G3408 and G3412 Engines Caterpillar


Exhaust Manifold - Water Cooled

Usage:

G3412 3NK


Illustration 1g02704256
Rear view of engine

Table 1
Specification for 105-4666 Exhaust Manifold Gp 
Item  Qty  Part  Specification Description 
6L-8562 Taperlock Stud  Torque to 35 ± 5 N·m (26 ± 4 lb ft)
1D-4706 Bolt  Torque to 54 ± 7 N·m (40 ± 5 lb ft)
5K-5959 O-Ring Seal  Lubricate the bore lightly with 5P-3975 Rubber Lubricant. 
7L-0520 Taperlock Stud  Torque to 35 ± 5 N·m (26 ± 4 lb ft)
9S-8752 Full Nut  Before assembly, lubricate the threads and the bearing surfaces with Loctite C5A Copper Anti-Seize. 
6L-4428 Taperlock Stud  Before assembly, apply blue Loctite 242 to the threads. 
Torque to 35 ± 5 N·m (26 ± 4 lb ft).
4N-5073 Elbow  Be certain that the cup plug must be removed in each cylinder head before the elbows are connected. 


Illustration 2g02704298
Left side view of engine
(11) Tightening sequence

Table 2
Specification for 105-4666 Exhaust Manifold Gp 
Item  Qty  Part  Specification Description 
12  012-7950 Plug  Before assembly, lubricate the threads and the bearing surfaces with Loctite C5A Copper Anti-Seize. 
24  106-1792 Taperlock Stud  Torque to 35 ± 5 N·m (26 ± 4 lb ft)
10  24  168-7800 Locknut  Before assembly, lubricate the threads and the bearing surfaces with Loctite C5A Copper Anti-Seize. 
Tighten the locknut to a torque of 38 ± 5 N·m (28 ± 4 lb ft) as per numerical sequence as shown in Illustration 2.
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