Removal and Installation

REMOVAL AND INSTALLATION









Required Special Tools:

- MB991614: Angle Gauge

- MB992085: Valve Stem Seal Plier

- MB992182: Valve Stem Seal Installer

- MD998735: Valve Spring Compressor

REMOVAL SERVICE POINTS

[[A]] RETAINER LOCK REMOVAL





1. Using special tool MD998735, compress the spring.
2. Remove the retainer locks.

[[B]] VALVE STEM SEAL REMOVAL





Using the special tool MB992085, nip the valve stem seal and remove it.

INSTALLATION SERVICE POINTS

]]A[[ VALVE STEM SEAL INSTALLATION





1. Install the valve spring seat to the valve guide.

CAUTION:

- Valve stem seals for intake valves and for exhaust valves are different. Be sure to install the correct ones.

- Valve stem seal identification color.

Intake: GRAY

Exhaust: GRAY GREEN

CAUTION:

- Always use the special tool to install the valve stem seal. Improperly installed valve stem seals may leak oil.

- Do not strike the valve stem seal strongly because it might be damaged.





2. Using special tool MB992182, install a new stem seal to the valve guide.
NOTE:
After install, check the special tool does not stick to the valve spring sheet. Put the valve spring sheet in position.

]]B[[ VALVE SPRING INSTALLATION





Install the valve spring end with its identification color toward the spring retainer.
Identification color

Intake: White
Exhaust: Blue


]]C[[ RETAINER LOCK INSTALLATION





Using special tool MD998735, compress the valve spring and insert the retainer lock into position.

]]D[[ CYLINDER HEAD BOLT INSTALLATION









CAUTION:
Attach the head bolt washer in the direction shown in the figure.

1. Tighten the bolts in the illustrated sequence two or three rounds.
Tightening torque: 45 ± 2 Nm (33 ± 1 ft-lb)

CAUTION:

- When the tightening angle is smaller than the specified tightening angle, the appropriate tightening capacity cannot be secured.

- When the tightening angle is larger than the specified tightening angle, remove the bolt to start from the beginning again according to the procedure.





2. Using the special tool MB991614, tighten the cylinder head bolt another 150 degrees.