VALVE-EXHAUST 1487455 - Caterpillar

Illustration 1 g01420166
Rear view of engine
Illustration 2 g02592658
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 8 6L-8562 Taperlock Stud Torque to 35 5 N m (26 4 lb ft).
19 4 109-0076 O-Ring Seal Lightly lubricate the bore of the O-ring seals with the lubricant that is being sealed.