Valve Cover: Service and Repair

ROCKER COVER

Removal and Installation

Exploded View EM-41:

REMOVAL (LEFT BANK)
1. Remove engine cover.
2. Separate engine harness removing their brackets from rocker covers.
3. Remove harness bracket from cylinder head, if necessary.
4. Remove ignition coil.
5. Remove PCV hoses from rocker covers.
6. Remove oil filler cap from rocker cover (left bank), if necessary.

7. Loosen bolts with power tool in reverse order as shown.
8. Remove rocker cover gaskets from rocker covers.
9. Use scraper to remove all traces of liquid gasket from cylinder head and camshaft bracket (No. 1).

CAUTION: Do not scratch or damage the mating surface when cleaning off old liquid gasket.

INSTALLATION (LEFT BANK)

1. Apply liquid gasket using Tool to joint part among rocker cover, cylinder head and camshaft bracket (No. 1) as follows:
Tool number: WS39930000 ( - )
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants". Testing and Inspection

NOTE: The figure shows an example of left bank side [zoomed in shows camshaft bracket (No. 1)].

a. Refer to the figure "a" to apply liquid gasket to joint part of camshaft bracket (No. 1) and cylinder head.
b. Refer to the figure "b" to apply liquid gasket to the figure "a" squarely.
2. Install new rocker cover gasket to rocker cover.
3. Install rocker cover.
^ Check if rocker cover gasket is not dropped from installation groove of rocker cover.

4. Tighten bolts in two steps separately in numerical order as shown.
1st step: 1.96 Nm (0.20 kg-m, 17 in-lb)
2nd step: 8.33 Nm (0.85 kg-m, 74 in-lb)
5. Install oil filer cap to rocker cover (left bank), if removed.
6. Install PCV hose.
^ Insert PCV hose by 25 to 30 mm (0.98 to 1.18 in) from connector end.
^ When installing, be careful not to twist or come in contact with other parts.
7. Installation of the remaining components is in the reverse order of removal.

REMOVAL (RIGHT BANK)
1. Remove intake manifold collector.

CAUTION: Perform this step when engine is cold.

2. Separate engine harness removing their brackets from rocker covers.
3. Remove harness bracket from cylinder head (right bank).
4. Remove ignition coil.
5. Remove PCV hoses from rocker cover.
6. Remove PCV valve and O-ring from rocker cover (right bank), if necessary.

4. Tighten bolts in two steps separately in numerical order as shown.
1st step: 1.96 Nm (0.20 kg-m, 17 in-lb)
2nd step: 8.33 Nm (0.85 kg-m, 74 in-lb)
5. Install new O-ring and PCV valve to rocker cover (right bank), if removed.
6. Install PCV hose.
^ Insert PCV hose by 25 to 30 mm (0.98 to 1.18 in) from connector end.
^ When installing, be careful not to twist or come in contact with other parts.
7. Installation of the remaining components is in the reverse order of removal.