Please HELP!!! I am going to change my bearings this weekend. Can
anyone give me some brief instructions and what to watch out for.
Also, am I going to need any special tools or will regular pullers
another thread "somewhere" said you need the mother of all presses to
get the new ones in even if you can get the old ones out. Think for a
moment about having no wheels whilst you solve it, eg alternative
transport, or how you will get the car to the dealers mid-job if it goes
pessimistic but a relvant risk from a non-technical project
manager......and good luck.
Rear wheel bearing? You need a special socket tool to get your wheel bearing
out. Other than that... normal tool including a monster prybar to knock out
the CV joint shaft. Lots of patience and keep your finger away from the half
shaft when removing or installing it.
Thank you for the reply. Is the special socket you write about for
taking the center nut off? Once the big center nut has been removed
and the half shaft disconned at the diff, will the half shaft not slide
out towards the diff? Is this where you need the big pry bar to slide
the half shaft out? you mention about keeping your finge clear- What
can bite you?
The center nut that you see from outside in the center of the axle is to
hold the half shaft in... What really hold the wheel bearing in is a monster
nut in the rear that can only be accessed with the half shaft out.
The half shaft must be pried out toward the differential... since there is
very little margin of movement... pry bar is a necessity. What can bite your
finger? If you try to move the halfshaft out of the hole and the prybar
slipped off... it will bite your finger off... well, enough to send you
hollering if not hospital.
The 124 and 126 have waaayy different rear wheel bearings. The 126 is
similar (if not the same) as the 116. The 124 has a one piece bearing much
like that used on the front of front wheel drive cars.
In my experience the 126/116 rear bearing is much easier to replace than the
Chas, the 126 rear wheel bearings and hub flange shaft(short) are
secured by a slotted nut of 55mm outside dia as Tiger pointed out. The
slotted nut has four (4) slots. Besides the special tool required, could
you please elaborate on how you would pull the hub flange shaft out of
its carrier? I understand that the inner bearing (smaller one of the
two) is press-on to the shaft. Was told that its tight?
It sure sound simple enough, but I dreaded to venture into the
unknown;-)) Yes, MB manual shows using a slide hammer,don't own one, for
removal and uses a special installer to install the bearing initially
and using the specially purchased $ocket to snug it up to final setup!
At 210K kms, I "itched" to want to repack those bearings while there ;-))
Thanks for sharing, Chas
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