Cylinder Head Assembly: Testing and Inspection

1. Make sure that no crack or other damage exists. In addition to visual inspection, inspect important areas by means of red lead check. Also make sure that gasket installing surface shows no trace of gas and water leaks.
2. Place cylinder head on ST 498267200 cylinder head table, or equivalent.
3. Measure the warping of the cylinder head surface that mates with crankcase by using a straight edge and thickness gauge. If the warping exceeds 0.05 mm (0.0020 inch), regrind the surface with a surface grinder.
Warping limit: 0.05 mm (0.0020 inch).
Grinding limit: 0.1 mm (0.004 inch).
Standard height of cylinder head: 98.3 mm (3.870 inch).

CAUTION: Uneven torque for the cylinder head bolts can cause warping. When reassembling, pay special attention to the torque so as to tighten evenly.