SHEET 5V3804 - Caterpillar

3304 Engine Shown1. Drain the coolant from the cooling system.2. Remove tube assembly (1) from between the water pump and the exhaust manifold.3. Loosen clamp (2) and slide the hose off water pump elbow (3).4. Remove water pump elbow (3).
3304 Engine Shown5. Loosen two clamps (6), and slide the hose off the water pump on to pipe (5). Remove pipe (5).6. Remove bolts (4) and the water pump. Remove the O-ring seal from the water pump.Install Water Pump
3304 Engine Shown1. Put the O-ring seal in position on water pump (1). Put water pump (1) in position on the timing gear cover, and install the two bolts that hold it.2. Slide the hose over the end of pipe (2). Put the gasket and pipe (2) in position under the expansion tank, and install the bolts that hold it.3. Slide the hose into position on the water pump, and tighten two clamps (3).
3304 Engine Shown4. Put the gaskets and elbow (4) in position between the water pump and cylinder head, and install the bolts that hold it.5. Slide hose (5) into position on the water pump, and tighten the two clamps that hold it.6. Install the tube assembly between the water pump and exhaust manifold.7. Fill the cooling system to the correct level. See the Maintenance Guide.Disassemble Water Pump
START BY:a. remove water pump 1. Remove bolt (1) and the washer. Remove bearing (2) and gear (3) as a unit.2. Use tooling (A), (C) and a press, and remove bearing (2) from gear (3). 3. Remove snap ring (4) with tool (B). 4. Remove bolts (5), the washers and cover (6) from the water pump. 5. Loosen bolt (7) 6.4 mm (.25 in.). Hit the bolt with a soft hammer to remove impeller (8) from the shaft.6. Remove the spring and seal assembly from the shaft. 7. Remove bearing (9) and shaft (10) as a unit. 8. Use tooling (A), (C) and a press to remove bearing (9) from shaft (10). 9. Remove the ceramic ring and seal (11) from the housing. 10. Remove lip-type seal (12) from the housing with tool (C).Assemble Water Pump
1. Install the lip-type seal in the water pump housing with tool (A). The lip of the seal must be toward the bearings. Put clean engine oil on the lip of the seal. 2. Install shaft (1) in bearing (2) with a press. 3. Install shaft (1) and bearing (2) in the housing as shown. 4. Install snap ring (3) with tool (B).
Clean water only is permitted for use as a lubricant for assembly. Do not damage or put hands on the wear surface of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal assembly.
5. Put ceramic ring (4) in position in the rubber seal. Use hand pressure and