Glossary “bucket” Definition:
A type of overhead camshaft valve lifters.
b
bucket seat
Glossary “bucket seat” Definition:
Single seat for one person.
bucking coil
Glossary “bucking coil” Definition:
One of the coils in a three-coil gauge
BTC
Glossary “BTC” Definition:
Before Top Center.
BTDC
Glossary “BTDC” Definition:
Before Top Dead Center.
BTS
Glossary “BTS” Definition:
Battery Temperature Sensor
BTU
Glossary “BTU” Definition:
British Thermal Unit. A measure of the heat energy. One BTU represents the amount of heat required to raise one pound of water, 1¡ãF at sea level.
btwn
Glossary “btwn” Definition:
Acronym form of Between
BU
Glossary “BU” Definition:
Blue
brush holder
Glossary “brush holder” Definition:
Adjustable arms for holding the brushes against the commutator, feeding them forward to maintain proper contact as they wear and permitting them to be lifted from contact when necessary. Found in starter motors, alternators, generators, and blower motors.
BS
Glossary “BS” Definition:
Brake light Switch, or Bleed Solenoid
BSFC
Glossary “BSFC” Definition:
Brake-Specific Fuel Consumption.
BSV
Glossary “BSV” Definition:
Backfire Suppression Valve
bronze
Glossary “bronze” Definition:
A copper-rich, copper-tin alloy with or without small proportions of other elements such as zinc and phosphorus often used for bearings or bushings.
bronze guide
Glossary “bronze guide” Definition:
A valve guide made of bronze alloy.
bronze guide liner
Glossary “bronze guide liner” Definition:
A thin valve guide, easy to install, but must be broached to stay in place.
bronzewall
Glossary “bronzewall” Definition:
A type of thread-like, valve-guide repair insert that must be reamed to size after installation.
brush(es)
Glossary “brush(es)” Definition:
A block of conducting material, such as carbon, held against an armature commutator or rotor slip ring to form a continuous electrical path as the component is rotated.
British thermal unit (BTU)
Glossary “British thermal unit (BTU)” Definition:
A measure of heat energy where one Btu is the amount of heat necessary to raise 1 pound on water 1¡ãF.
brittleness
Glossary “brittleness” Definition:
The quality of a material that leads to fracture without appreciable deformation.