Warning: Refer to Safety Glasses Warning in the Preface section.
- 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 the width of the cylinder head using a feeler gage and a straight edge.
- Check the sealing surfaces for damage. The cylinder head sealing surfaces must be flat within 0.050 mm (0.002 in) maximum.
- Measure the height of the cylinder head from sealing surface to sealing surface. The cylinder head height should be 134.08-134.23 mm (5.279-5.285 in). If the cylinder head height is less than this value,
replace the cylinder head.
- Inspect all threaded holes for damage.
- Inspect valve seats for excessive wear and burned spots.