Wednesday, 8 May 2024, 4:31 AM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
J
JackA mechanical or hydraulic tool for lifting a vehicle. Should always be used with axle stands if under vehicle access is needed. |
Jack StandsVehicle support equipment manufactured with a rated weight capacity. Used to support a vehicle when wheels are removed or when access to the underside is needed. Also known as axle stands. |
Jam (Lock) NutA nut that is used to lock another nut or threaded component in position on a threaded rod or stud. Also lock nut - US term. |
Jamb SwitchSwitch fitted on a door jamb or pillar for operating the courtesy light or vehicle alarm system. |
JammingThe deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems. Or informal music creation in a group! |
JASJet Air System |
JetA calibrated nozzle in a gas or liquid injection system. In a carburettor used to regulate fuel and air flows. |
Jet NeedleA small needle that works inside a jet (small hole) to control fuel flow in a carburettor. |
JigA device for locating and holding a piece of work during machining operations. |
Jiggle pinMost thermostats have a Jiggle pin. Its function is to allow trapped air past a closed thermostat as a build-up of air in front of the wax capsule could cause engine damage. |