COVER 4K7251 - Caterpillar

Removal Procedure
Start By:
Remove the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Remove".
Remove the water temperature regulator. Refer to Disassembly and Assembly, "Water Temperature Regulator - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00619289
Typical example
Remove exhaust manifold shield (3) . Remove the nuts and spacers from studs (1) . Remove exhaust manifold (2) .
Illustration 2 g00632595
Typical example
Remove sleeve assemblies (4) from the cylinder head.Installation Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     5P-3931     Anti-Seize Compound     -    
B     2P-2333     High Temperature Sealer     -    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Before assembly, check the condition of the sleeve assemblies, the studs, and the nuts. If the part is worn or damaged, use new parts for replacement.
Illustration 3 g00632595
Typical example
Apply Tooling (A) to studs (1) . If the studs were removed from the cylinder head, install the studs in the cylinder head. Tighten the studs to a torque of 35 5 N m (26 4 lb ft).
Install sleeve assemblies (4) in the cylinder head.
Illustration 4 g00619289
Typical example
Apply Tooling (B) to the outside diameter of the male ends of exhaust manifold (2) . Put clean engine oil on the female ends of the exhaust manifold.Note: Discard the nuts after use. Use new nuts for installation.
Apply Tooling (A) to the ends of studs (1) . Put exhaust manifold (2) in position on the studs. Install the spacers and nuts on studs (1) .
Illustration 5 g00498448
Tightening sequence for the exhaust manifold
Tighten the nuts for the exhaust manifold in a numeric sequence to a torque of 38 5 N m (28 4 lb ft).
Install exhaust manifold shield (3) . Apply Tooling (A) to the nuts for the exhaust manifold shield. Tighten the nuts for the shield to a torque of 25 7 N m (18 5 lb ft).End By:
Install the water temperature regulator. Refer to Disassembly and Assembly, "Water Temperature Regulator - Remove and Install".
Install the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install".