Inspect Cylinder Head For Flatness

(a) Using a precision straight edge and a feeler gauge, measure the surface contacting the cylinder block and the manifolds for warpage. Maximum warpage:

Item

Specified Condition

Cylinder block side

0.05 mm (0.0020 in.)

Intake manifold side

0.08 mm (0.0031 in.)

Exhaust manifold side

0.08 mm (0.0031 in.)

If the warpage is greater than the maximum, replace the cylinder head.

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