Valve Lash
Valves Dimension of Gauge
Inlet
0.38 ± 0.08 mm (0.015 ± 0.003 inch)
Exhaust
0.64 ± 0.08 mm (0.025 ± 0.003 inch)
Adjust the valve lash while the engine is stopped.
Put the No. 1 piston at the top center position on the compression stroke.
Table 3TC Compression Stroke Inlet Valves Exhaust Valves
Valve lash
0.38 ± 0.08 mm (0.015 ± 0.003 inch)
0.64 ± 0.08 mm (0.025 ± 0.003 inch)
Cylinders 1-2-4 1-3-5
Adjust the valve lash according to Table 3.
Lightly tap the rocker arm at the top of the adjustment screw with a soft mallet. This will ensure that the lifter roller seats against the camshaft's base circle.
Loosen the adjustment locknut.
Place the appropriate feeler gauge between rocker arm and the valve bridge. Then, turn the adjustment screw in a clockwise direction. Slide the feeler gauge between the rocker arm and the valve bridge. Continue turning the adjustment screw until a slight drag is felt on the feeler gauge. Remove the feeler gauge.
Tighten the adjustment locknut to a torque of 30 ± 7 N·m (22 ± 5 lb ft). Do not allow the adjustment screw to turn while you are tightening the adjustment locknut. Recheck the valve lash after tightening the adjustment locknut.
Remove the timing bolt and turn the flywheel by 360 degrees in the direction of engine rotation. This will put the No. 6 piston at the top center position on the compression stroke. Install the timing bolt in the flywheel.
Table 4TC Exhaust Stroke (3) Inlet Valves Exhaust Valves
Valve lash
0.38 ± 0.08 mm (0.015 ± 0.003 inch)
0.64 ± 0.08 mm (0.025 ± 0.003 inch)
Cylinders 3-5-6 2-4-6
( 3 ) Position for No. 1 cylinder
Adjust the valve lash according to Table 4.
Lightly tap the rocker arm at the top of the adjustment screw with a soft mallet. This will ensure that the lifter roller seats against the camshaft's base circle.
Loosen the adjustment locknut.
Place the appropriate feeler gauge between rocker arm and the valve bridge. Then, turn the adjustment screw in a clockwise direction. Slide the feeler gauge between the rocker arm and the valve bridge. Continue turning the adjustment screw until a slight drag is felt on the feeler gauge. Remove the feeler gauge.
Tighten the adjustment locknut to a torque of 30 ± 7 N·m (22 ± 5 lb ft). Do not allow the adjustment screw to turn while you are tightening the adjustment locknut. Recheck the valve lash after tightening the adjustment locknut.
Remove the timing bolt from the flywheel after all adjustments to the valve lash have been made. Reinstall the timing cover.
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