Cylinder Head
Cylinder head1. Inspect cylinder head for damage, cracks, and leakage of oil and water. Replace cylinder head if necessary.
2. Measure cylinder head mating surface in six directions as shown in figure.
Distortion: 0.004 inch (0.10 mm) maximum
Notice:
Before resurfacing cylinder head, check following and repair or replace cylinder head if necessary.
a) Sunken valve seats
b) Damage at intake and exhaust manifold mating surfaces
c) Camshaft oil clearances and end play
3. Grind cylinder head mating surface if distortion exceeds specification.
Distortion: 0.004 inch (0.10 mm) maximum
4. Check cylinder head height by measuring from cylinder deck surface to cylinder head cover gasket surface.
5. If cylinder head height is not within specification, replace cylinder head.
Height: 5.272 - 5.28 inch (133.9 - 134.1 mm)
6. Measure intake and exhaust manifold mating surface distortion at two directions shown in figure.
Distortion: 0.008 inch (0.20 mm) maximum
7. If distortion exceeds specification, resurface or replace cylinder head.
Distortion: 0.008 inch (0.20 mm) maximum