Cylinder Head Assembly: Testing and Inspection

CYLINDER HEAD INSPECTION

1. Carry out the color contrast penetrate examination on the cylinder head surface.
- If there is a crack, replace the cylinder head.




2. Measure the combustion chamber side of the cylinder head for distortion in six directions as shown in the figure using a straight edge and feeler gauge.
- If it exceeds the maximum specification, replace the cylinder head.

Cylinder head maximum distortion, head gasket side 0.10 mm {0.0039 in}




3. Measure the contact surface of the exhaust manifold and the intake manifold as shown in the figure for distortion using a straight edge and feeler gauge.
- If it exceeds the maximum specification, grind the surface or replace the cylinder head.

Cylinder head maximum distortion, manifold side 0.05 mm {0.002 in}
Cylinder head maximum grinding, manifold side 0.20 mm {0.0079 in}