replaced the clutch, did you also replace the pilot bearing or bushing? (In the back of the crankshaft where the input shaft rides.)
It's no wonder the country is falling apart - stupidity abounds!
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Old 02-21-2011, 04:03 AM   #5
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What kind of wheeling you doing, are you running a lot of muddy water type stuff? They are a sealed bearing but you never know.
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