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This isn't on my SD but it's on my Expedition. I bought new EBC slotted rotors and green pads. The brakes were wearing fine before I took them off. The rotors were just really warped, which unheard is an issue with them, hence the slotted rotors. Anywho I'm getting uneven wear on my pads and rotor on the driver side now. So much so that it created so much heat you could smell the brakes and there are now cracks in the outside pad and some pad chipped off on the corner. Its wearing on the outside of the outside and inside of the rotor on the inside. My pins feel tight and are very well greased, the pistons dont have any slop in the caliper, the pads move freely in the hardware on the cradle. What am I missing? What else could it be?
This isn't on my SD but it's on my Expedition. I bought new EBC slotted rotors and green pads. The brakes were wearing fine before I took them off. The rotors were just really warped, which unheard is an issue with them, hence the slotted rotors. Anywho I'm getting uneven wear on my pads and rotor on the driver side now. So much so that it created so much heat you could smell the brakes and there are now cracks in the outside pad and some pad chipped off on the corner. Its wearing on the outside of the outside and inside of the rotor on the inside. My pins feel tight and are very well greased, the pistons dont have any slop in the caliper, the pads move freely in the hardware on the cradle. What am I missing? What else could it be?
Looking at your photos it doesn't look like the pads are mating in the same location on the rotor. If you compare the inside surface, the wear marks are much closer to the hub than the outer. In fact the outer most part of the inner side of the rotor doesnt even have the pad touching it seems. Not even sure it would fit that why, but it almost look like you had the inner brake pad installed backwards? If I were to guess, the lower pad in your last photo was the inside one based on the wear marks. the curve in the brake pad goes towards the hub.
Looking at your photos it doesn't look like the pads are mating in the same location on the rotor. If you compare the inside surface, the wear marks are much closer to the hub than the outer. In fact the outer most part of the inner side of the rotor doesnt even have the pad touching it seems. Not even sure it would fit that why, but it almost look like you had the inner brake pad installed backwards? If I were to guess, the lower pad in your last photo was the inside one based on the wear marks. the curve in the brake pad goes towards the hub.
Hard to tell...kinda looks like the pad friction material is not located on the backing plate the same for both pads. Looks like the pads are pressing ****-eyed on the rotor. Never seen that happen but it's possible...I've seen things equally weird on brakes.
The pads match up perfectly with the old factory pads so I know they're not the wrong pads. When I installed them in the cradle they sat flat and covered all friction surfaces on the rotor. But for some reason I'm not getting even pressure on both pads as you can see in the picture. In fact it's so uneven that you can see on the pads and rotor where they weren't even touching. I have changed a lot of brakes in my days and I've never come across something like this. It boggles my mind.
I though about that as well but could it really get that cockeyed that it would create that much of a differential in wear? Maybe I'll just have to take it to a dealer 😖
For as strange a wear pattern I see on the rotor, I would expect the piston to be obviously cockeyed. No micrometer would be necessary to measure if it really was offset. Then again, if it was that cockeyed I would also expect to see brake fluid leaking out. Is it possible the caliper bracket isn't properly attached? Something isn't right, that's for sure.
Is that the only rotor showing odd wear? If so, I would be leaning towards replacing the caliper assembly.
The pads match up perfectly with the old factory pads so I know they're not the wrong pads. When I installed them in the cradle they sat flat and covered all friction surfaces on the rotor. But for some reason I'm not getting even pressure on both pads as you can see in the picture. In fact it's so uneven that you can see on the pads and rotor where they weren't even touching. I have changed a lot of brakes in my days and I've never come across something like this. It boggles my mind.
They look like the correct pads but put together wrong by the manufacture. Perhaps it's the angle of your picture but sure looks like the friction material is not positioned on the pad plate correctly. The difference looks like an eight of an inch or so.
In other words, the friction material is not centered on the backing plate. The result is your pistons are pushing on the edge of the inner pad's friction material and not into the center of the inner pad's friction material.
Well I'm sorry to burn your brains trying to help me figure this out. I took it apart AGAIN and found my issue. My dumb *** put the inside pad on the outside and vice versa.
I feel like such a moron. I didnt even think to look and see if there was an inside and outside. Just by chance i happened to grab an outside pad out of the box and thays what I compared the new one to. Had I grabbed an inner one out of the box and compared it to the factory putter I would have noticed the difference. The inner pads have ears on the top of the pad for the caliper pistons to mate to. The outer ones do not so those ears on the inner pad were binding up on the caliper causing the pads to get all cockeyed when the brake was pressed. I bought a new set of motor craft pads, took a scoring pad on a die grinder to remove the glaze on the rotors and voila. Good as new. Thanks for the help guys. Even if it was due to my own stupidity.
Well I'm sorry to burn your brains trying to help me figure this out. I took it apart AGAIN and found my issue. My dumb *** put the inside pad on the outside and vice versa.
I feel like such a moron. I didnt even think to look and see if there was an inside and outside. Just by chance i happened to grab an outside pad out of the box and thays what I compared the new one to. Had I grabbed an inner one out of the box and compared it to the factory putter I would have noticed the difference. The inner pads have ears on the top of the pad for the caliper pistons to mate to. The outer ones do not so those ears on the inner pad were binding up on the caliper causing the pads to get all cockeyed when the brake was pressed. I bought a new set of motor craft pads, took a scoring pad on a die grinder to remove the glaze on the rotors and voila. Good as new. Thanks for the help guys. Even if it was due to my own stupidity.
We all make dumb mistakes now and then. You were man enough to own up to it and report back. A lot of people would have left us hanging in order to save face.
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