Valve Cover: Service and Repair

ROCKER COVER

EM-51 Component:

Removal and Installation

REMOVAL
1. Release the fuel pressure.
2. Remove intake manifold collectors (upper and lower).
3. Separate engine harness removing their brackets from rocker covers.
4. Remove ignition coil.
5. Remove PCV hoses from rocker covers.
6. Remove PCV valve and O-ring from rocker cover (right bank), if necessary.
7. Remove oil filler cap and oil catcher from rocker cover (left bank), if necessary.





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

CAUTION: Never scratch or damage the mating surface when cleaning off old liquid gasket.

INSTALLATION





1. Apply liquid gasket with the tube presser (commercial service tool) to joint part among rocker cover, cylinder head and camshaft bracket (No. 1) as follows:
Use Genuine RTV Silicone Sealant or equivalent.

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 in the figure.
1st step: 1.96 Nm (0.20 kg-m, 17 lb-in)
2nd step: 8.33 Nm (0.85 kg-m, 74 lb-in)
5. Install oil catcher and oil filer cap to rocker cover (left bank), if removed.
6. Install new O-ring and PCV valve to rocker cover (right bank), if removed.
7. 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.
^ Install PCV hose between right and left rocker covers with its identification paint facing upward (right rocker cover side). Refer to component figure in "Removal and Installation".
8. Install in the reverse order of removal after this step.