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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 107 (4.7L Engine (Service Information)) >> Valve Timing >> Standard Procedure >> Standard Procedure-Measuring Timing Chain Wear

Standard Procedure-Measuring Timing Chain Wear

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: This procedure must be performed with the timing chain cover removed.
  1. Remove the timing chain cover. (Refer to ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S)-REMOVAL ).
  2. To determine if the secondary timing chains are worn, rotate the engine clockwise until maximum tensioner piston extension is obtained. Measure the distance between the secondary timing chain tensioner housing and the step ledge on the piston (Fig 1). The measurement at point (A) must be less than 15 mm (0.5906 inches).
    Fig 1: Measuring Secondary Timing Chains For Wear
    G02657077Courtesy of DAIMLERCHRYSLER CORP.
  3. If the measurement exceeds the specification the secondary timing chains are worn and require replacement. (Refer to ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS-REMOVAL ).
NOTE: If the secondary chains are to be replaced the primary chain must also be replaced.
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