

| Subject: | Re: Solving disc brake noises! |
| From: | Chris Mills |
| Date: | Mon, 9 Sep 2002 12:07:07 -0500 |
Thanks - I didn't ask the question but I was going to have to do this maintenance soon. At 11:15 AM 9/8/02 -0700, Doktor Tim wrote: >Steps to follow for noise free disc brakes. > >1. Verify surface condition or rotors. As long as there are no sharp edges >they can be reused. NEVER turn rotors. If they have glazing or rough or >sharp edges in any way, replace them. > >2. Verify rotor thickness. If they are within 1/2 mm of minimum, replace them. > >3. Use a wire brush and brake cleaner to get the calipers clean. Primarily >the side slots the edges of the pads ride against. > >4. Use Textar, ATE or VW pads. Never use metallics. Non-metalic PBR Deluxe >pads also are OK. > >5. With used rotors, use a file to bevel the upper and lower edges of the >pads so they will not ride on the wear ridge of the rotors. > >6. Use 80 grit emory cloth to scour the surfaces of the rotors. Helps the >pads break in. > >7. When trying to solve noise and reusing worn pads, scour the friction >surface to take the shine off them. > >8. Use the special Sta-Lube synthetic brake grease (high temp >non-migrating) on the metal sides of the pads, the top of the pads where >the spreader spring rides, on the retaining pins, and on the back of the >pads where they contact the caliper pucks and/or frame. If backing plates >are original for the application, put a film of this special grease on both >sides of the plates. You need more than a thin film, but certainly not gobs >of lube. Be very careful not to get any of this lube anywhere on the >friction surfaces. > >9. Break in new pads properly. Drive at 50mph. Use the brakes to quickly >reduce speed to 30mph. Drive a half a mile to cool the brakes, then repeat >10 times. What this does is heat the pads sufficiently to drive off the >adhesive volatiles holding the fiber matrix together without overheating, >and mate the new pads to the rotors. > >10. Flush and bleed the system yearly with DOT 4 fluid. This will stop flex >hoses from swelling and caliper pucks and master cylinders from sticking or >leaking. Don't forget to flush and bleed the clutch as well for the same >reason. > >In hundreds of brake jobs over the past 10+ years, I've only had two come >back for squeaks using this procedure. One was a case where the rotors >were worn to a point just a hair wider than minimum. The other was a case >where the vehicle was being driven daily on a very dusty road and dried up >the lube. > >At 09:53 AM 09/08/2002, you wrote: > > >>As a side note, can anyone recommend a brake pad brand with might help >>reduce the annoying LOUD squeal I get when my brakes get hot? Chris M. <"Busbodger" of "TEAM SLOWPOKE"> Cookeville, Tennessee ICQ# 5944649 scm9985@tntech.edu '78 VW Westfalia (67 HP -> that is...67 Hamster Power) '65 Beetle - Type IV powered '99 CR-V AWD station wagon '81 CB900 Custom moto-chickle 2.5 Corvair engines for my Trans-vair Conversion
Have something to add on this topic today? Revive this thread in the forum »