| And a mission control device located in the exhaust system that contains catalyst, which reduces hydrocarbons, carbon monoxide and nitrogen oxide in the exhaust gases. | |
| A scale of temperature measurement with the boy point of water at 212F and the freezing point at 32F | |
| A device that atomizes air and fuel in a proportion that is burnable in the engine. | |
| A shaft with eccentric lobes that controls the opening of the intake exhaust valves. |