C7 Industrial Engines Specifications – Turbocharger | Caterpillar Engines Troubleshooting

(1) Torque for the clamp assembly … 13.5 ± 1.0 N·m (119.5 ± 8.9 lb in)

(2) Use the following procedure to tighten the clamp assembly:

(3) Opening pressure of the wastegate at 0.50 mm (0.020 inch) lift … 180 kPa (26 psi)

Front view of engine

Note: Before assembly, apply 4C-5599 Anti-Seize Compound to the threads of the locknuts.

(4) Torque for four locknuts … 54 ± 5 N·m (39.8 ± 3.7 lb ft)

Table 1
Specification for 281-4202 Turbocharger Gp
Item	Qty	Part	Specification Description
1	1	137-1602 Clamp As	Torque to 13.6 ± 1.2 N·m (120.4 ± 10.6 lb in).
2	1	158-6072 Clamp As	Use the following procedure to tighten the clamp assembly: 1.Tighten to 18.1 N·m (160.2 lb in). 2. Loosen to 5.6 N·m (50.0 lb in). 3. Again, tighten to 13.6 ± 1.2 N·m (120.4 ± 10.6 lb in).
3	–	–	Opening pressure of the wastegate at 0.50 mm (0.020 inch) lift 155 kPa (22 psi).
4	4	3E-8017 Locknut	Before assembly, apply 4C-5599 Anti-Seize Compound to the threads. Torque to 54 ± 5 N·m (40 ± 4 lb ft).