ELBOW 8M1597 - Caterpillar

2. Remove two bolts (1) that hold the elbow to the water pump. 3. Remove two bolts (2) that hold elbow (3) to the expansion tank. 4. Remove two bolts (4), clip (5) and water pump (6) from the front timing cover. Remove gaskets.Install Jacket Water Pump (Marine Engine)
1. Inspect water pump elbow gaskets and O-ring seal and make replacements if necessary. 2. Put the water pump (1) and clip in position and install the two bolts that hold them. 3. Install elbow (3) with two bolts to the bottom of the expansion tank.4. Put elbow (2) in position and install two bolts to hold it to the water pump.5. Fill engine with coolant to the correct level.Disassemble Jacket Water Pump (Marine Engine)
start by:a) remove jacket water pump 1. Loosen clamp (1) and remove hose elbow (2) from the pump housing. 2. Remove two bolts (4) and cover (3) from housing. 3. Loosen bolt (5) approximately .25 in. (6.35 mm). Hit the bolt with a soft hammer to remove impeller (6) from the shaft. Remove the bolt (5) and impeller (6). 4. Remove spring (7) and seal assembly (8) from the shaf 5. Turn the housing over and remove bolt (9). 6. After the removal of bolt (9) install bolt from tooling (A) in shaft and gear assembly (10).7. Put plate from driver group in tooling (A) on top of bolt, and install the remainder of tooling (A) on gear and bearing assembly as shown.8. Remove gear and bearing assembly (10) with tooling (A). 9. If necessary, remove bearing (11) from the gear with tool (B). 10. Remove retaining ring (12) from housing with tooling (C). Remove the bearing and shaft assembly. 11. If necessary, remove bearing (13) from shaft with tooling (D) and a press. 12. Turn the housing over and remove seal with tooling (D).Assemble Jacket Water Pump (Marine Engine)
The seal must be installed with the lip toward the bearings. 1. Install the lip type seal in the housing with tooling (A) to the bottom of the seal counterbore. Put a thin layer of engine oil on the lip of the seal. 2. Use a press and tooling (A) to install bearing on shaft (1).3. Install the shaft and bearing assembly in housing. 4. Install retaining ring (2) in housing with tooling (B). 5. Use a press and tooling (A) to install bearing (3) on gear (4).
When gear is installed, make sure the pins on the gear engage the holes in the shaft.
6. Put gear (5) and bearing in position on the shaft and install the washer and bolt.
Clean water only is permitted for use as a lubricant for assistance at installation. Do not damage or permit any foreign material on the wear surface of the carbon or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal assembly.
7. Put the ceramic ring (6) in position in the rubber seal. Use hand pressure and tool (which is with