Re: Warping rotors-help!
I've been there! Back in the 80's, I had a Honca Civic. When I first serviced it, I ended up changing rotors every 2 months. I would go down the local machine shop and have the rotors turned as I was used to with my other cars. However, Honda was different. Whether I changed the rotors to a new one or had them machined, they turned out to warp prematurely. Then I discussed the issue with the dealership and learned that the disks must be grinded mounted on the car. The procedure is as follows: The caliper is unmounted and an electric grinder is mounted directly on the brake mounts. Then the car is started and put on drive so the wheel turns. The grinder is turned on and grinds a true surface over the brake rotor. Any effect of a possible misalignment between the mating surface of the rotor and wheel hub is eliminated. After I had my rotors grinded this way, I did not have brake problems anymore.
My opinion on Honda brake design? I consider their brakes to be of inferior and poor design. I have owned several General Motor cars and a Nissan over several years and done brake jobs on them. It is a simple matter of changing brake pads and sending the rotors to be machined by an independent shop for a few dollars. The fact that Honda requires you to machine their rotors while mounted on the car speaks for itself. No do-it-yourselfer can afford the tooling required not to mention the higher cost of having it done at a Honda dealership. I now own a 1998 Honda Odyssey. Hoping that the brake design had since improved, I did my own brake service and sent my rotors to be turned at a machine shop. Sure enough, after driving a month, my rotors are already showing signs of warping. Turning to the OEM Honda repair manual, it clearly states that the rotors are to be machined mounted on the car.
My advice is to have the Honda dealership grind your rotors. I have discovered that some Honda dealership have not invested in the special equipment required to grind the rotors. You should specificaly indicate to them that you want the rotors grinded mounted on the car.
Last edited by Jan616; Aug 9, 2010 at 05:57 PM.
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