Cylinder Head Assembly: Testing and Inspection
WARPAGE INSPECTIONChecking Head Warpage:
NOTE: If camshaft-to-holder oil clearances are not within specification, the head cannot be resurfaced.
1. If camshaft-to-holder oil clearances are within specifications, check the head for warpage.
- If warpage is less than 0.05 mm (0.002 in) cylinder head resurfacing is not required.
- If warpage is between 0.05 mm (0.002 in) and 0.2mm (0.008 in), resurface cylinder head.
- Maximum resurface limit is 0.2mm (0.008 in) based on a height of 100 mm (3.94 in).
Check With Straight Edge In Areas Indicated:
2. Measure along edges, and 3 ways across center.