Tools Required
- Install the valves. The
valves are available in standard size and 0.381 mm (0.015 in)
  oversize. Use oversize valve seals if oversized valves are used.
 
- Use the following procedure to measure the valve stem height:
 
| 2.1.  | Place the valve on the guide. Hold the valve in the closed position. | 
 
| 2.2.  | Use a valve stem height gauge to measure the valve stem height. | 
 
| 2.3.  | The measurement should be 49-50 mm (1.93-1.97 in). | 
 
Notice: Use hand pressure only when installing the valve seal using J 42863.
 Using too much force may cause damage to the oil seal and possibly
lead to excessive oil consumption.
- Use the following procedure to measure the valve spring installed height:
 
| 3.1.  | Place the valve in the valve guide. | 
 
| 3.2.  | Install the valve spring cap and the valve cap keys. | 
 
| 3.3.  | Seat the valve spring retainer by pulling up. | 
 
| 3.4.  | Use a steel machinists' rule to measure the distance from the
spring seat to the bottom of the valve spring cap. | 
 
| 3.5.  | The measurement should be 42-44 mm (1.69-1.75 in). | 
 
If the measurement is not within specifications add shims under the
valve spring.
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.
- Place the valve stem oil seal over the valve stem so the seal begins
to contact the valve guide.
 
- Use 
J 42863 
 to push the valve stem oil seal over the valve guide.
 
- Use 
J 38606 
to install  the valve spring and the
 valve cap.
 
- Install the valve keys.