CYLINDER HEAD ASSEMBLY EMA -43
INSPECTION EA4BD93A
CYLINDER HEA D
1. Inspe c t for flatness.
Using a precision straight edge and feeler gauge,
measure the surface the contacting the cylinder block
and the manifolds for warpage.
Flatness of cylinder head gasket surface
Standard : Less than 0.05mm(0.002in.)[Less
than 0.02mm(0.0008in.)/150x150]
Flatness of manifold gasket surface
Standard : Less than 0.03mm(0.001in)/110x110
EDQF160A
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 VAL VE SPRING
1. Inspect valve stems and valve guides.
1) Using a caliper gauge, measure the inside diam-
eter of the valve guide.
Valve guide I.D.
Intake / Exhaust : 5.500 ~ 5.512mm (0.216 ~ 0.217in.)
ECBF034A
2) Usi
ng a micrometer, measure the diameter of the
val
ve stem.
Valve stem O.D.
Intake : 5.465 ~ 5.480mm (0.2151 ~ 0.2157in.)
Exhaust : 5.458 ~ 5.470mm (0.2149 ~ 0.2153in.)
K
CRF227A
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