C27 and C32 Engines for Caterpillar Built Machines Caterpillar

Exhaust Manifold

Usage:

992K 880

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Illustration 1	g03152840
Front view

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Table 1
Specification for 339-5335 Exhaust Manifold Gp and 344-3588 Exhaust Manifold Gp
Item	Qty	Part	Specification Description
1	24	2N-2766 Locknut	Before assembly, apply Loctite C5A Cooper Anti-Seize to the threads.
C	2	9N-5085 Clamp	Orientation for the clamps is 90 ± 2 degrees.
D	2	9N-5085 Clamp	Orientation for the clamps is 32.5 ± 2.0 degrees.

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Illustration 2	g03152839

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Table 2
Item	Qty	Part	Specification Description
2	8	313-9550 Taperlock Stud	Torque to 35 ± 5 N·m (26 ± 4 lb ft).
3	8	9N-5085 Clamp	Torque to 7.5 ± 1.0 N·m (66.4 ± 8.9 lb in).
4	4	9N-5085 Clamp	Torque to 7.5 ± 1.0 N·m (66.4 ± 8.9 lb in).
G	-	-	Orientation for the clamps is 92.5 ± 2.0 degrees.
H	-	-	Orientation for the clamps is 32.5 ± 2.0 degrees.

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Illustration 3	g03152838

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Table 3
Item	Qty	Part	Specification Description
Use a centering tool in at least one oversize hole per manifold section in order to align the manifolds. Do not remove the centering tool until the locknuts are required to be tightened in the numerical sequence that is shown in Illustration 3.
-	-	-	1. Tighten all of the locknuts that secure the exhaust manifold to the engine block to a torque of 20 ± 3 N·m (177 ± 27 lb in). Follow the numerical sequence that is shown in Illustration 3.
-	-	-	2. Tighten all of the locknuts that secure the exhaust manifold to the engine block to a torque of 38 ± 5 N·m (28 ± 4 lb ft). Follow the numerical sequence that is shown in Illustration 3.

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