CORE AS-AFTERCOOLER 3743493 - Caterpillar

Cylinder Head Bolt Tightening Procedure
Cylinder head bolt identification and bolt tightening sequence for 3054 Engines.
Cylinder head bolt identification and bolt tightening sequence for 3056 Engines.1. Put engine oil on the threads of the cylinder head bolts and nuts. Tighten all bolts and nuts in number sequence to a torque of 110 N m (80 lb ft).2. Again tighten all bolts and nuts in number sequence to a torque of 110 N m (80 lb ft).3. Tighten all bolts and nuts in number sequence as follows: a. Short bolts (S) 150° furtherb. Medium length bolts (M) 180° furtherc. Long bolts (L) 210° further