DICTIONARY OF AUTOMOTIVE TERMS - "Ju"

Jubilee® clamp
Jubilee clamp

Jubilee clamp

A trade name for a band clamp to secure a hose around a fitting. Also called a screw clamp. A screw thread pattern is cut into the band (usually stainless steel). One end of the band contains a captive screw. When the screw is turned, it tightens the band around the hose. Made by L. Robinson & Company (Gillingham) Limited
Jubilee® clip
Another term for a Jubilee® clamp
Judder
  1. To shake or vibrate.
  2. Shaking or vibration.
Also see
Juggernaut
A British term for a very large transport truck (i.e., goods lorry); compare Road train
Juice brake
Juice brakes
Julian
A vehicle brand of which models built between 1925 and 1948 are classic cars with required application.
Jumble
Jumped time
A situation in which ignition or camshaft timing is incorrect because of a mechanical malfunction
Jumper
A temporary wire leading from one terminal to another
Jumper cable
Jumper cables
Cables used to start a disabled vehicle by conducting electrical Current from the Battery of one vehicle to another so that the disabled vehicle can be started and begin to generate it own power. The British term is Jump leads
Jump lead
British term for Jumper cables or booster cables
Jump spark
A high tension electrical Current which jumps through the air from one terminal to the other.
Jump start
The act of using Jumper cables on a weak battery to start a disabled vehicle.
Junction
A region of transition between semiconductor layers, such as a p/n junction, which goes from a region that has a high concentration of acceptors: (p-type) to one that has a high concentration of donors: (n-type).
Also see
Junction box
Box or container housing group of electrical terminals.
Junk
  1. Scrap; unwanted material, e.g., unwanted car parts.
  2. To scrap, to throw away unwanted material.
Junk ring
A flexible ring used in the cylinder head to provide a seal with the inner sleeve of a sleeve valve engine
Junkyard
A place where cars are sent for scrap. Also called auto graveyard or auto wrecker's lot.
Jury rig
The action of Cobbling something together instead of put together according to Specifications.
Jury rigged
Something that is Cobbled together instead of put together according to Specifications. An alteration of the expression, Jewry rigged which was a slur on the Jews to indicate poor workmanship.
Just-in-time
(JIT) refers to the movement of material to the necessary place at the necessary time. It is part of a business philosophy based on achieving excellence in a manufacturing company through the continuous elimination of waste. A manufacturing system which depends on frequent, small deliveries of parts and supplies to keep on-site inventory to a minimum.
Just-in-time system
A system of production where components are delivered as they are required rather than keeping them in store
Juvenile delinquent
Trucker slang for someone pretending to be a truck driver as in "Let's take it to the double Harley there's too many juvenile delinquents on this channel."