Passenger front brake pad worn down more so than rest
05-12-2018, 11:37 AM
#1
Race Director
Thread Starter
Passenger front brake pad worn down more so than rest
i was checking my 93 brake pads and noticed the passenger front seems more worn down then both the other front, and obviously the rears.
any ideas? hawk hp +
any ideas? hawk hp +
05-12-2018, 11:45 AM
#2
Melting Slicks
Member Since: Nov 2013
Location: Greater Cincinnati Area.
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Is it dragging? The caliper piston must move freely, and the caliper itself must be able to slide on the pins.
They really should be lubricated with something like sylglide during a brake service for this reason.
They really should be lubricated with something like sylglide during a brake service for this reason.
05-12-2018, 12:50 PM
#3
Pro
If one wheel set is wearing more than the others, something is hanging up. Does the car "pull" toward the worn set when braking?
05-19-2018, 07:55 AM
#5
Safety Car
what type of flexible lines are you using ? oem type rubber or stainless braid ? when the rubber hoses deteriorate, they tend to not allow the fluid to return after putting on the brakes, so while you are not getting a pull, that side might not be returning enough, and causing it to drag.
Last edited by drcook; 05-19-2018 at 07:55 AM.
05-19-2018, 03:35 PM
#6
Race Director
Thread Starter
what type of flexible lines are you using ? oem type rubber or stainless braid ? when the rubber hoses deteriorate, they tend to not allow the fluid to return after putting on the brakes, so while you are not getting a pull, that side might not be returning enough, and causing it to drag.
05-19-2018, 04:19 PM
#7
Safety Car
how old ? can you put the car up on jackstands, check the brakes, apply the brakes and see if it is releasing the caliper ?
05-20-2018, 11:47 AM
#8
Race Director
Thread Starter
Whatever is going on is not good.
notice how on my (expensive) 2 piece baer eradispeed rotors, that the slotting is worn down more on one part of the rotor vs the other (cry emoticon).
http://smg.photobucket.com/user/dizw...xfjv.jpeg.html
notice how on my (expensive) 2 piece baer eradispeed rotors, that the slotting is worn down more on one part of the rotor vs the other (cry emoticon).
http://smg.photobucket.com/user/dizw...xfjv.jpeg.html
05-20-2018, 12:34 PM
#9
Melting Slicks
Member Since: Nov 2013
Location: Greater Cincinnati Area.
Posts: 3,451
Received 335 Likes
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Dr. Cook is right.
When it is assembled, have someone work the brake pedal while you spin it by hand.
The pistons should both retract and the caliper itself should move without binding. (You can also install it without pads, slide it back and forth by hand, and kinda gauge this.)
If it doesn't back off, peel back the boots and look for corrosion on the pistons or caliper binding on the spindle.
If you don't find a problem there, one of your hoses may have failed internally. They can act like a check valve when they do this, keeping a little PSI on your brakes and burning them up.
So, you need piston travel, caliper movement and pressure release to keep from dragging your brakes and burning them up.
When it is assembled, have someone work the brake pedal while you spin it by hand.
The pistons should both retract and the caliper itself should move without binding. (You can also install it without pads, slide it back and forth by hand, and kinda gauge this.)
If it doesn't back off, peel back the boots and look for corrosion on the pistons or caliper binding on the spindle.
If you don't find a problem there, one of your hoses may have failed internally. They can act like a check valve when they do this, keeping a little PSI on your brakes and burning them up.
So, you need piston travel, caliper movement and pressure release to keep from dragging your brakes and burning them up.
Last edited by confab; 05-20-2018 at 12:35 PM.
05-20-2018, 01:14 PM
#10
Race Director
Thread Starter
The passenger rotor (the one in the picture), shows no signs of any runout issues both laterally and radialy.
oddly, the drivers side rotor shows some lateral runout but all the brake slotting is equally visible.
so im thinking im going to be replacing rotors too ($$ cry emoticon)....
im going to call baer techincal support tmrw and see if they hve any ideas
oddly, the drivers side rotor shows some lateral runout but all the brake slotting is equally visible.
so im thinking im going to be replacing rotors too ($$ cry emoticon)....
im going to call baer techincal support tmrw and see if they hve any ideas