KEY 4D3964 - Caterpillar

Removal Procedure
Start By:
If the engine has a fan, remove the fan and pulleys. Refer to Disassembly and Assembly, "Fan - Remove and Install" for the correct procedure.
Remove the vibration damper and pulley assembly. Refer to Disassembly and Assembly, "Vibration Damper and Pulley - Remove" for the correct procedure.
Remove the water pump. Refer to Disassembly and Assembly, "Water Pump - Remove" for the correct procedure.
Illustration 1 g02706916
Remove bolts (3) and bolts (4). Identify the positions of the different length bolts.
Remove front cover (1) from the front housing.
Remove gasket (2) from front cover (1). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Guide Stud
(M8 by 70 mm) 2
Illustration 2 g02706917
Thoroughly clean the gasket surface of the front housing.
If the original front cover is installed, follow Step 2.a through Step 2.b.
Thoroughly clean front cover (1).
Install a new gasket (2) to front cover (1). Engage three Locators (Y) (not shown) into the holes in the front cover.
Install Tooling (A) into Holes (X) in the front housing.
Use Tooling (A) in order to position the front cover assembly onto the front housing.
Install bolts (3) and bolts (4) finger tight. Ensure that the different length bolts are installed in the correct positions.
Loosely install the water pump assembly and remove Tooling (A). Refer to Disassembly and Assembly, "Water Pump - Install" for the correct procedure.
Tighten bolts (3) and bolts (4) to a torque of 22 N m (195 lb in).
Tighten the bolts for the water pump to a torque of 22 N m (195 lb in). Refer to Disassembly and Assembly, "Water Pump - Install" for the correct tightening sequence. End By:
If the engine has a fan, install the fan and pulleys. Refer to Disassembly and Assembly, "Fan - Remove and Install" for the correct procedure.
Install the vibration damper and pulley assembly. Refer to Disassembly and Assembly, "Vibration Damper and Pulley - Install" for the correct procedure.