G3408 and G3412 Engines Caterpillar


Exhaust Manifold

Usage:

G3408 6NB



Illustration 1g00270053

Note: Apply 5P-3931 Anti-Seize Compound on the threads of the following parts: plugs, studs, bolts and nuts. These parts are for the following items: exhaust manifolds, couplings, elbows and turbocharger support.

(1) Tighten the studs that are in the flange to the following torque: ... 27 ± 7 N·m (20 ± 3 lb ft)

(2) Tighten the long bolt to the following torque: ... 55 ± 7 N·m (40 ± 5 lb ft)

(3) Elbow

Make sure that the cup plug is removed from each cylinder head before the elbows are connected.

(4) Put 9S-3263 Thread Lock on the threads of the stud for installation. Put 5P-3931 Anti-Seize Compound on the threads of the nut. Top of stud to housing ... 83.2 ± 1.5 mm (3.28 ± 0.06 inch)




Illustration 2g00270054

G3408 Torque Sequence




Illustration 3g00548087

G3412 Torque Sequence

(5) Tighten the locknuts for the manifold according to the number sequence to the following torque. ... 52 ± 7 N·m (38 ± 5 lb ft)

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