3304 & 3306 – Water Temperature Regulator Disassembly and Assembly

Remove Water Temperature Regulator (Industrial Engine)

1. Drain the coolant from the cooling system.

2. Remove bolts (2) and pipe (1) from the cylinder head.

3. Remove water temperature regulator (3) and gaskets.

Install Water Temperature Regulator (Industrial Engine)

1. Put the water temperature regulator (1) in position in the cylinder head as shown.

2. Install a new gasket and pipe (2) over the water temperature regulator.

3. Install four bolts to hold pipe in place.

4. Fill the cooling system to the correct level.

Remove Water Temperature Regulator (Marine Engine)

1. Remove coolant from engine.

2. Loosen clamps (1) and slide hose on elbow.

3. Remove four bolts (2) and elbow (3) from the cylinder head.

4. Remove water temperature regulator (4) and gasket.

Install Water Temperature Regulator (Marine Engine)

1. Put the water temperature regulator (2) in the cylinder head with the spring toward the head.

2. Install a new gasket (1) over the water temperature regulator.

3. Put the elbow (4) in position and install the bolts to hold it in place.

4. Slide hose on elbow and install two clamps (3).

5. Fill the cooling system to the correct level.

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