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Be careful with CRC anti-squeak... Posted by TonyJ [Email]  (#407)  [Profile/Gallery]
(more from TonyJ) on Sun, 4 Jan 2004 08:53:25
In Reply to: Quasi's site has instructions, George, Thu, 1 Jan 2004 12:12:55 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I used CRC anti-squeak (not the spray type) on the backs of the new metal master pads I installed in our 93 about a year or two ago. Just yesterday, I had to replace the dust cover boot on one front caliper because of the following chain of events:
* The CRC had bonded to the dust cover, effectively glueing it to the back of the inner pad.
* As the pad wore and the piston extended further out, it pulled the dust cover out of the grove inside the bore of the caliper.
* That allowed water to get in, causing rust and binding of the piston.
* That resulted in a dragging brake.
* That caused squeaking (in spite of the CRC which became char-broiled).
* That brought on spousal complaints and she got to drive the Aero, which we usually spare from winter driving, for a few days until I could fix it.
I recommend coating the outside of the dust cover boot with brake grease (e.g. sylgard) before applying CRC or similar anti-squeak stuff.
Other points:
* The metal master pads do require a little warm up, but even my wife adapted to it.
* It is possible to replace the pads without undoing the guide pins that need a 7 mm allen. You just remove the two 19 mm-head bolts that mount the whole assembly to the hub carrier, then slide out the part to which the guide pins are connected.
* While you can get by without a 7mm allen bit, you will need a 9mm wrench for the bleed screw; this is the only use I have ever made of this wrench, which is omitted from most sets.
Good luck.
TonyJ 93CSEt 207K; 94 Aero 87K
posted by 24.34.16...
, Thu, 1 Jan 2004 10:23:02, Sun, 4 Jan 2004 08:53:25 <-- Viewing This Message
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