Cylinder Head Dimensions

- Clean the cylinder head surface.
- Use a reliable straightedge and feeler gauge to check the flatness of cylinder head surface. Check along six positions shown in figure.
- The head surface flatness should be less than 0.03 mm (0.0012 inch). The limit is 0.1 mm (0.004 inch). If beyond the specified limit, replace or resurface it.
- The resurfacing limit is the limit for cylinder head resurfacing that is determined by the amount of cylinder block resurfacing. The amount of cylinder head resurfacing is "A". The amount of cylinder block resurfacing is "B". The maximum limit is A + B = 0.2 mm (0.008 inch.)
- After resurfacing the cylinder head, check that camshaft rotates freely by hand. If resistance is felt, the cylinder head must be replaced.
- Nominal cylinder head height is 117.8 - 118.0 mm (4.638 - 4.464 inch).