[V6-12v] How to get the rear brake discs off
tomchr at ee.washington.edu
Sun Jun 12 17:17:05 EDT 2005
Thanks a bunch for your help. Armed with more confidence I went to work
today with a 5 lb hammer. I actually didn't need to hit the discs that
hard, but the hammer did pack a little more umph than my 2 lb deadblow.
After a couple of taps with the hammer, the discs popped off. The hub
surface was pretty clean actually. Brushed it a bit with a wire brush and
mounted the new discs. Obviously, I'd returned the rental tool for pushing
the pistons in, but they only needed a little nudge and a pair of pliers
were used to turn the pistons. I wouldn't recommend this for the full brake
job where the piston needs to be moved 1/2 inch or so. If the pliers slip
they'll either stab your hand or tear the rubber boot on the caliper. Both
undesirable events. Paying the $8/day for the tool is a better option (or
$50 to own it on eBay).
Torques in case anybody cares:
Big hex (17 mm head) bolt that holds the bracket: 125 Nm. Clean the ribs on
the head before interting the bolt.
Small hex (15 mm head) bolt holding the caliper to the guide pins: 35 Nm.
Always replace this bolt (or apply blue locktite).
The guide pin has a 17 mm hex. A regular box end wrench fits nicely. No
need for skinny wrenches.
Socket head (8 mm Allen key) bolt for the bracket: 60 Nm.
Small hex (13 mm head) bolt holding the caliper to the guide pins: 35 Nm.
Always replace or apply blue locktite.
The guide pin has a 15 mm hex. Regular box end wrench works.
Wheels: 110 Nm.
Torque specs from Bentley. Use at your own risk & expense.
More information about the V6-12v