Valve Guide

WARNING: This page is about a different car, the 2004 Mitsubishi Eclipse. 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.

Fig 1: Measuring Clearance Between Valve Guide And Valve Stem

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Standard value:

< Intake> 0.02 - 0.05 mm (0.0008 - 0.0019 inch)

< Exhaust> 0.03 - 0.07 mm (0.0012 - 0.0027 inch)

Limit:

< Intake> 0.10 mm (0.003 inch)

< Exhaust> 0.15 mm (0.005 inch)