Service Limits & General Specifications

CYLINDER HEAD DISTORTION





Clean the surface of the cylinder head. Use a reliable straightedge and feeler gauge to check the flatness of cylinder head surface.

Check alone six Positions as shown.
Head surface distortion
Limit 0.1 mm (0.004 inch)
Standard Less than 0.03 mm (0.0012 inch)

If beyond the specified limit, resurface or replace it.

The limit for cylinder head resurfacing is determined by the cylinder block resurfacing.
Resurfacing Limit
Amount of cylinder head resurfacing is A.
Amount of cylinder block resurfacing is B.
The maximum limit A + B = 0.2 mm (0.008 inch)

After resurfacing cylinder head, check that camshaft rotates freely by hand. If resistance is felt, cylinder head must be replaced.
Nominal cylinder head height 126.3 - 126.5 mm (4.972 - 4.980 inch)





CYLINDER HEAD