To connect water pump pulley

To connect alternator

To connect crank or cam shaft gear

To connect A/C compressor

To coincide the gears

To set the engine timing

To set the F.I.P timing

To set the valve clearance

Cam shaft

Crank shaft

Rocker arm shaft

Primary shaft

Half

Equal

Double

Triple

During assembling water pump

During assembling oil pump

During assembling cam shaft

During assembling radiator