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Wheel Bearing Replacement

4705 Views 6 Replies 6 Participants Last post by  Simon S
Has anyone successfully changed the front (or rear) wheel bearings on their Elise?

I'm having a tough time getting the hub out of the bearing. I have to do this before I can get the bearing out of the ally bearing mounting block.

I've tried soaking the bearing & hub in silicone penetrator for a couple of days and then using a pillar drill (just the vertical rack) to try to push the hub through the bearing, but it won't budge.

Is the best approach a hydraulic press, or a good whack from a hammer, or something else?

I don't want to damage either the hub or the bearing block. The bearing is toast either way.

Also, when fitting a new bearing, is it a good idea to grease the mounting block beforehand to prevent the bearing corroding in the block or the hub in the bearing?

Thanks!
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two distint issues here...

1) - getting the flange out of the bearing - this is a press job, should not take too much load if doen right, but a 5 tonne press is essential.

2) - getting the bearing out of the upright, with the Ali uprights, heat them to ~200C first, then it's way easyer to push it out, same goes for re-fitting, replace on the the C clips, then heat the upright, then drop the bearing in, normally they will fall in, somethings a rubber mallet is needed just to make sure.

the steel uprights on latter cars (S1) just requite brute force with a press, heating helps, but not to the same extent as ali (different expansion rates)
 
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