Warped front rotors! ? - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 10-25-2012, 09:53 PM Thread Starter
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Warped front rotors! ?

Hey guys, I've put in new rotors in the front because I had warped my stock ones. I put in drilled and slotted ones, and they seem to be warped again. I get bad shaking while braking from 80-50 km/h. Has anybody with an ex had the same problem? I do drive it pretty hard, but they shouldn't warp so easy. Is there a brake kit or something that u can order for the 6.0l?
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post #2 of 11 Old 10-26-2012, 04:48 AM
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Your problem could be cheep rotors. Alot of the after market drilled and slotted are just for looks and are week. Also do you down shift on hills or do you ride your brakes? Stopping still and sitting on them at the end of a long hill will warp them every time also. Getting them hot then cooling them to quick by hitting a creek or big water puddle will cool them to fast and warp them also.

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post #3 of 11 Old 10-26-2012, 09:45 AM
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Did you break them in correctly? There was directions with my powerslots on how to break them in. This was at least 4 years ago so I've forgotten what is required. Even after doing this I could still feel a little pulsation this past year. Will try oem pads and rotors next. I'd see if you can get the rotor shaved and maybe get new pads?

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post #4 of 11 Old 10-26-2012, 09:47 AM
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All my customers have gone to aftermarket rotors, then the come back to me saying they want OEM because 1) they last longer 2) they are made to OEM specifications
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post #5 of 11 Old 10-26-2012, 09:50 AM Thread Starter
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I always downshift and never sit on them when they're hot, I throw it in neutral if I just finished braking hard.. I will try and get them shaved down. I did break them in properly followed instructions. Thanks guys.
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post #6 of 11 Old 10-28-2012, 05:41 AM
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I had a similar problem with the shaking during braking, and after going through the rotors thing, I had a friend look at it, and found a pinhole in the brake line at the rear differential, right where the clamp attached the brake line to the frame. The clamp had rusted, and had also eaten the brake line. This solved my braking issues.


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post #7 of 11 Old 10-29-2012, 05:46 AM
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I went with R1 concepts rotors off ebay for mine, They are the OEM manufacturer for police packages for the big 3. Could not be happier. Very durable rotors, got the drilled and slotted and the stopping power is amazing.

I pull a 7500 lb boat, on the last hill going down to the lake I have litterally burned the brakes out of a truck before. These it is anon-issue, no fade, no smoke. Also pull a 10K TT, again no issues in hills.

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post #8 of 11 Old 10-29-2012, 05:53 AM
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did you clean and grease the slides? are your calipers moving good? who knows maybe they are rubbing and getting hot and causing the warp.


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post #9 of 11 Old 10-29-2012, 06:30 AM
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Quote:
Originally Posted by MyTractorsSexy View Post
did you clean and grease the slides? are your calipers moving good? who knows maybe they are rubbing and getting hot and causing the warp.
excellent point. I know I had a frozen slide we spent some time getting to let go and then greased well before putting back together.

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post #10 of 11 Old 10-29-2012, 12:00 PM
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You probably have wheel vibration and that is the source but this can lead to damaged rotors. There are lots of places this could occur. If this condition exists you can wreck rotors because the pads are not contacting the rotor properly. So what happens is because of the source vibration your rotors get thinner in some spots.

Take a look at this:

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