ROCKER SHAFT GROUP REPLACEMENT - CONTINUED
VALVE LASH ADJUSTMENT
Valve lash should be 0.015 in. (0.38 mm) for inlet valves and 0.025 in. (0.64 mm) for exhaust valves.
Position no. 1 piston at top center position on compression stroke (WP 0140 00).
Before any actual adjustment is made, lightly tap rocker arm at top of adjustment screw with a soft mallet.
This will ensure that lifter roller seats against camshaft's base circle.
Loosen adjustment nut (3).
If there is not enough clearance to insert feeler gage between rocker arm and valve, turn adjustment screw
counterclockwise to increase clearance.
Insert 0.015 in. (0.38 mm) feeler gage between rocker
arm (8) and valve (7) and turn adjustment screw (4)
clockwise. Continue turning adjustment screw until a
slight drag is felt on feeler gage. Remove feeler gage.