Cylinder Head Inspection
CYLINDER HEAD INSPECTION1. Perform color contrast penetrate examination on the cylinder head surface.
- Replace the cylinder head if necessary.
2. Inspect for the following and repair or replace if necessary.
1 Sunken valve seats (2) Excessive camshaft oil clearance and end play
3. Measure the cylinder head for distortion in six directions as shown in the figure.
- If it exceeds the maximum specification, replace the cylinder head.
Maximum distortion 0.10 mm {0.004 inch}
4. Measure the manifold contact surface distortion as shown in the figure.
- If it exceeds the maximum specification, grind the surface or replace the cylinder head.
Maximum distortion °0.10 mm {0.004 inch}
Maximum grinding °0.15 mm {0.006 inch}