Valve stem end deflection

Check valve stem end deflection using a dial gauge.

Move stem end in directions (1) and (2) to measure end deflection.

Replace valve and valve guide if deflection exceeds the limit.

Valve stem end deflection limit 

In: 0.14 mm (0.0055 in.) 

Ex: 0.18 mm (0.0070 in.) 

Fig 1: Measuring End Deflection

Courtesy of SUZUKI OF AMERICA CORP.