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Valve And Spring Installed Height

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Checking Valve Spring Installed Height
GC0015306Courtesy of DAIMLERCHRYSLER CORP.
  1. Coat valve stems (2) with clean engine oil and insert them in cylinder head.
  2. If valves or seats have been refaced, check valve tip height (5). If valve tip height (5) for intake valve is greater than 47.836 mm (1.883 in.) or 47.837 mm (1.883 in.) for exhaust valve, grind valve tip until within specifications. Make sure measurement is taken from cylinder head surface to the top of valve stem.
  3. Install valve seal/spring seat assembly (8) over valve guides on all valve stems. Ensure that the garter spring (9) is intact around the top of the rubber seal.
    Fig 2: Valve Seal And Spring Seat Assembly
    GC0015307Courtesy of DAIMLERCHRYSLER CORP.
  4. Position valve springs (3) and retainer (2) on spring seat (4).
  5. Compress valve spring with a valve spring compressor.
  6. Install retainer locks (1) and release tool.
    Fig 3: Checking Valve Spring Installed Height
    GC0015306Courtesy of DAIMLERCHRYSLER CORP.
  7. If valves and/or seats are refaced, measure the installed height of springs (4). Measurement is taken from top of spring seat to the bottom surface of spring retainer. If height is greater than 38.75 mm (1.5256 in.), install a 0.762 mm (0.030 in.) spacer in head counterbore under the valve spring seat to bring spring height back within specification.
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