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C7 Industrial Engines Disassembly and Assembly – Cylinder Head – Install

Installation Procedure

  1. Install the new cylinder head gasket.

 

  1. Attach a suitable lifting device to cylinder head (9) . The weight of cylinder head (9) is approximately 108 kg (238 lb). Position cylinder head (9) onto the dowels in the cylinder block.

  1. Use Tooling (A) to lubricate bolts (1) , bolts (2) , and the washers. Install bolts (1) and bolts (2) .

 

  1. Tighten the cylinder head bolts according to the following procedure: 
    1. Tighten Bolt (1) through Bolt (14) in a numerical sequence to a torque of 300 ± 15 N·m (221 ± 11 lb ft).

     

    1. Loosen Bolt (1) through Bolt (14) until the washers are loose under the bolt heads.

     

    1. Tighten Bolt (1) through Bolt (14) in a numerical sequence to a torque of 130 ± 15 N·m (95 ± 11 lb ft).

     

    1. Tighten Bolt (1) through Bolt (14) again in a numerical sequence to a torque of 130 ± 15 N·m (95 ± 11 lb ft).

     

    1. Turn Bolt (1) through Bolt (14) in a numerical sequence for an additional 90° (1/4 turn).

     

    1. Tighten Bolt (15) through Bolt (20) in a numerical sequence to a torque of 55 ± 7 N·m (41 ± 5 lb ft).

 

  1. Connect tube assembly (5) .

 

  1. Connect harness assembly (4) .

 

  1. Position water regulator (3) and tighten hose assembly (6) .

 

  1. Position support assembly (8) and install bolts (7) .

 

  1. Fill the coolant system. Refer to Operation and Maintenance Manual, “Refill Capacities and Recommendations”.

End By:

  1. Install the fan drive. Refer to Disassembly and Assembly, “Fan Drive – Install”.
  2. Install the valve mechanism cover base. Refer to Disassembly and Assembly, “Valve Mechanism Cover Base – Remove and Install”.
  3. Install the electronic unit injectors. Refer to Disassembly and Assembly, “Electronic Unit Injector – Install”.
  4. Install the rocker arm and shaft. Refer to Disassembly and Assembly, “Rocker Arm and Shaft – Install”.

 

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