LINK 3844229 - Caterpillar

2. Remove fan guard (3). Loosen clamps (2) and slide hose (1) back on pipe. 3. Loosen clamps on bottom hose (4) and slide hose off of water pump elbow.4. Remove the bolts (5) that hold water pump (6) to timing gear cover and cylinder head. Remove the water pump.Install Water Pump
1. Put water pump (1) in position on the timing gear cover. Install the two bolts that hold it. 2. Install the two bolts (3) that hold the water pump elbow to the cylinder head.3. Put hose (4) in position on the elbow for the water pump and tighten the two clamps that hold it.4. Put hose in position under the water pump. Tighten the two clamps that hold it.5. Install fan guard (2).6. Fill the cooling system with coolant to the correct level. See LUBRICATION AND MAINTENANCE GUIDE.Disassemble Water Pump
start by: a) remove water pump 1. Remove bolts (1) and cover (2) from the housing.2. Loosen bolt in the impeller .25 in. (6.35 mm). Hit the bolt with a soft hammer to remove the impeller from the shaft. 3. Remove the bolt, impeller (4), spring (3), and seal. 4. Turn the housing over and remove bolt (5) from the gear.5. Remove retaining ring (7) and bearing from the housing.6. Remove bearing (6) from the gear. 7. Remove snap ring (8). Remove bearing and shaft.8. Remove the bearing from the shaft.9. Remove lip seal from housing.Assemble Water Pump
1. Install lip seal in water pump housing with tooling (A). The lip of the seal must be toward the bearings. Put clean SAE 30 engine oil on the lip of the seal. 2. Install bearing (2) on shaft (1).3. Install shaft and bearing in housing. Install snap ring that holds bearing in place.4. Install bearing on gear. Install gear in the housing.5. Install bolt to hold gears in place. 6. Install seal and ring (3) in the housing. 7. Install seal (4) and spring on the shaft.8. Install impeller (6) and bolt (5). Tighten bolt to a torque of 28 1 lb.ft. (39 1 N m).end by: a) install water pump