C6.6 Engines for Caterpillar Built Machines Water Temperature Regulator

Water Temperature Regulator - Remove and Install

C6.6 Engines for Caterpillar Built Machines [KENR6081]

COOLING SYSTEM

LINES GP-WATER

1.1. Removal Procedure

2.1. Installation Procedure

Removal Procedure

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Dispose of all fluids according to local regulations and mandates.

Drain the coolant from the cooling system to a level below the water temperature regulator, into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct draining procedure.
Loosen the hose clamps from the upper radiator hose and disconnect the upper radiator hose from water temperature regulator housing (2).
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Illustration 1 g01336665

Typical example
Remove bolts (1) from water temperature regulator housing (2).
Remove water temperature regulator housing (2) from the cylinder head.
Note: Note the orientation of the water temperature regulator housing.
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Illustration 2 g01336667

Typical example
Remove O-ring seal (3) from water temperature regulator housing (2).

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Ensure that all components of water temperature regulator housing (2) are clean and free of wear or damage. Check the water temperature regulator for correct operation. Refer to System Operation, Testing and Adjusting, "Water Temperature Regulator - Test" for the procedure to test the water temperature regulator. If any components of the water temperature regulator housing are worn or damaged, the complete assembly must be replaced.
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Illustration 3 g01336667

Typical example
If the original water temperature regulator housing is installed, position a new O-ring seal (3) into the groove in water temperature regulator housing (2).
A new water temperature regulator housing is supplied with a new O-ring seal.
Install water temperature regulator housing (2) to the cylinder head.
Note: Ensure the correct orientation of the water temperature regulator housing.
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Illustration 4 g01336665

Typical example
Install bolts (1). Tighten bolts (1) to a torque of 44 N·m (32.5 lb ft).
Connect the upper radiator hose and tighten the hose clamps.
Fill the cooling system to the correct level. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Check" and Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct filling procedure.