Intake valve: 0.002 in. - 0.003 in. (0.05 mm - 0.08 mm)
Exhaust valve: 0.003 in. - 0.004 in. (0.08 mm - 0.10 mm)
These clearances should be checked and adjusted, if necessary, every 4,000 miles (6,400 km) or once a year, whichever comes first.
