8. CYLINDER HEAD/VALVES MXU 500 IRS Apply engine oil to cylinder head bolt (No. 10 13) threads. Install the common camshaft holder by arrow mark facing outside. Install and tighten the holder bolts (No. 10 13) in a crisscross pattern in five steps to the specified torque as follow diagram. Tighten the bolts to the specified torque in sequence kgf-m (N-m) (10) (11) (12) (13) Step 4 1.2 (12) Step 5 2.3 (23) "Arrow" Mark 8-14