DICTIONARY OF AUTOMOTIVE TERMS - "Up"
- Updraft carburetor
- A Carburetor in which the air passes upward through the Carburetor into the Intake manifold.
- Updraught carburetor
-
See
Updraft carburetor
- Uph
- Abbreviation for Upholstery.
- Upholstery
- (Uph) The fabric used to cover the seats and other panels.
Also See
Cloth upholstery
Full leather upholstery
Leather Upholstery
-
Upper A-arm
-
See
A-arm
- Upper ball joint
- A mechanical pivot located at the end of the upper suspension links.
-
Upper Coupler
- Load bearing surface on the underside of the front of a
semi-trailer. It rests on the fifth wheel of a tractor or dolly
and has a downward-protruding kingpin which is captured by the
locking jaws of the fifth wheel.
- Upper-cylinder lubrication
- A method of introducing a lubricant into fuel or intake manifold in order to permit lubrication of upper cylinder, valve guides, etc
- Upper dead center
-
See
Before upper dead center
Top dead center
- Upright mount
- A bicycle mount for a roof rack where both wheels remain on the bike. The bike is clamped on the frame, and both wheels are held down by straps.
- Upright sitting position
- Sitting straight up on a motorcycle with raised handlebars, where your hands are level with the bend in your elbows. It is the easiest and most comfortable position in which to ride a bike because no part of your body is faced with undue stress based on position. On motorcycles where the rider is leaning forward or backward, backs and hands start to ache.
- Upset
- A widening of the diameter by pounding or compressing the ends of a pipe or rod.
- Turning a vehicle over because of an accident.
-
Upsetting
-
- A metal working operation similar to forging
- The process of axial flow under axial compression of metal, as in forming heads on rivets by
flattening the end of wire.
- Upshift
- Shifting to a higher gear. In Britain it is called upward change.
- Upside-down forks
- Telescopic forks on a motorcycle in which the lower section, on which the wheel is mounted, telescopes into the fixed upper tube. They are sometimes called inverted telescopic forks on earlier motorcycles
- Up-stroke
- The ascending stroke of a piston, from BDC to TDC
- Upthrust
- The upward force produced when an object is immersed in a liquid or gas.
- Upward change
- A British term for shifting to a higher gear. In North America it is called upshift