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Remove valve stem seals.
Clean carbon deposits in combustion chamber.
Clean residues and foreign materials on cylinder
head matching surface.
Caution
Do not damage the matching surface of cylinder
head.
6-5 Cylinder Head Inspection
Check if spark plug and valve holes are cracked.
Measure cylinder head warp with a straightedge
and thickness gauge.
Service limit: 0.5 mm
Camshaft
Inspect cam lobe height for damaged.
Service Limit:
IN: Replacement when less than 34.45mm
EX: Replacement when less than 34.30mm
Inspect the camshaft bearing for looseness or
wear out. If any damage, replace whole set of
camshaft and bearing.
Valve stem seals
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