Removing
1. Disconnect the negative cable from the battery.
2. Remove the camshaft cover (Chapter 2).
3. Slowly at the same time, loosen the rocker arm assembly mounting bolts in the sequence shown in the accompanying illustration.
8. Rocker assembly bolt loosening sequence
4. Once the bolts are loose, remove and place them in order, on a pre-numbered piece of cardboard, to reinstall in the same position.
5. Lift the rocker assembly away from the engine.
6. Drive to disassemble the rocker assembly, make marks so that the parts can be installed in their original position. Rocker arms, pads and camshaft covers are interchangeable.
Installation
7. Carefully clean the contact surfaces of the rocker arm assembly and cylinder head to remove all traces of the seal.
8. If the rocker arm assemblies have been disconnected, lubricate them with clean engine oil before installing.
9. Apply sealant to the contact surfaces of the cylinder head to the rocker arm assembly as shown in the accompanying illustration.
Apply sealant to the hatched areas before assembling the rocker arm assemblies
10. Place the rocker arm assembly in place, install the bolts and finger tighten them in their original positions.
11. Tighten the bolts, all a little at a time, with the tightening torque regulated specification, in the sequence shown in the accompanying illustration.
Rocker Assembly Bolt Tightening Sequence
12. Check valve setting, readjust if necessary (Section 1).
13. Install the camshaft cover and connect the battery terminals.