Cylinder Head Bolt Reusability

CAUTION: Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between d1 and d2 exceeds the limit, replace them with new ones.

Limit (d1 - d2): 0.11 mm (0.0043 inch)

- Lubricate threads and seat surfaces of the bolts with new engine oil.

- If reduction of outer diameter appears in a position other than d2, use it as d2 point.