Glossary “brake system bleeding” Definition:
See brake bleeding.

Glossary “brake thermal efficiency” Definition:
bHP converted to BTU’s, divided by the fuel’s heat input in BTU’s with the result multiplied by 100.

Glossary “brake torque” Definition:
The engine output at the flywheel as measured on a dynamometer.

Glossary “brake warning light” Definition:
An instrument-panel light that warns of brake-system malfunction.

Glossary “brake spoon” Definition:
Tool used to adjust drum brake clearances.

Glossary “brake stopping distance” Definition:
The distance traveled from the application of the brakes to the point at which the vehicle comes to a complete stop.

Glossary “brake system” Definition:
The system in a vehicle that is used to slow or stop the vehicle.

Glossary “brake rattle” Definition:
Noise of varying pitch that changes as brakes are applied or released.

Glossary “brake shoe” Definition:
The curved metal part, faced with brake lining, that is forced against the brake drum to produce braking action.

Glossary “brake shoe heel” Definition:
The end of brake shoe opposite the anchor pin.

Glossary “brake shoe toe” Definition:
The end of brake shoe nearest the anchor pin.

Glossary “brake specific fuel consumption” Definition:
The measure of an engine’s fuel efficiency during dynamometer testing.

Glossary “brake pad” Definition:
The pad of friction material applied by the caliper to the disc, to slow or stop a vehicle.

Glossary “brake pedal effort gauge” Definition:
Used to check the driver’s input effort required to stop the vehicle. Typically available in calibrations of either 1 – 160 lbs. (car) or 0 – 300 lbs (trucks).

Glossary “brake pedal pulsation” Definition:
When the brake pedal moves up and down during a stop due to out of round drum or excessive runout in the rotors.

Glossary “brake pedal reserve” Definition:
Pedal travel distance before the brakes begin to apply.

Glossary “brake power assist” Definition:
A device installed in a hydraulic brake system that reduces pedal effort and affords better braking.

Glossary “brake pull” Definition:
When a vehicle pulls to one side when the brakes are applied during a stop.

Glossary “brake mean effective pressure” Definition:
The average effective pressure in an engine’s cylinders at a specific brake horsepower and speed.

Glossary “brake moan” Definition:
A low pich noise that is felt in the floor and/or the steering wheel during light brake application.. Common vehicle speed range between 8 and 40 mph.