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  #46  
Old 03-10-2009, 11:35 PM
BodhiBenz1987's Avatar
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Quote:
Originally Posted by Matt L View Post
You can buy a bearing repacker, or you can do it by hand by putting grease in your palm and massaging it into the edge of the roller carrier.

Before you put new grease in, you must clean off all traces of old grease and any dirt. Dry the solvent off completely, but NEVER spin the bearing with compressed air to dry it (not only is it easy to damage the bearing, it's possible to lose an eye).
I'm going to do this job on my 240D soon, too. Stupid question ... how do you clean the old grease off? Also, is it worth it to get MB grease, or would grease from NAPA be sufficient?

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  #47  
Old 03-11-2009, 02:54 AM
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Re front wheel bearings.
I just cannot understand all this carry on about wheel bearings, as i have posted before i have owned my 300D since 1990 it has been a daily driver for about 14 years ,it has covered a big mileage ,i have replaced front rotors once and repacked the original bearings at the same time ,thats all ,apart from pads of course
It's got me beat why folks have all this trouble ,am i just lucky?
cheers Hartley
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  #48  
Old 03-11-2009, 08:08 AM
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Quote:
Originally Posted by hartley View Post
Re front wheel bearings.
i have replaced front rotors once and repacked the original bearings at the same time
I think you hit the nail on the head there. Whenever I do the brakes on a car I pull the drums or rotors to have them cut or replaced and when re-installing clean and repack the bearings. Many DIY'ers will pop the wheel off, replace the pads, and put the wheel back on which results in wheel bearings not being serviced. The service interval for bearings is generally longer than brake pads so if you do a proper job when servicing the brakes there should never be an issue with the bearings.
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  #49  
Old 03-11-2009, 11:11 AM
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Location: Ashland, MA
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Quote:
Originally Posted by hartley View Post
Re front wheel bearings.
I just cannot understand all this carry on about wheel bearings, as i have posted before i have owned my 300D since 1990 it has been a daily driver for about 14 years ,it has covered a big mileage ,i have replaced front rotors once and repacked the original bearings at the same time ,thats all ,apart from pads of course
It's got me beat why folks have all this trouble ,am i just lucky?
cheers Hartley
One man's carry on is another man's or woman's question.

I was just looking for advice. That is what I use this forum for, an exchange of information. Thanks for letting us know what you did and for all the great help.
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  #50  
Old 03-11-2009, 11:13 AM
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Quote:
Originally Posted by fdanielson View Post
I think you hit the nail on the head there. Whenever I do the brakes on a car I pull the drums or rotors to have them cut or replaced and when re-installing clean and repack the bearings. Many DIY'ers will pop the wheel off, replace the pads, and put the wheel back on which results in wheel bearings not being serviced. The service interval for bearings is generally longer than brake pads so if you do a proper job when servicing the brakes there should never be an issue with the bearings.
Front rotors on the 124 are not supposed to be cut or turned, just replaced.
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“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss
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  #51  
Old 03-11-2009, 11:56 AM
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Quote:
Originally Posted by BodhiBenz1987 View Post
I'm going to do this job on my 240D soon, too. Stupid question ... how do you clean the old grease off? Also, is it worth it to get MB grease, or would grease from NAPA be sufficient?
Lots of towels for the hub & races. Bearings can be cleaned with any solvent like brake cleaner. Just have to make sure it's dry before repacking.

Any good high temp grease will do.

Danny
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  #52  
Old 03-11-2009, 12:02 PM
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Quote:
Originally Posted by pawoSD View Post
The FSM says to re-pack the bearings every time you do a rotor change. (I don't see why anyone wouldn't do that, its so easy to do)
Sure, during a rotor change, but I've never changed a rotor on any of my MBs in the last 20 years.
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  #53  
Old 03-11-2009, 01:23 PM
Inna-propriate-da-vida
 
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When you are doing brakes on a used car, always check the bearings.
It's not hard, and it'll help you sleep better knowing they are safe.
Any job you are doing to a used car should be parlayed with other jobs that require removing the same parts. Not because it's in the service manual, but because it's common sense to understand what is worn out and what is not.
Let's say the PO liked to ride the brakes, maybe they cooked the grease by overheating. You aren't going to see that UNLESS you take it apart and check. I find it very hard to believe that someone working in the repair field for 30 years wouldn't do the same. That's probably one of the reasons the dealer put it out there(that and it's easy money). Problem with dealers, they typically use standardized repair times for jobs, but they often don't remove the overlap. Either do it yourself, or find a reputable indy who will only charge the extra time for fixing things "while we're in there"
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  #54  
Old 03-11-2009, 02:58 PM
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In 1977 on an Airstream trailer caravan in Mexico with my parents (150 trailers) on the second day we stopped along the road for lunch, and just for the hell of it I went around and felt the hubs (new Ford pickup with less than 3000 miles on it). Three felt normal; the left front was way hotter. We opened it up and the rollers started falling out, dry as dust, apparently never lubricated at the factory. We got out the spare parts Airstream recommended that we carry, and found the spare bearing purchased from a California Ford dealer was the wrong one. Our "Green Angel" Mexican Tourist Bureau escorts went to the nearest town and woke up the junkyard owner from his siesta and had him pull a bearing for us. It was visibly worn, but the right one, and served to get us to Mexico City where we got a new one installed. Steve
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  #55  
Old 03-12-2009, 11:28 PM
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To Bio300TD driver
Thank you so much for thanking me for my contribution,It's nice to know one is appreciated .........cheers now hartley

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