50. Cylinder Head Assemble

^ Tools Required
- J 38606 Valve Spring Compressor
- J 42863 Valve Seal Installer





1. Install the valves. The valves are available in standard size and 0.015 in oversize.
Be sure to use oversize valve seals if oversize valves are used.

Important: Use hand pressure only when installing the valve seal using J 42863. Using to much force may cause damage to the oil seal and possibly lead to excessive oil consumption.

2. Place the valve stem oil seal over the valve stem so the seal begins to contact the valve guide.
3. Use J 42863 to push the valve stem oil seal over the valve guide.





4. Use J 38606 to install the valve spring and the valve cap.
5. Install the valve keys.
6. Use the following procedure to measure the valve stem height:
6.1. Place the valve in the guide. Hold the valve in the closed position.
6.2. Use a valve stem height gauge to measure the valve stem height.
6.3. The measurement should be 49 - 50 mm (1.93 - 1.97 inch).

Important: Grinding the valves increases the valve stem height and the valve spring installed height. Add shims to correct the valve spring installed height.





7. Use the following procedure to measure the valve spring installed height:
7.1. Place the valve in the valve guide.
7.2. Install the valve spring cap and the valve cap keys.
7.3. Seat the valve spring retainer by pulling up.
7.4. Use a steel machinists' rule to measure the distance from the spring seat to the bottom of the valve spring cap.
7.5. The measurement should be 42 - 44 mm (1.69 - 1.75 inch).
If the measurement is not within specifications add shims under the valve spring.