Yes, indeed, if a bearing is bad enough to replace, so are the races. I
used to (45 - 50 years ago) drive my Chevy races out using a piece of wood
as a punch - very carefully - always worked great for me. I've never
removed a Mercedes race, though - lucky enough to not have to yet.
Wilton
----- Original Message -----
From: "Peter Frederick" <psf...@earthlink.net>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Wednesday, May 13, 2009 10:44 PM
Subject: Re: [MBZ] Wheel bearings cont...
You should always replace the races as a matter of course -- if the
bearing rollers are bad, so are the races, and they will eat a new set of
rollers in a few thousand miles. BTDT.
You can drive them in and out with a soft punch, or splurge on the MB
driving tool. Have a care to get them in right way round, and make SURE
the seat is clean and that the new race is seated properly.
Timkens fit tighter and are harder to install than SKF, but either will
work. Available at McParts. Wheel seal, however, is not.
Do replace the seal each time you take the bearings out, even if just for
inspection. This is the usual failure point -- seal wears, water and
salt get in, bearings go to the bad place.
Peter
On May 13, 2009, at 7:03 PM, Curt Raymond wrote:
So the inspection report says its the front wheel bearings. My wife says
he said the passenger side was the worse of them but both were bad. I
wonder if they're just loose, I need time to jack it up and see.
I'd done the passenger side last fall, could be I got them too tight but
the car has probably 4500-6000 miles on those bearings. Maybe 6500 on
the driver's side which my Indy had done. As I say both had failed badly
before being replaced.
I asked last time I went through this but nobody replied; are the
bearing races in the hub replaceable or would I need a new hub?
-Curt
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