Weird "Spinning" Noise From Tranny/TCase Area - Defender Source
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Old September 8th, 2010, 07:44 PM
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Weird "Spinning" Noise From Tranny/TCase Area

Rebuilt my t-case, now I have a "spinning" noise coming from the tranny/tcase area under the tunnel. It's really hard to explain (and I can email you the sound recording), but it sounds like a bearing race or collar spinning, or if you spin a washer on a bolt. It only happens when the clutch is engaged or on deceleration leading me to the tcase as the culprit. Anyone have any experience with a noise like this?
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  #2  
Old September 8th, 2010, 08:16 PM
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Quote:
Originally Posted by Wolf Fabrication View Post
Rebuilt my t-case, now I have a "spinning" noise coming from the tranny/tcase area under the tunnel. It's really hard to explain (and I can email you the sound recording), but it sounds like a bearing race or collar spinning, or if you spin a washer on a bolt. It only happens when the clutch is engaged or on deceleration leading me to the tcase as the culprit. Anyone have any experience with a noise like this?
so....

you think there's something spinning in your t-case? ... that can't be right...


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Old September 8th, 2010, 08:52 PM
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Quote:
Originally Posted by bharris View Post
so....

you think there's something spinning in your t-case? ... that can't be right...


Yeah, I know, it sounded dumb. Nothing is supposed to spin inside a t-case, right?
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  #4  
Old September 12th, 2010, 09:18 AM
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As a follow up, after tearing down the tcase again it turned out to be the intermediate gear bearings and crush sleeve. The shaft nut was not torqued to specs. According to the rebuild manual the nut should be torqued so that no end play is felt, however, that leads to the issue noted above. Per several rebuild articles in LRM and LRO, the nut should be torqued until slight rolling tension is felt while turning the intermediate gear. I did the second method at that corrected everything.
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Old September 15th, 2010, 05:06 PM
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This follow up should be in reference to the "spinning" noise. This noise ended up being the t-case front output metal dust cup working loose and spinning around the drive shaft intermittently. The clatter is the improper intermediate shaft torque.
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