Engine Timing: Operation

The crankshaft driven timing chain maintains camshaft (6) and balance shaft (3) operation and timing. Timing marks on the crankshaft (2), balance shaft (3) and camshafts (5) are aligned with copper links (1) in the timing chain to keep symmetrical valve and ignition performance.

Fig 1: Identifying Engine Timing Operation

Courtesy of DAIMLERCHRYSLER CORP.