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Unread 06-27-2013, 01:47 PM   #1
war6191
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1979 CJ7 
 
Join Date: Aug 2011
Location: los lunas, NM
Posts: 30
throw out bearing issue

Recently replaced entire clutch assembly (Napa) in my cj7. It shifts well, hooks up
Good and is quiet. I have maybe 1200 miles on this job and am noticing onset of lite chatter with involuntary movement at the throwout arm. If I loosen the settings for pedal free play according to the manual, the bearing sounds worse. Tighten linkage a bit and it lessens. I realize this means a bad bearing but why would it fail so soon? I will I'd assume, be replacing it but it isn't looked forward too and I do not want a repeat event. Any ideas?
79 cj7. 258 TBI. T 176 with D300

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Unread 06-27-2013, 03:07 PM   #2
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 5,073
Did you replace the pilot bearing in the flywheel?
LG
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Unread 06-27-2013, 03:23 PM   #3
scrapman
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1984 CJ7 
 
Join Date: Apr 2010
Location: Tyler, TX
Posts: 703
Quote:
Originally Posted by LumpyGrits View Post
Did you replace the pilot bearing in the flywheel?
LG
+1. When my pilot bearing dried out, it sounded like baby birds living in my clutch.
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Unread 06-27-2013, 03:34 PM   #4
LumpyGrits
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1985 CJ7 
 
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Location: The Mojave Desert Palmdale Ca. U.S.A.
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That is why I went with a roller bearing instead of the bushing
LG
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Unread 06-27-2013, 05:10 PM   #5
war6191
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1979 CJ7 
 
Join Date: Aug 2011
Location: los lunas, NM
Posts: 30
Yes' new pilot brushing. I'm getting a throb like feel and movement at the throwout arm, like it isn't riding on the bearing evenly or something...then when pressure is applied to the bearing it quites down. I wonder if I fried it somehow, maybe had it set too tite
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Unread 06-27-2013, 05:24 PM   #6
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 5,073
What is the pedal freeplay set at?
I keep mine at about 1 1/4 inches.
As the fricton plate wears. You lose the f'play.
LG
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Unread 06-27-2013, 06:12 PM   #7
JeffreyCharles
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1976 CJ5 
 
Join Date: Feb 2009
Location: Vallejo, CA
Posts: 580
Was the pressure plate torqued down properly and in sequence to prevent it from being (even just a bit) warped?
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http://jeep.smallcraft.net/
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Unread 06-27-2013, 06:22 PM   #8
Dougyfreshh
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1985 CJ7 
 
Join Date: Nov 2010
Location: South Gate, CA
Posts: 39
Are your inner and outer return springs for the clutch fork in good condition
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Unread 06-27-2013, 06:26 PM   #9
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 5,073
Was the flywheel resurfaced for this new clutch?
CONFIRM..new pressure plate, new friction disc(you do have it in the correct way)and new T/O bearing. Is this correct?
LG
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