Installation (Off Vehicle)
- If removed, install valve(s). See INTAKE/EXHAUST VALVES & SEATS .
- If valves or seats have been reground, check valve tip height (A) (Valve Tip Height and Valve Spring Installed Height). If valve tip height for intake valve is greater than 47.59 mm (1.8737") or 49.14 mm (1.9347") for exhaust valve, grind valve tip until within specifications. Make sure measurement is taken from cylinder head surface to the top of valve stem. See Figure.
- Install valve seal/spring seat assembly over valve guides on all valve stems. Ensure that the garter spring is intact around the top of the rubber seal. Install valve springs, valve retainers. See Figure.
- Compress valve springs with a valve spring compressor install locks and release tool. If valves and/or seats are reground, measure the installed height of springs (B), make sure measurements are taken from top of spring seat to the bottom surface of spring retainer. If height is greater than 38.75 mm (1.5256"), install a 0.762 mm (0.030") spacer in head counterbore under the valve spring seat to bring spring height back within specification. See Figure.