Keep warping rotors, im really frustrated!, Getting warped for the 3rd time Options

[eliaz]

Ok, so having replaced my front discs for the third time I can notice that the rotors is being warped again. I have only driven 250 miles with my new set and I can now feel that they (or maybe just one of them) are slightly warped. I replaced the new discs with OEM toyota discs and EBC greenstuff pads. I have noticed that the right disc is much warmer that the left one. Ok, so I thought that the caliper is stuck somehow. I have overhauled all four calipers about 6 months ago. Today I took out the caliper and both sylinders, all seems fine and the slide without any prob. I can push them into the caliper body with just my fingers! I tried a testrun without no braking at all and I can say for sure that the right disk are warm (let's say about 115F), so the caliper are not retreating fully? Not working 100%? I have no more ideas, I really hope someone can help me. I am getting really frustrated

Edit: Oh, I've been really careful when braking.

This post has been edited by eliaz: Jun 4, 2006 - 7:01 AM

[vsideboy]

I wouldn't step on them hard, I would just drive with my foot on the brake (light to medium pressure) for a few hundred yards, that should be enough to get rid of any coatings, I just replaced my front discs and found that the pads were only braking on the outside half inch of the disc, this caused alot of vibration but now they are worn to use most of the disc the vibration has gone, can you see if the pads are using all the disc?

Sorry, I could borrow a Dial Indicator from work, not sure where you could get hold of one, most engineering companies would have them if you knew someone that works in that kind of business? Or a less accurate way is to remove the caliper, but not the bracket the caliper fastens to, keep a couple of nuts on to hold the disc firmly against the hub and spin it whilst looking at the gaps between the caliper bracket and the disc, this should show you where it is moving, then you can take the disc off and have a check underneath it at the high point for any debris or if the hub looks slightly bent?