Q: I have fitted new brake pads and the brakes squeal. Why?
A: Squeal is caused by vibration of any component under braking. Look beyond the braking system for worn suspension components. Check if the right pads have been fitted to the vehicle. Check that the original anti-squeal shims have been fitted to the replacement pads. The calipers may require a complete overhaul.
Rapid Pad Wear
Q: My customer complains that his brake pads are wearing out too quickly. What should I do?
A: First check the car's odometer reading to see if the calipers have ever been overhauled. Driver abuse can also cause rapid wear. When the rear brakes are not doing their share of braking, rapid wear of the front brakes is the result. Check to see if the booster/master cylinder/proportional valve are out of adjustment. Calipers must be overhauled at 60,000km intervals. Find out which friction material has been fitted as it may be wrong for the application. Overhaul if necessary.
Uneven Pad Wear
Q: After news pads had been fit the customer came back for a check-up and we found big differences in pad wear. What's going on?
A: Uneven pad wear is often a caliper problem, caused by faulty seals, sticking or bent slide pins. Overhaul the calipers on that axle.
Right Material For The Job
Q: We have fitted two sets of pads to two identical cars, but one of the owners is not happy. What's the difference?
A: Different vehicle loads, driving styles and road conditions demand different friction material characteristics. A car towing a caravan or tandem trailer may rquire high performance pads. The same car used for normal traffic and driving conditions would be perfectly happy with standard pads. If driven hard, the car may require Bendix or ABS brake pads.
Smoke and Odor
Q: A customer has complained that his pads smoke sometimes and give off a strong smell. What should we do?
A: The pads are simply getting too hot. The most common causes are driver abuse or faulty calipers. Faulty calipers may cause the front or rear brakes to "hang on", building up heat in the frictional material. Overhaul the braking system. If that turns out to be not at fault, get the driver to change driving habits.
Steering Vibration Under Light Braking
Q: What can be done to eliminate steering vibration under braking?
A: Disc thickness variation is what causes this problem. Usually it is caused by the disc being out of alignment when originally fitted. Machine (skim) the discs. If they are thinner than the manufacturer's minimum thickness specification, replace the discs.
Spongy Break Pedal
Q: What causes a spongy brake padal?
A: The usual cause is air in the system. The shoes could be badly lined, distorted or incorrectly set. Faulty drums, weak master cylinder mounting and distorted squeal deterrant shims can also cause a spongy pedal.
Fall in Fluid Level
Q: What will cause the fluid level to fall?
A: There may be an external leak. Worn disc pads could also be a cause. Check pads for wear and the entire system for hydraulic fluid leakage. Fit new hydraulic seals or pipes if necessary.
Which pad fits?
Q: How do I find out which pad to fit?
A: No matter what make or model of car you're working on, we are most likely to have the disc brake pad or rotor to suit. First check our Disc Brake Pad Catalogue. If your make and model are not listed we can source it for you!