### Rocker Arms

#### REMOVAL AND INSTALLATION

##### 2.0L (SR20DE) Engine

1. Release the fuel pressure following the proper procedure.
2. Disconnect the negative battery cable.
3. Remove the rocker arm cover, gasket, and the oil separator.
4. Remove the intake manifold supports, oil filter bracket, and the power steering pump.
5. Set the No. 1 cylinder at TDC on the compression stroke.
6. Remove the timing chain tensioner from the side of the head.
7. Matchmark the position of the rotor and housing and remove the distributor.
8. Remove the timing chain guide. Remove the camshaft sprockets while holding the camshaft stationary with a large wrench. Secure the timing chain with wire so the timing is not lost. The front cover will have to be removed if the chain timing is lost.

   NOTE: When removing the camshafts, loosen the journal caps in the opposite sequence of tightening. Camshaft damage may result if this step is not followed.

9. Remove the camshafts, brackets, oil tubes, and the baffle plate. Label all components for proper installation.

   NOTE: It is essential that all parts be kept in the same order and orientation for reinstallation. Be sure to mark and separate parts to keep them from getting mixed. This will aid assembly.

10. Remove the rocker arms, shims, rocker arm guides, and the hydraulic lash adjusters. Label all components for proper installation.

    NOTE: The valve lifters must be stored in the vertical position or submersed in clean oil to prevent air from entering the lifters.

11. Inspect the surfaces of the rockers and replace if there are any signs of damage.

    To install:

12. Lubricate the rocker arms, shims, rocker arm guides, and the hydraulic lash adjusters. Install them in their original locations.
13. Install the camshafts, brackets, oil tubes, and the baffle plate in the proper location.
14. Torque the bolts in sequence as follows:
    1. Tighten right camshaft bolts No. 9 and No. 10 to 17 inch lbs. (2 Nm).
    2. Tighten right camshaft bolts No. 1–No. 8 to 17 inch lbs. (2 Nm).
    3. Tighten left camshaft bolts No. 11 and No. 12 to 17 inch lbs. (2 Nm).
    4. Tighten left camshaft bolts No. 1–No. 10 to 17 inch lbs. (2 Nm).
    5. Tighten all camshaft bolts in numerical sequence to 52 inch lbs. (6 Nm).
    6. Tighten all camshaft bolts in numerical sequence to 87–104 inch lbs. (10–11 Nm).
    7. Tighten the rear two bolts of the LH camshaft to 13–19 ft. lbs. (18–25 Nm).
15. Install the camshaft sprockets while holding the camshaft stationary with a large wrench.
16. The remaining components are installed in the reverse order from which they were removed.
17. Connect the negative battery cable.
18. Check and adjust the ignition and valve timing. If there is air in the lifters, bleed the air by running the engine at 1000 rpm for 10 minutes.