Webb Catalog

BRAKE DRUM AND ROTOR SERVICE INFORMATION

TROUBLE-SHOOTING: DISC BRAKE PAD WEAR

Note: The disc pads used with the rotor may indicate problems within your braking system.

Shown below are examples of disc pads wear which may help you identify these problems.

Problem

Cause

Solution

Chipped

Excessive heat buildup

in brake system - caliper

or caliper piston hanging

up creating constant

friction - rear brakes not

functioning effectively causing

disproportionate braking

energy on the front disc pads.

Check rear brakes,

replace caliper and caliper

piston, replace pads and

check rotor for damage. If

damaged, replace rotor.

Cracked

Excessive heat buildup

in brake system - caliper

or caliper piston hanging

up creating constant

friction - rear brakes not

functioning effectively causing

disproportionate braking

energy on the front disc pads.

Check rear brakes,

replace caliper and caliper

piston, replace pads and

check rotor for damage. If

damaged, replace rotor.

Grooved

Foreign material or debris

imbedded in brake pads.

Rotors need to be turned

(refaced) or replaced and

replace pads.

Stepped

Pads not installed correctly -

pads not in full contact with the

rotor.

Replace the guide pins,

mounting bolts, bushing

and caliper hardware.

Replace pads and check

rotor for damage. If

damaged, replace rotor.

Tapered

Worn out caliper bushings

and/or worn out caliper

hardware.

Replace caliper bushings

and/or caliper hardware,

replace pads, check rotor

for damage. If damaged,

replace rotor.

Worn Beyond Use Disc pads allowed to remain

in service beyond normal safe

limits of usage.

Replace pads and check

rotor for damage. If

damaged, replace rotor.

GAS VENT