Brakes: Friction Archives - Page 17 of 19 - UnderhoodService
Engineering: What Goes Up, Must Come Down!

Validating that the vehicle brake system is capable of getting the vehicle down a mountain is one of the major tests that occurs during the development and “prove-out” of the vehicle. In most cases, the manufacturer or the brake system supplier will test the vehicle on the road. This is also where a lot of

Doing the ‘Complete’ Brake Job

Brake work continues to be a solid service opportunity for independent repair shops because brakes are items that inevitably wear out. Disc brake pads need to be replaced, and the rotors usually need to be turned or replaced. The front brakes do the most of the braking, so they receive most of the attention when

Braking Horsepower: How Much Does Your Car Have?

We all know brakes get hot, sometimes very hot. If you watch closely on race day, it’s not uncommon to see the rotor on a race car glowing bright orange. Iron is in the range of 1,700º F when orange. At the most basic level, a brake is an energy conversion device. Normally people will

Drum Brake Self Adjusters: Understanding These Ancient Devices

d bridge bolts. Opposing piston calipers are bolted to the knuckle and have pins to position the pads. Drum brakes have return springs to return the shoes to a rest position and hardware to hold the shoes to the backing plate. The shoes return to a fully retracted or rest position when the master cylinder

Subaru Brake System Service

Over the last 25 years or so, Subaru has been the top- selling all-wheel-drive car here in the Pacific Northwest. For beachcombers and skiers alike, as well as rock hounds and hikers, having all-wheel drive is a big plus. Stop-and-go commuting, and difficult mountain driving take their toll on both drivers and vehicles. Of all

Runout Report

Dial Indicator 101

Selecting the Right Friction Material

How do you select the right brake pad for a vehicle? And, how do you select the right friction line to stock at your shop or have as your first call? These are difficult questions to answer. Every time your shop installs a set of brake pads on a vehicle you are taking a gamble

High-Performance Brake Pads

Friction and Fiction “I would like a more aggressive or high-performance brake pad.” If you work at a typical shop you will hear this statement at least once a week. It is a complex request that requires a line of questioning to flush out what the customer wants, needs and expects. “Aggressive”, “high performance” and

Brake & Suspension System Service

Brake and suspension repairs are the best type of routine maintenance repairs that coincide with major service intervals. Brake and suspension components that are in need of replacement could represent a significant profit center for shops when technicians take the time to perform complete chassis inspections. Worn suspension and brake components, as well as a

Brake Fade

Brake fade is something nobody wants to experience. When you step down on the brake pedal with a certain amount of force, the vehicle should slow predictably. But when the brakes get too hot and start to fade, it takes more and more pedal effort to get the same amount of braking force. Eventually the

Communicating with Customers about Brake Pads

The common brake job is getting more difficult to sell every day. Every shop is confronted with competition offering brake jobs for lower prices. Also, vehicles and brake pads are becoming more advanced. With these trends influencing the marketplace, how can a shop maximize and grow its revenue from the lowly pad replacement and turning

Selling Services: Anti-Seize & Studs

Last month I received a great letter from one of our readers. He was absolutely livid about the story “Double Hit” in our February issue. Ed from the Cherokee Garage in Beckwourth, CA, pointed out several incorrect items in the article. In the article, it was advised that a light coating of anti-seize could be