Valve Clearance: Adjustments

NOTE: Valves should be adjusted cold.

1. Remove cylinder head cover.






2. Set No.1 piston to TDC. "UP" mark on the camshaft pulley should be at top and TDC grooves on the camshaft pulley should align with the cylinder head surface.






3. Adjust valves on No.1 cylinder. Loosen the locknut and turn the adjusting screw until the feeler gauge slides back and forth with a slight amount of drag.

SPECS:
Intake: 0.23 - 0.28mm (0.009 - 0.011 in)
Exhaust: 0.27 - 0.32mm (0.011 - 0.013 in)

4. Tighten the locknut and check clearance again. Repeat adjustment if not within spec.






5. Rotate crankshaft 180° counterclockwise (camshaft pulley will turn 90°). The "UP" mark should be on the exhaust side. Adjust valves on No.3 cylinder.






6. Rotate crankshaft 180° counter clockwise to bring No.4 piston to TDC. Both TDC grooves are once again visible. Adjust valves on No.4 cylinder.






7. Rotate crankshaft 180° counterclockwise to bring No.2 piston to TDC. The "UP" mark should be on the intake side. Adjust valves on No.2 cylinder.
8. Re-torque crankshaft pulley bolt to 250Nm (181 ft.lbs). Install cylinder head cover.