Legacy Brighton Wagon AWD F4-2.5L SOHC (2000)
(3) Remove valve rocker assembly.
B: DISASSEMBLY
1) Remove bolts which secure rocker shaft.
2) Extract rocker shaft. Remove valve rocker arms, springs, plates and shaft supports from rocker shaft.
CAUTION: Arrange all removed parts in order so that they can be installed in their original positions.
3) Remove nut and adjuster screw from valve rocker.
C: INSPECTION
1. VALVE ROCKER ARM
1) Measure inside diameter of valve rocker arm and outside diameter of valve rocker shaft, and determine the difference between the two (= oil
clearance).
Clearance between arm and shaft:
Standard: 0.020 - 0.054 mm (0.0008 - 0.0021 inch)
Limit: 0.10 mm (0.0039 inch)
2) If oil clearance exceeds the limit, replace valve rocker arm or shaft, whichever shows greater amount of wear.
Rocker arm inside diameter: 22.020 - 22.041 mm (0.8669 - 0.8678 inch)
Rocker shaft diameter: 21.987 - 22.000 mm (0.8656 - 0.8661 inch)
3) Measure inside diameter of rocker shaft support and outside diameter of valve rocker shaft, and determine the difference between the two (= oil
clearance).
Clearance between support and shaft:
Standard: 0005 - 0.039 mm (0.0002 - 0.0015 inch)
Limit: 0.05 mm (0.0020 inch)
4) If oil clearance exceeds the limit, replace rocker shaft support or shaft, whichever shows greater amount of wear.
Rocker shaft support inside diameter: 22.005 - 22.026 mm (0.8663 - 0.8672 inch)
Rocker shaft diameter: 21.987 - 22.000 mm (0.8656 - 0.8661 inch)
5) If cam or valve contact surface of valve rocker arm is worn or dented excessively, replace valve rocker arm.