Re: Catastrophic Bearing Failure - Saab 900 Bulletin Board - Saabnet.com
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Re: Catastrophic Bearing Failure
Posted by BobD (more from BobD) on Wed, 19 Apr 2017 11:34:08
In Reply to: Catastrophic Bearing Failure, Paul D, Tue, 18 Apr 2017 10:54:15
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Not an unknown failure. A couple possible causes :
I believe it can be a sequence of pinion bearing noise that isn't noticed or decreases as bearings get very loose and then fail. When the bearings fall apart it allows the pinion gear to climb on top of the ring gear teeth and seize the differential. Lock up or fracture of the trans case are the result. I once bought a parts car that would roll forward till the gears jambed, a brief roll backwards would release them and allow some forward roll. I haven't seen the axle shafts shear.
posted by 98.125.194...
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