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173 has killed 2x N/S rear bearings in 3 months!



len_beach

ClioSport Club Member
  E92 M3,172 track car
Evening guys. Long time, no see.

The bullet is still in my possesion (just) and has failed its MOT on a few niggly points today, 1 being the N/S rear bearing.

I first changed the rear bearing about 3 months ago after it gave way spectacularly around a roundabout and ended with the rear wheel having 2 inches of lateral movement.

The old bearing literally fell off. At the end of the stub axle was a washer with a tapered lip which I assumed should be there but I couldn't remember how it should sit at rebuild time.

I fitted the washer flush to the back of the stub axle with the taper pointing towards the wheel sitting inside the new bearing. This bearing died abut 4 weeks later.

I rebuilt it again but the new bearing has now gone.

Can someone confirm the correct configuration and also the correct torque setting.

Thanking you.
 


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