Eric,
This is not difficult. The hardest part will be getting the dust cover
out. It's a metal cap
that interference fits inside the rotor hub. It has a threaded end,
which has probably
been buggered-up by a DPO. If so, you can just pull it out with
pliers. If not, and
you want to save them, you can build a tool like I did. I brazed the
correct nut (5/16" fine,
I think) on the end of a length of allthread (threaded rod). Then,
screw the nut onto the
threaded portion of the dust cap and pull--I built a bracket from an old
set of bicycle
training wheels and used another nut on the allthread to extract the cap.
Remove the brake caliper and wire it up to the shock arms (don't let it
dangle). Check
the rotor for end play (pull straight out). There should be little or
none, if there's a lot
then you've found your problem (if it's extremely tight that could be a
problem, too).
Then, undo the spindle nut. It's a big nut, probably 1&1/8 or 1&1/4
inch. It should be
torqued down tight. Then, gently pull on the rotor assembly. It should
slide off the
stub axle.
Examine your bearings and races for signs of wear (checking, blueing,
etc.). Discard
if not perfect.
There's been a recent thread about re-installing the bearings and
setting up the shims
and space. Check the archives.
Cheers,
bs
Frenken, Eric wrote:
>Alan,
>
>is it a big deal to remove the hub and shim the castle nut? With other words,
>can it be done by the average home mechanic? What is the right procedure? Can
>you recommend a piece of literature for that?
>
>Thanks in advance.
>
>Eric
>www.brits-n-pieces.com
>
>Eric -
>
>Sounds to me like either your bearings are shot or your castle nut on
>the axle is not shimmed properly and is too loose.
>
>Either way you cut it, you need to remove the hub and inspect your
>bearings, and then reassemble and repack if all is well. Be sure the
>castle nut is shimmed properly so that the hub doesn't spin loose like
>it is doing now.
>
>The noise you are hearing is probably from the disc brake contacting
>the calipers or the rear dust plate. When you step on the brake it
>recenters the disc and the squeal goes away.
>
>This is potentially a very costly repair if you don't deal with it
>RIGHT NOW!! Don't drive the car until you fix the squeal.
>
>If that doesn't fix your noise problem, come back to the list, it
>could also be that you are missing anti-squeal shims and your caliper
>pistons are corroded and sticking on... but that is less likely that
>what I've described above.
>
>Regards,
>
>Alan
>
>'53 BN1
>'53 A90
>'64 BJ8
>
>
>
***************************************************************
Bob Spidell San Jose, CA bspidell@comcast.net
'67 Austin-Healey 3000 '56 Austin-Healey 100M
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