C27 and C32 Industrial and Petroleum Engines Caterpillar


Exhaust Manifold

Usage:

C32 B2C


Illustration 1g01420166
Rear view of engine


Illustration 2g02592658
Locknut tightening sequence for exhaust manifold

Table 1
Specification for 274-8565 Exhaust Manifold Gp 
Item  Qty  Part  Specification Description 
4B-3823 Bolt
0S-0509 Bolt
0T-0055 Bolt
0T-0573 Bolt
3B-1915 Bolt
8S-9191 Bolt 
Use the following procedure for tightening bolt (1) through bolt (16):
1. Torque the bolt (1) through bolt (16) in a numerical sequence to 5 ± 3 N·m (44 ± 27 lb in).
2. Torque the bolt (1) through bolt (6) in a numerical sequence to 55 ± 5 N·m (41 ± 4 lb ft).
3. Torque the bolt (7) and bolt (8) in a numerical sequence to 105 ± 20 N·m (77 ± 15 lb ft).
4. Torque the bolt (9) through bolt (16) in a numerical sequence to 47 ± 9 N·m (35 ± 7 lb ft)
17  24  2N-2766 Locknut  Apply Loctite C5A Cooper Anti-Seize to the threads.
Torque the locknut 1 through locknut 12 in the numerical sequence that is shown in Illustration 2 to 38 ± 5 N·m (28 ± 4 lb ft)
18  6L-8562 Taperlock Stud  Torque to 35 ± 5 N·m (26 ± 4 lb ft)
19  109-0076 O-Ring Seal  Lightly lubricate the bore of the O-ring seals with the lubricant that is being sealed. 

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