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Old 12-09-2011, 06:03 AM
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Quote:
Originally Posted by anthony1k View Post
There you go.

I’m going to assume that the carrier is off the car. For the job I used a Harbor Freight 12 ton press.

First I removed the brake shield. It is held by 3 small (10 mm?) bolts. I placed the carrier face down and balanced it flat on several stacked pieces of wood. Balancing the carrier flat at different points was actually the hardest part of the project. I used a deep socket to pound the hub out of the bearing. It took a heavy hammer and several strikes to break it loose. Once the hub is out the circlip that is in the front of the bearing must be removed. In my case it was rusted inside the groove and impossible to compress. I used a Rotozip to cut it in three pieces and I was able to remove the pieces and clean the groove. I tried to use a bearing removal set to pull out the bearing but it wound not badge. So I turned to the 12 ton press. Balancing the carrier on the frame of the press with enough space underneath to clear the bearing was pretty tricky. I used the biggest socket in my tool box to press against the bearing. It took almost the entire force of the 12 ton press to break the bearing loose from the carrier and slide it out. Contrary to what others said, in my case the old bearing came out totally intact. Before pressing in the new bearing, I used a 600 sandpaper to gently clean any surface rust and dirt from the inside of the carrier. I then balanced the carrier on the press frame again. Assorted pieces of wood were used to set the carrier flat on the frame and center it underneath the shaft of the press. This is pretty tricky as the back of the carrier is anything but flat. Before pressing in the bearing I applied a light coat of Loctite blue on the inside of the carrier. The bearing must be pressed in a certain orientation. There is a 1/16 inch notch around the outside on one side of the bearing. The bearing must be pressed in so that the notch is on the inside of the carrier. The new bearing was rested on the carrier and the old bearing was placed on top of that. A sturdy piece of flat metal was used to press against the old bearing and drive the new bearing all the way inside the carrier. A new circlip was used lock in the bearing in place. The hub was pressed in similarly inside the bearing. A light coat of oil was applied prior pressing it in.

Basically that was it. The whole job, including removing and reinstalling the carrier, took about five hours. A second pair of hands helping to balance the carrier at different would have saved a least an hour. But even without an assistant this was pretty straight forward. Obviously the hydraulic press is essential. A better quality bearing removal tool might have worked too.

I hope this helps. Good luck.

Cheers
Nicely explained and the proper way to do it.
Even at the dealer,we have to sort to the press because the Bmw special tools just cant budge it..
What other parts did you replace,apart from bearing?
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