Thursday, 28 March 2024, 2:23 PM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
M
Main BeamThe upper of the two headlamp beams. Also driving beam and upper beam. |
Main BearingsCentral journals and bearings on a crankshaft axis mounted in the engine crankcase. The crankshaft rotates in these bearings. |
Main GalleryA tube shaped section cast in to the engine block where other oil feeds are taken from. |
Mainline PressureThe regulated hydraulic pressure in an automatic transmission. |
Makeup AirA system that brings and heats air from the outside to a desired air flow and temperature. |
MalleableDescribes a material that means it can be easily shaped. |
MAMMaximum Authorised Mass – The maximum gross weight permissible in GB. |
MandrelsBars used to locate a component. |
ManifoldPipes or ducting to route air in or burnt gases out of an engine. Attached to the ports. |
Manifold Absolute PressureThe mean gas absolute static pressure in an engine induction manifold. Absolute pressure is equal to gauge pressure plus atmospheric pressure. |