SERIES 60 SERVICE MANUAL 3. Lift the head into position with lift bracket (J–35641–A). See Figure 1-43. Lower it into place over the guide studs (J–35784) until it seats on the block deck dowels. See Figure 1-42. Figure 1-43 Cylinder Head Installation 4. Remove the guide studs. NOTICE: If gasket part number 23530421 is being used, the cylinder head bolts must not be reused. Failure to install new style bolts when using this gasket may result in improper clamp load, which could cause gasket failure and severe engine damage. 5.
Install the head bolts with special hardened washers, lubricating the threads and bolt-head contact areas with a small amount of International Compound #2®, or equivalent. 6. For engines built before September 2002 torque the head bolts to 250-285 N·m (184-210 lb·ft) in the following sequence. See Figure 1-44. For engines built after September 2002 a new style cylinder head bolt will be used for all Series 60 On-Highway engines. This bolt may or may not be identified with white paint. The new bolt will be identified with a groove on top of bolt. See Figure 1-45. Torque the new head bolts to 298 N·m (220 lb·ft). There is no change to the procedure other than the new torque value.
The new head bolt can be used with the former cylinder head gaskets, the former head bolts cannot be used with the new head gasket. Former and new bolts must not be mixed. All information subject to change without notice. (Rev. 2005) 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION 1-55