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Rotors, Bearings

replace rotors and bearings
Year(s):  80-91
Model/Type:  Vanagon

From:  Ken Wilford

Symptom(s):  Noisy or hot bearings, worn rotor

No matter what you are going to need to install races in your
new rotors. This can be done by you if you have some large sockets that
are about the same size (a hair smaller in diameter) than the outside
diameter of the races. You just use the large socket and a hammer to
tap then down into the rotor until they bottom out. Be sure that the
narrow end of the taper is facing up towards you so that you will be
able to install the bearings when you are done. Or you can take the
rotors to a machine shop and they can press the races in (should be
pretty cheap and quick). Once you do this then you still have to
properly pack your bearings. Get some rubber gloves and some wheel
bearing grease that is made for front disc brakes. Now put a little on
one hand and with the other hand hold the bearing with two fingers and
press the bearing down into your other palm where the grease is. You
want to push the grease in one side of the bearing so that it comes out
the other side. If you do it right you will see little bumps of grease
coming out of the opposite side of the bearing where it has pressed all
the way through. Do this around the entire circumference of the
bearing. Lightly smear grease on the bearing race and put a little in
the area between the two bearings in the rotor (like four tablespoons).
Install the inner bearing and then install the seal. Clean the stub
that goes through the middle of the rotor. Now lightly smear it with
wheel bearing grease. Slide the rotor into place. Now slide the outter
bearing into the rotor. Install the large washer. Now put on the new
front hub nut. You want to turn the rotor while you tighten this to be
sure that nothing is binding up or getting cocked. Once you tighten it
to the point where the rotor is getting a little hard to turn go about
another 1/2 turn. Now slack off the nut just a little. Take a screw
driver and try to push on the large washer that is in the center of the
rotor. The "torque spec" on these front rotors is to keep loosening the
nut a little at a time until you can just start to move the washer by
pushing on it with the screw driver. Now peen the front hub nut above
and below with a punch to lock the nut. Reinstall your grease cap and
your rotor is completely installed.

Rotors should only be replaced in pairs. You should also replace your
front brake pads at the same time. Be sure to clean and lube the guide
pins for your caliper as well to ensure they slide well (86-91 Vanagon

I hope this helps. If I can supply any more parts for you please let me

Ken Wilford
John 3:16

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