Cylinder Head Assembly: Testing and Inspection
Cylinder Head Inspection / Repair1. Carry out cooling flaw detection on the cylinder head surface. Replace the cylinder head as necessary.
2. Inspect for the following and repair or replace as necessary.
1) Sunken valve seats
2) Excessive camshaft oil clearance and end play
3. Measure the cylinder head for distortion in the six directions.
4. If the cylinder head distortion exceeds the maximum, repair by grinding height or replace the cylinder head. If the cylinder head height is not as specified, replace it.
Standard height 133.8 - 134.0 mm (5.268 - 5.275 inch)
Grinding 0.10 mm (0.004 inch) maximum
5. Measure the manifold contact surface distortion.
Distortion 0.15 mm (0.006 inch) maximum
6. If the distortion exceeds the specification, grind the surface or replace the cylinder head.