Valve Guide Inspection
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
Measure the clearance between the valve guide and valve stem. If it exceeds the limit, replace the valve guide or valve, or both.
Standard value:
Intake 0.020 - 0.047 mm (0.0008 - 0.0018 inch)
Exhaust 0.035 - 0.062 mm (0.0014 - 0.0024 inch)
Limit:
Intake 0.10 mm (0.003 inch)
Exhaust 0.15 mm (0.005 inch)