Valve Cover: Service and Repair

NOTE: Remove and install rocker cover bolts with a socket or wrench only.

Rocker Cover - 1.8L (QG18DE):

REMOVAL
1. Move the harnesses on top surface and right side of rocker cover aside.
2. Remove the ignition coils.
3. Disconnect the PCV hoses from the rocker cover.
4. If necessary, remove the PCV control valve.
5. Disconnect the intake valve timing control solenoid valve and camshaft position sensor (PHASE).
6. If necessary, remove the intake valve timing control solenoid valve and camshaft position sensor (PHASE).

CAUTION: Do not shock it.
Do not disassemble it.

The tip of the camshaft position sensor (PHASE) generates a strong magnetic field. Keep it away from metallic particles or objects affected by magnetic fields.







7. Loosen the bolts in the numerical order as shown.
8. If replacement is necessary, remove the rocker cover oil seal using a flat-head screwdriver.

CAUTION: Be careful not to damage the rocker cover.








INSTALLATION
1. Install the rocker cover oil seal.

Using a drift with outer diameter 97 mm (3.82 inch) and inner diameter 83 mm (3.27 inch) to 88 mm (3.46 inch), press in oil seal.

NOTE: There are two types of oil seal. If oil seal with flat bottom surface is pressed in, drift with any inner diameter can be used.
Press oil seal in until it is flush with installation surface.







2. Install the gasket on top of No. 1 camshaft bracket.
Position the gasket aligning its shape with camshaft bracket side. Align positioning stopper pin with hole gasket, and install.

3. Install the gasket (for circumference, square type) to installation groove of rocker cover.







4. Apply sealant to the positions shown, then install rocker cover.
Use Genuine RTV Silicone Sealant, or equivalent.







5. Tighten the rocker cover bolts to specified torque in two steps, in the numerical order as shown.

Bolt length:
Bolt position Torque
25 mm (0.98 inch): 1: 6.9 - 9.5 Nm (0.70 - 0.97 kg-m, 61 - 84 inch lbs.)
65 mm (2.56 inch): 2: 6.9 - 9.5 Nm (0.70 - 0.97 kg-m, 61 - 84 inch lbs.)
20 mm (0.79 inch)Except the above (all circumference): 6.9 - 9.5 Nm -(0.70 - 0.97 kg-m, 61 - 84 inch lbs.)

6. Install the intake valve timing control solenoid valve and camshaft position sensor (PHASE).
Tighten bolt after fully inserting it into rocker cover.

7. Install the PCV valve.
Insert it until flange contacts grommet tightly.

8. Install the remaining parts in the reverse order of removal.