CONTACT POINT REGULATORAn older type
regulator that has been replaced by the electronic
CONTACT POINTSA spring-loaded electrical
"make/break" switch contacts.
CONTROL ARM BUSHINGA sleeve that allows
the control arm to swing up and down.
CONTROL ARMSMovable lever arm that forms
part of the suspension system of the vehicle.
CONVERTER HOUSINGCase containing the
fluid coupling (torque converter) used with an
CURB HEIGHTDistance from a given point on the
vehicle to the ground.
CURB WEIGHTWeight of the vehicle with a full
gas tank and no passengers or cargo.
CURRENTThe flow of electrons through a
CUSHIONING SPRINGSFlat springs under the
friction material on the clutch disc that helps
smooth the clutch engagement.
DC GENERATORA device that produces direct
DEAD AXLEA solid, straight rear axle on a front-
wheel drive vehicle.
DEAD BATTERYOne that has become completely
DIAGONAL-BRAKE SYSTEMA brake system
with separate hydraulic circuits connecting
diagonal wheels together (RF to LR and LF to RR).
DIAGRAMSDrawings that are used to show
wiring, vacuum, or hydraulic systems.
DIAPHRAGM SPRING CLUTCHA clutch that
uses a single diaphragm spring, rather than several
coil springs, to help release the clutch disc.
DIFFERENTIALAn assembly of gears used to
provide power to the rear axles and allow them to
rotate at different speeds as necessary.
DIFFERENTIAL CARRIERComponent used to
mount the differential assembly on the rear axle
DIFFERENTIAL CASECase that holds the ring
gear, spider gear, and inner ends of the axles.
DIFFERENTIAL LUBRICANTA heavy oil used
to reduce friction between differential
connects the rear universal of the drive line to the
DIMMER SWITCHControl for high beam and
low beam headlamp functions.
DIODEElectronic device that allows current flow
in only one direction.
DIODE TESTA check for open and shorted
conditions in a diode, using an ohmmeter or
special test equipment.
DISC BRAKESBrakes using a caliper that clamps
against a rotor for stopping.
DISC BRAKE SERVICEProcedure
worn pad replacement, caliper rebuilding, rotor
surfacing, and system bleeding.
surface to remove wear marks or correct runout.
DISC RUNOUTAmount of side-to-side movement
of the brake rotor.
DISTILLED WATERWater that has been purified.
DISTRIBUTOR CAPA plastic, insulating cover
that encloses the distributor rotor and other
DISTRIBUTOR POINT GAPRecommended
distance between points when fully open.
DISTRIBUTOR TESTEDTest device used to
check operation of an ignition system distributor.
DOT NUMBERThe Department of Transportation
code that indicates the tire has passed a required
safety test. Also identifies manufacturer,
construction type, and other data.
partially applied, even though the brake pedal is
DRAGGING CLUTCHFailure of the friction disc
to disengage from the flywheel fully, even though
the clutch pedal is depressed.
longitudinally mounted engines to transfer power
from the engine crankshaft to the transaxle.