How to guide to replace front Brake Pads and Rotors on a W123 - PeachParts Mercedes-Benz Forum

vstech · #10 11-25-2008, 10:14 AM

Quote:

Originally Posted by 79Mercy

As for the rear bearing seal just pry it out with a flat head, its going to break so just buy a new one.

this should read the Inner bearing seal... anyway, here's what I have done for years professionally and at home. it always worked for me, and it DOES NOT DAMAGE THE SEAL OR THE BEARINGS... if done carefully.

after you have popped out the outer bearing and set it in the dust cap, put the lock nut back on loosely, now gently pull the hub over the nut and rest the inner bearing against the lock nut, now slide the hub on a bit then pop it out against the nut. this will force the inner bearing race against the surface of the grease seal and pop both out of the hub.
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warning!!! if not done correctly, you can damage both the inner bearing and the race of the inner bearing. so fully inspect both after the bearings are out, and be prepared to drive out the race and replace the bearings, race and seal. !!!
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you should then clean thoroughly, the inner, outer bearings, and completely remove all traces of grease from the hub, and the spindle. unless you are absolutely sure you have exactly the same brand and weight of grease as what is already in there. most high pressure greases do not mix well...
then re pack the bearings with your preferred grease and pack a thick layer of grease inside the hub. DO NOT FILL THE HUB WITH GREASE!!! just a layer around the inside of the hub.