Rocker Arm, Valve: Installation
The longer pushrods are for the exhaust side, and the shorter pushrods are for intake side.
- Install the push rods in the same order as removed.
- Install the Push Rod Retainer (special tool #9070, Retainer, Push Rod) (1).CAUTION:
Ensure the retainers (1) and rocker arms (3) are not overlapped when torquing bolts.
CAUTION:Verify the push rods are installed into the rocker arms (3) and lifters correctly while installing the rocker shaft assembly. Recheck after the rocker shaft assembly has been torqued to specification.
- Install the rocker shaft assemblies in the same order as removed.CAUTION:
The rocker shaft assemblies are not interchangeable between intake and exhaust. The intake rocker arms are marked with the letter "I".
- Verify the rocker arms are installed in the correct location.NOTE:
Repeat torque sequence several times to ensure rocker shaft assembly is firmly seated.
- Using the sequence shown, tighten the rocker shaft bolts as follows:
- Snug to 10 N.m (7 ft. lbs.)
- Torque to 23 N.m (17 ft. lbs.)
- Individually loosen by 1/2 turn and re-torque to 23 N.m (17 ft. lbs.)
- Rotate an additional 30°
CAUTION:Do not rotate or crank the engine during or immediately after rocker arm installation. Allow the hydraulic roller lifters adequate time to bleed down (about 5 minutes).
- Remove the Push Rod Retainer (special tool #9070, Retainer, Push Rod) (1).
- Install the cylinder head cover. Refer to COVER(S), CYLINDER HEAD, INSTALLATION .