Camshaft Timing Components
CAMSHAFT TIMING COMPONENTSThe timing chain for the camshafts is located in a housing at the rear of the engine.
The timing chain is driven by the camshaft chain gear via the crankshaft. The chain drives both the intake and exhaust camshafts. The chain is continually tensioned by a hydraulic chain tensioner and is lubricated by oil via a separate nozzle.
The tensioner has an inhibitor that prevents the chain from slackening in the event of reversed loading.
The intake camshaft is equipped with a VCT unit and also drives the vacuum pump.
The return oil from the camshafts housing is routed to the gear housing and lubricates the timing gear's bearings and gear wheel.