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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 52 (Engine - 3.9L) >> Camshaft & Bearings (In Block) >> Installation >> Installation-Camshaft

Camshaft & Bearings (In Block): Installation: Installation-Camshaft

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. Lubricate camshaft lobes and camshaft bearing journals and insert the camshaft to within 51 mm (2 inches) of its final position in cylinder block.
  2. Install Camshaft Holding Tool C-3509 with tongue back of distributor drive gear (Fig 1 ).
    Fig 1: Identifying Camshaft Holding Tool C-3509 (Installed Position)
    G02656848Courtesy of DAIMLERCHRYSLER CORP.
  3. Hold tool in position with a distributor lock-plate bolt. This tool will restrict camshaft from being pushed in too far and prevent knocking out the welch plug in rear of cylinder block. Tool should remain installed until the camshaft and crankshaft sprockets and timing chain have been installed. 
  4. Install timing chain tensioner. Torque bolts to 24 N.m (210 in. lbs.) torque.
  5. Compress tensioner shoe (Fig 2 ) and install a suitable sized pin to retain shoe for chain installation.
    Fig 2: Compressing Tensioner Shoe For Timing Chain Installation
    G02656849Courtesy of DAIMLERCHRYSLER CORP.
  6. Place both camshaft sprocket and crankshaft sprocket on the bench with timing marks on an exact imaginary center line through both camshaft and crankshaft bores.
  7. Place timing chain around both sprockets.
  8. Turn crankshaft and camshaft to line up with keyway location in crankshaft sprocket and in camshaft sprocket.
  9. Lift sprockets and chain (keep sprockets tight against the chain in position as described).
  10. Slide both sprockets evenly over their respective shafts and use a straightedge to check alignment of timing marks (Fig 3 ).
    Fig 3: Aligning Timing Marks On Crankshaft And Camshaft Sprocket
    G02656850Courtesy of DAIMLERCHRYSLER CORP.
  11. Install the camshaft bolt/cup washer. Tighten bolt to 68 N.m (50 ft. lbs.) torque.
  12. Measure camshaft end play (Fig 4 ). (Refer to ENGINE-SPECIFICATIONS  ) for proper clearance. If not within limits, install a new timing chain tensioner.
    Fig 4: Checking Camshaft End Play
    G02656851Courtesy of DAIMLERCHRYSLER CORP.
  13. Each tappet reused must be installed in the same position at which it was removed. When camshaft is replaced, all of the tappets must be replaced.  Install hydraulic tappets (Refer to ENGINE/ENGINE BLOCK/HYDRAULIC LIFTERS (CAM IN BLOCK)-INSTALLATION  ).
  14. Install timing chain cover (Refer to ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S)-INSTALLATION  ).
  15. Install intake manifold (Refer to ENGINE/MANIFOLDS/INTAKE MANIFOLD-INSTALLATION  ).
  16. Install distributor (Refer to DISTRIBUTOR ).
  17. Install cylinder head covers (Refer to ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S)-INSTALLATION  ).
  18. Install radiator (Refer to RADIATOR ).
  19. Fill cooling system (Refer to STANDARD PROCEDURE--REFILLING COOLING SYSTEM - 3.9L/5.9LCOOLING-STANDARD PROCEDURE ).
  20. Connect battery negative cable.
  21. Start engine and check for leaks.