my rotors are rubbing on my brake pads and i can't seem to fix it. the rotors appear to be straight and the wheels seem to be aligned right. is there a way to get the brake pads to stay farther apart when the brakes are released? is this something that i have to put up with? they don't rub that bad, but i know it's not speeding me up any. thanks for any help
how do i stop my rotors from rubbing?
- Thread starter Rydog
- Start date
jmics19067
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- Jan 22, 2002
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I would look at in this order; the pins/bolts that hold the brake pads in to make sure there was no rust or wear , the floating pins/bolts that the caliper slide on and then maybe a stuck caliper piston depending on the severity of the dragging and /or abnormal brake wear. If everything was straight and perfect there will probably always be some type of extremely slight friction as there is nothing to truly back the brake off the rotor, it is just not clamping down tight on the rotor when you let off the brake. I would think if there was no friction you would have a bent rotor forcing the brakes back further then if it was absolutely straight.
DEANSFASTWAY
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- May 16, 2002
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Sometimes brakes will drag if theres too much fluid in the system. Like when you put in new brake pads after someone has filled up the reservoir. Maybe you should try bleeding them. Check if something is bent or binding . If this is beyond your comprehension or skills you should find someone more capable so you dont end up wrapped in plaster. GOOD LUCK
jmics19067
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- Jan 22, 2002
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good point!!!!!!!
David Trustrum
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- Jan 25, 2001
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Just a point, when a disc rotors warps; the metal gets too hot & expands, either they get a buckle in them or the outside gets bigger than the inside they can ‘cone’ - the outside moves to the left or right.
Visulise it for a moment.
This will flex somewhat. Check the rotor is flat with a straight edge to be sure
Change the fluid while you are at it. Check the vent hole in the master cyl cap is clean too.
Sometimes the calliper pistons get a bit seized up & don’t want to move or return fully. Take the pads out & Pump them out a little, clean them & push them back.
You can carefully use a cheap wood sash or G clamp for this, but don’t go crazy.
Sometimes the fluid picks up dust that becomes sludge & this falls to the bottom of the system. . . which is just behind the pistons.
Often on an old bike I will remove them by pumping them out evenly & this gives you a good chance to clean the pistons properly & any gunk in the calliper + inspect the seals.
Visulise it for a moment.
This will flex somewhat. Check the rotor is flat with a straight edge to be sure
Change the fluid while you are at it. Check the vent hole in the master cyl cap is clean too.
Sometimes the calliper pistons get a bit seized up & don’t want to move or return fully. Take the pads out & Pump them out a little, clean them & push them back.
You can carefully use a cheap wood sash or G clamp for this, but don’t go crazy.
Sometimes the fluid picks up dust that becomes sludge & this falls to the bottom of the system. . . which is just behind the pistons.
Often on an old bike I will remove them by pumping them out evenly & this gives you a good chance to clean the pistons properly & any gunk in the calliper + inspect the seals.
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