YOKE 4D8685 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 165-4638 Guide 3
B - Loctite C5-A Copper Anti-Seize 1 Start By:
Remove the turbocharger.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g03687001
Remove heat shield (1), heat shield (2), heat shield (3), and temperature sensors (4).
Illustration 2 g03571596
Remove brackets (5) and (9).
Remove clamp assembly (6).
Remove and discard nuts (8). Remove the spacers and remove the exhaust manifold assembly (7).
Illustration 3 g03573919
Remove and discard clamp assemblies (16) and bellows (15).
Remove and discard clamp assemblies (11) and bellows (12). Separate the exhaust manifold sections (10), (13), and (14).
Remove temperature sensors (17). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 165-4638 Guide 3
B - Loctite C5-A Copper Anti-Seize 1
C - Loctite Nickel Anti-Seize 1
Install exhaust manifold assembly (7) in the reverse order of removal.
Install new clamp assemblies (11) and new bellows (12).
Illustration 4 g03573997
Position the new bellows (15) and install new clamp assemblies (16) (not shown). Ensure that the end of the bellows with the taper (A-A) is facing the exhaust manifold.
Illustration 5 g03640862
Illustration 6 g02256453
Torque Sequence
Position the exhaust manifold into place and install Tooling (A) at Location (X).
Apply Tooling (B) on the threads of the new nuts (8). Tighten nuts (8) in the above sequence to a torque of 20 3 N m (15 2 lb ft). Tighten nuts (8) again in the above sequence to a torque of 38 5 N m (28 4 lb ft).
Apply Tooling (C) on the threads of temperature sensors (4). Tighten temperature sensors (4) to a torque of 45 5 N m (33 4 lb ft).