|   Help! Rust on my rotors... | AZ-X
Jul 16, 2002 7:36 AM | | Help! While I was in Rocky Point, Mexico, my rotors started to develop a thin layer of rust--possibly due to the combination of salt and water that was constantly in the air. I cleaned the rotors with steel wool and alcohol and they stayed clean for a while but, after the monsoon rains finally came to Arizona, they are starting to rust again.
Is this normal for "stainless steel" brake rotors? Should I not have used the steel wool? Is there a better way? I also cleaned the pads with fine sandpaper to make sure that there was no residue. My formerly silent Magura Martas are now starting to howl as well, even with the new pads--even when dry and riding for short periods on flat singletrack or the road. I changed the pads and this howling has not gone away. Do I need new rotors now? |
| You're fine | Pat T.®
Jul 16, 2002 9:26 AM | | I think what you have is build up or "glaze" on your pads. I did a couple of things to help with this. First take your pads out and run them across some 400g sandpaper to deglaze them, then chamfer the edge that hits the rotor first. So instead of a sharp edge hitting the rotor you'll have that edge hitting it, this will cause less chatter in the pads (chatter causes harmonics, harmonics causes howling). Don't take a lot off, just enough to break the edge. Your rotors will be fine, just ride.
Pat T.® MCM #69, MSPS #003 |
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