Wednesday, 2 December 2020, 7:11 PM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary

Running Clearance

A small gap between moving components that allows movement and lubrication.

Running On

The term applied to an engine that continues to run after the ignition has been switched off. Also run on and dieseling.


A measure of the out-of-true state on the face or faces of rotating components such as brake rotors and the clutch face on engine flywheels.


The corrosion product that forms on a steel surface when it is exposed to oxygen and water. Also known as oxidation.


Rear Wheel Drive.

Rzeppa Joint

A type of constant velocity joint used on vehicle transmission drive shafts. It has 6 steel balls in a cage between inner and outer elliptical housings.