DICTIONARY OF AUTOMOTIVE TERMS - "Kn"
- Knee, beam
- Bracket between a deck beam and frame
- Kneeling feature
- A device that is put on a van or bus, which allows the entire right side to
become lower thus offering someone who has trouble going up steps easy access to
the vehicle.
- Kneuter valve
- This is the unknown part that causes a car's weird problems that a mechanic
cannot find or repair.
- Knife
-
See
Jack knifePutty knife
- Knifing stopper
- Fine grade filler for minor dents and chips
- Knight
See
Stearns-Knight
Willys-Knight
- KNK
- Acronym for Knock sensor
- Knob
See
Choke knob
Gear knob
Mixture control knob
Shifter knob
Spinner knob
- Knobby
See
Knobby tire.
- Knobby tire
- On a Bicycle or
Motorcycle, a heavy-duty tire with large rubber
knobs spaced relatively far apart to provide Traction
in wet, muddy terrain.
- Knobby tires
See
Knobby tires.
- Knock
-
- A general term used to describe various noises occurring in an engine; may be
used to describe noises made by loose or worn mechanical parts.
- Preignition, or
Detonation.
Also See
Anti-knock agent
Carbon knock
Diesel knock
Engine knock
Fuel knock
Spark knock
- Knock additive
See
Anti-knock additive
- Knockback
-
- The action of a brake disc with excessive runout pushing back the brake
pads when the brakes are not applied
- Brake caliper piston retraction caused by rotor runout driving a piston back
into its bore when the brakes are released.
- Knock control
- A device which retards the spark advance when detonation occurs. The retard mode
is held for a certain time, typically 20 seconds, after which the knock control
reverts to normal operation
- Knocker
- A colloquial term for a Panel puller
- Knocking
-
- Noise created by part movement in a loose or worn bearing.
- A condition, accompanied by an audible noise, that occurs when the
Gasoline in the
Cylinders burns too quickly. This is also referred
to as Detonation.
- Knock limit
- The degree of spark advance before detonation
- Knock off
- A single, large Wing nut for fastening a wheel to
the hub. Easily removed and replaced, it is struck (knocked off) with a mallet on
the wings. Also called a spinner.
- Knock-off wheel
- A splined-hub wheel with one central locking nut
(Spinner) which is knocked on and off with a
soft-headed hammer
- Knock-on
- A Knock off nut
- Knock resistance
See
Octane number
- Knock sensor
- (KNK or KS) a piezoelectric accelerometer mounted on the engine to detect the
high-frequency vibrations caused by detonation. Since an engine gives the best
power and efficiency as it approaches detonation, the knock sensor can relay this
information to a computer which can control the factors leading to detonation. Also
called Detonation sensor
- Knot
- A unit of speed in nautical mile (6,080 feet or 1,852 meters) per hour.
- Knuckle
-
- The joint of a hinge through which the pin passes;
- The hinged joint between two rods or tubes.
Also See
Ball joint steering knuckle
Steering knuckle
- Knuckle angle
See
Steering knuckle angle
- Knuckle arm
- Steering arm.
Also See
Steering knuckle arm
- Knucklehead
- Term for Harley-Davidson's first overhead-valve Big Twin, introduced in 1936
- Knuckle pin
See
Kingpin
- Knurl
-
- A series of small ridges on nuts and knobs to provide a grip for fingers.
- To indent or roughen the finished surface of a piece of metal by pressing a
series of cross-hatched lines into the surface and thereby raising the area
between these lines.
- Knurled nut
- A thumb nut with knurled sides
- Knurling
- Roughening with knurls