ASE Engine Repair
Terms & Definitions
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Bendix drive
A system that provides fresh air to the exhaust system under controlled conditions to reduce emissions. The air source can be a pulse-air pump or an electrical or belt driven pump. Upstream air injection goes into the exhaust manifold to assist in after burning HC laden exhaust gases. Downstream air injection goes into the oxidation bed of the catalytic converter to help oxidize HC and CO emissions.
The unburned fuel products of combustion that are forced pass the piston rings and into the crankshaft during the combustion stroke.
Exhaust gas recirculation valve
The starter drive gear that is attached to the starter motor armature and engages the gear teeth on the flywheel.