Valve Springs/Seals: Installation

NOTE: Black valve seals are intake. Brown valve seals are exhaust (Figure).

Install valve seals (Figure).
Coat the valve stems with clean engine oil and insert them in the cylinder head.
Install valve spring seats (Figure).
Install valve springs and valve retainers (Figure).
Compress valve springs with a valve spring compressor. Install retaining locks and release tool.
If valves and/or seats have been reground, measure valve tip height (A) ( Fig 1 ). Make sure measurements are taken from cylinder head surface to the top of valve stem. If valve tip height is greater than 52.96 mm (2.085 in.), grind the valve tip until within specifications.

Fig 1: Measuring Valve Tip Height and Valve Spring Installed Height
Courtesy of DAIMLERCHRYSLER CORP.
If valves and/or seats have been reground, measure installed height of springs (B) ( Fig 1 ). Make sure measurements are taken from top of spring seat to the bottom surface of valve spring retainer. If height is greater than 44.45 mm (1.75 in.), install a 0.794 mm (1/32 in.) spacer in head counter-bore under the valve spring seat to bring spring height back to 43.69-44.45 mm (1.72-1.75 in.).