Note: The valves should be adjusted when the cylinder head temperature is less than 38°C. After adjustment, tighten the crankshaft pulley bolt to 177 Nm.
1. Remove the cylinder head cover.
2. Set the piston of the first cylinder to TDC. The "UP" mark on the pulley should be in the upper position, and the TDC marks on the pulley should be aligned with the pointer on the rear cover. TDC marks (white paint) on the crankshaft pulley should be aligned with the pointer on the lower timing belt cover.
3. Adjust the valves of cylinder No.1.
- Inlet: 0.15-0.19 mm
- Outlet: 0.17-0.21 mm
4. Loosen the lock nut and turn the adjusting screw until the feeler gauge slides back and forth with a slight "bite".
Location of the adjusting screw:
5. Tighten the lock nut and check the clearance again. Repeat the adjustment if necessary.
6. Turn the crankshaft 180° counterclockwise (the camshaft pulley turns 90°). The "UP" mark should be on the exhaust valve side.
7. Rotate the camshaft 180° counterclockwise to bring piston #4 closer to TDC. The "UP" mark should point straight down. Adjust the valves on cylinder #4.
8. Turn the crankshaft 180° counterclockwise to bring piston #2 closer to TDC. The "UP" marks should be on the exhaust valve side. Adjust the valves on cylinder #2.