Valve And Valve Spring - Kia Cerato 2009 Service Manual

2. Inspect for cracks.
Check the combustion chamber, intake ports, exhaust ports and cylinder block surface for cracks. If
cracked, replace the cylinder head.

VALVE AND VALVE SPRING

1. Inspect the valve stems and valve guides.
(1) Using a caliper gauge, measure the inner diameter of valve guide.
Valve guide inner diameter :
Intake : 5.500 ~ 5.512mm (0.2165 ~ 0.2170in)
Exhaust : 5.500 ~ 5.512mm (0.2165 ~ 0.2170in)
(2) Using a micrometer, measure the outer diameter of valve stem.