Valve Cover: Service and Repair
REMOVALThe cylinder head cover is isolated from the cylinder head via grommets and a reusable molded rubber gasket. The grommet and limiter are retained in the cylinder head cover.
1. Disconnect negative cable from battery.
2. Disconnect the Crankcase Ventilation (CCV) vacuum hose from engine cylinder head cover.
3. Disconnect the fresh air inlet hose from the engine cylinder head cover.
4. Disconnect the accelerator, transmission, and speed (if equipped) control cables from the throttle body (Fig. 14).
5. Remove the three bolts that fasten the control cable bracket to the intake manifold.
6. Remove control cables from cylinder head cover clip.
7. Position control cables and bracket away from cylinder head cover secure with tie straps.
8. Remove the engine cylinder head cover mounting bolts.
9. Remove the engine cylinder head cover and gasket.
CLEANING
Remove any original sealer from the cover sealing surface of the engine cylinder head and clean the surface using a fabric cleaner.
Remove all residue from the sealing surface using a clean, dry cloth.
INSPECTION
Inspect the engine cylinder head cover for cracks. Replace the cover, if cracked.
The original dark grey gasket material should NOT be removed. If sections of the gasket material are missing or are compressed, replace the engine cylinder head cover. However, sections with minor damage such as small cracks, cuts or chips may be repaired with a hand held applicator. The new material must be smoothed over to maintain gasket height. Allow the gasket material to cure prior to engine cylinder head cover installation.
INSTALLATION
The cylinder head cover is isolated from the cylinder head via grommets and a reusable molded rubber gasket. The grommet and limiter are retained in the cylinder head cover.
1. If a replacement cover is installed, transfer the CCV valve grommet and oil filler cap from the original cover to the replacement cover.
2. Install cylinder head cover and gasket (Fig. 15). Tighten the mounting bolts to 10 Nm (85 in. lbs.) torque.
3. Connect the CCV hoses.
4. Install control cables and bracket on intake manifold and tighten bolts to 8.7 Nm (77 in. lbs.) torque.
5. Connect control cables to throttle body linkage.
6. Snap control cables into cylinder head cover clip.
7. Connect negative cable to battery.