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Home >> Jeep >> 2008 >> Commander Base, 3.7 K, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (4.7L Engine (Service Information)) >> Cylinder Head-Right >> Valves & Seats >> Removal >> Valves And Valve Springs >> Notes

Valves And Valve Springs: Notes

WARNING: This page is about a different variant/trim than selected.
NOTE: The cylinder heads must be removed in order to perform this procedure.
  1. Remove rocker arms and lash adjusters. Refer to ROCKER ARM  . See Figure.
    Fig 1: Using Special Tool 8516 Rocker Arm Remover To Press Downward On Valve Spring And Remove Rocker Arm
    GC0003805Courtesy of CHRYSLER LLC
    1 - CAMSHAFT
    2 - VALVE SPRING COMPRESSOR 10102
  2. Remove the camshaft bearing caps and the camshaft.
    NOTE: All eight valve springs and valves are removed in the same manner; this procedure only covers one valve and valve spring.
  3. Using Special Tool C-3422-B or C-3422-C Valve Spring Compressor and Special tool 8519 Adapter, compress the valve spring.
    NOTE: It may be necessary to tap the top of the valve spring to loosen the spring retainers locks enough to be removed.
  4. Remove the two spring retainer lock halves.
    NOTE: The valve spring is under tension use care when releasing the valve spring compressor.
  5. Remove the valve spring compressor.
  6. Remove the spring retainer, and the spring.
    NOTE: Check for sharp edges on the keeper grooves. Remove any burrs from the valve stem before removing the valve from the cylinder head.
  7. Remove the valve from the cylinder head.
    NOTE: The valve stem seals are common between intake and exhaust.
  8. Remove the valve stem seal. Mark the valve for proper installation.
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