E150 Brake Upgrade: Pads + Rotors?
#18
No, I'm not.
Typically it's pad build up being mistaken for warpage
That being said, it's obvious that rotors don't warp that often.
There are over 250 million registered vehicles in the US.
How many of those do you think are warped?
Can it happen? Does it happen?
Yes, it does but it's not that common.
I have warped them but I also had blue and purple spots on mine when I was done.
I've also smoked brakes like you wouldn't believe w/o warping the brakes too.
Literally red glowing discs. No warpage if cooled down properly.
The average joe never abuses the brakes like that.
#19
My dial indicator disagrees with you. '96 T-bird, '97 Cougar (even with the stock Mark VIII front brakes), '01 F250, and a myriad of other Fords, even Econolines that I've worked on. Most of them warped the rotors in the first 5K miles. A good solid set of Chinese made rotors, no more warpage.
And yes, I know how to use a dial indicator and how to get the max runout spec from a service manual.
And yes, I know how to use a dial indicator and how to get the max runout spec from a service manual.
#20
#22
Ditto !. But if he's that hard on rotors and pads then he needs to change his driving and braking habits too. I changed its first rotors @ 130,000 miles this past year. Put cheap pads on it and run around Standing on the brakes at the last minute to stop and no matter what you put on it rotors will never last
#23
I found this thread when looking for brake upgrades for my E150
The most common cause of brake pulsation is lateral run-out cause by improper torquing of the wheel lugnuts. Brake rotors need to get extremely hot in order to cause thermal induced warping. It is always important to make sure the mating surfaces are clean as well
When there is lateral run-out present, the brake pad wears on part of the rotor more than other parts causing the thickness to vary. When the thinner part passes the pads, the pedal goes down. When the thicker part passes the pads the brake pedal goes up which cause brake pulsation.
I am a ASE certified brake tech and was taught this by several Mastertechs who were schooled on the subject many years ago.
The most common cause of brake pulsation is lateral run-out cause by improper torquing of the wheel lugnuts. Brake rotors need to get extremely hot in order to cause thermal induced warping. It is always important to make sure the mating surfaces are clean as well
When there is lateral run-out present, the brake pad wears on part of the rotor more than other parts causing the thickness to vary. When the thinner part passes the pads, the pedal goes down. When the thicker part passes the pads the brake pedal goes up which cause brake pulsation.
I am a ASE certified brake tech and was taught this by several Mastertechs who were schooled on the subject many years ago.
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