For 1990-2009 cars only
- Clean the sealing surfaces.
- Inspect the cylinder head gasket and mating surfaces for leaks, corrosion, and blowby.
- Inspect the cylinder head for cracks.
- Inspect the length and width of the cylinder head using a feeler gage and a straight edge.
- Inspect the sealing surfaces for deformation and warpage. The cylinder head sealing surfaces must be flat, within 0.05 mm (0.002 in) maximum.
- Measure the height of the cylinder head from sealing surface to sealing surface. The cylinder head height should be 138.13-138.18 mm (5.438-5.440 in). If the cylinder head height is less than 138.13 mm (5.438 in), replace the cylinder head.
- Inspect all threaded holes for damage.
- Inspect all valve seats for excessive wear and burned spots.
Warning: Refer to Safety Glasses Warning in the Preface section.
