Valve Cover: Service and Repair

ROCKER ARM COVER REPLACEMENT

Remove or Disconnect

1. Negative battery cable.
2. Air cleaner assembly.
3. PCV valve and crankcase ventilation pipe.
4. EGR valve.
5. Plug wires at the rocker arm cover.
6. Vacuum line and wiring harness at the coolant outlet stud, and move aside.
7. Vacuum lines at intake manifold stud.
8. Rocker arm cover bolts.

NOTICE: Do not pry on the rocker arm cover. Damage to the sealing surface may result.

Clean

- Gasket material from the rocker arm cover and head. All loose gasket material or places that will cause installation interference must be removed.
- Oil and grease from the sealing surfaces on the cylinder head and rocker arm cover. Use a suitable solvent.

Inspect

- Rocker arm cover sealing flanges for distortion.

Install or Connect

1. Rocker arm cover and gasket to the cylinder head.

NOTICE: When fasteners are removed, always reinstall them at the same location from which they were removed. If a fastener needs to replaced, use the correct part number fastener for that application. If the correct part number fastener is not available, a fastener of equal size and strength (or stronger) may be used. Fasteners that are not reused, and those requiring thread locking compound will be called out. The correct torque value must be used when installing fasteners that require it. If the above conditions are not followed, parts or system damage could result.

2. Rocker arm cover bolts.

Tighten
- Rocker arm cover bolts to 8.5Nm (75 in. lbs.).

3. Vacuum lines at the intake manifold stud.
4. Vacuum line and wiring harness at the water outlet stud.
5. Plug wires at the rocker arm cover.
6. EGR valve.
7. PCV valve and crankcase ventilation pipe.
8. Air cleaner assembly.
9. Negative battery cable.