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I've gota 90 740 turbo. I've finally gotten ahold of my front wheel hubs and brake rotors. They arrived the day before I left for a 6-day hiking trip, what good timing! I'm not going to get into that.
I've read over the FAQ and I haven't really found much on the installation and replacement. I've got the following items to install: New Hubs(with sensor ring) and rotors for both sides (and crown nuts and dust caps), new slide pins and mounting bolts for the calipers (and silicone slide lube), new stainless steel braided brake lines, new fluid.
I'm under the impression it's fairly easy - the spindles don't move, so unbolting the rotors should be easy. I've bought a cheap torque wrench and a 36MM socket for re-install. I should just uncompress the piston, remove the calipers, remove the rotors, and "the hubs should slide off". Whether that means I need a 2-pound hammer to remove them is not clear to me. Then I'll replace the brake lines - I plan to plug the hole or attach my bleed can (mason canning jar + vacuum tube) to the line while each is unattached.
I remember reading a post about someone having to rebuild his master cylinder to reset a sensor related to bleeding his brakes (it measured fluid levels in each side). I think this was due to air in the lines moving to the master cylinder and I don't want to deal with that. I frankly don't have the time, money, or knowledge to deal with that.
The installation is supposed to be easy; the bleeding - I have a brother to pump the pedal and I'll do the rest. The caliper mounts I haven't disassembled before, but they appear simple.
Also, Chilton's mentioned something about removing and flushing the master cylinder (or the reservoir, I'll obviously reread it). Is this necessary?
I've read a bunch of opinions about "breaking in my new rotors". I got Brembro's I think and there are no instructions with them, so I don't know what the approach is supposed to be. There has been mention of needing to drive and slow to a not-quite stop and then continue driving and repeat the process 5-10 times. Is this bull or legitimate?
I also have to move the lugs from the old rotors to the new rotors. One of mine is bad already, but I read the proper way is to use a rubber mallet or pad a metal hammer to knock them through the back or the rotors. Installation was supposed to be "automatic" when I tighten the nuts on the tire, but that seems pretty odd. I would think I should tighten the nuts (to attach the lugs) before installation.
I'll appreciate any help I get,
Will
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1990 740 Turbo, on its way to stock specs, maybe beyond
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