VALVE CLEARANCE ADJUSTMENT
Perform the adjustment of the valve clearance in the following procedure.
Scheme 149
Scheme 150
Scheme 151
- Remove the rocker cover.
- Rotate crankshaft clockwise and then align the timing mark on the camshaft sprocket with the timing mark on the cylinder head. (Place No. 1 cylinder on the top dead center of compression stroke.) CAUTION: Rotate the crankshaft clockwise at any time.
- Measure the valve clearance marked with arrows shown in the figure. A: When No.1 cylinder is on the top dead center of compression stroke. B: When No.4 cylinder is on the top dead center of compression stroke.
- Using a thickness gauge, adjust the clearance between the valve shaft end and the adjusting screw. Standard value (in cold state): Intake side: 0.11 mm (0.004in) Exhaust side: 0.20 mm (0.008in) NOTE: After the engine assembly is installed on the vehicle, check the valve clearance again in the engine warm-up state. Adjust if necessary.
- Hold the adjusting screw not rotating through a driver and then tighten the rock nut.
- Rotate the crankshaft one time clockwise and then align the timing mark with the timing mark on the crankshaft sprocket. (Place No. 4 cylinder on the top dead center of compression stroke.)
- Adjust the valve clearance for the rest of the valves.
- Install the rocker cover.
