Timing Drive System

The timing drive system has been designed to provide quiet performance and reliability to support a non-free wheeling engine. Specifically the intake valves are non-free wheeling and can be easily damaged with forceful engine rotation if camshaft-to-crankshaft timing is incorrect. The timing drive system consists of a primary chain and two secondary timing chain drives. See Fig 1.

Fig 1: Identifying Timing Chain Drive System Components

Courtesy of CHRYSLER LLC

1 - RIGHT CAMSHAFT SPROCKET AND SECONDARY CHAIN

2 - SECONDARY TIMING CHAIN TENSIONER (LEFT AND RIGHT SIDE NOT COMMON)

3 - SECONDARY TENSIONER ARM

4 - LEFT CAMSHAFT SPROCKET AND SECONDARY CHAIN

5 - CHAIN GUIDE

6 - TWO PLATED LINKS ON RIGHT CAMSHAFT CHAIN

7 - PRIMARY CHAIN

8 - IDLER SPROCKET

9 - CRANKSHAFT SPROCKET

10 - PRIMARY CHAIN TENSIONER

11 - TWO PLATED LINKS ON LEFT CAMSHAFT CHAIN

12 - SECONDARY TENSIONER ARM