Oil Pump

DISASSEMBLY

Fig. 94:

1. Remove the bolts holding the reaction shaft support to the oil pump (Fig. 94).
2. Remove the reaction shaft support from the oil pump (Fig. 94).
3. Remove all bolts holding the oil pump halves together (Fig. 94).
4. Using suitable prying tools, separate the oil pump sections by inserting the tools in the supplied areas and prying the halves apart.

NOTE: The oil pump halves are aligned to each other through the use of two dowels. Be sure to pry upward evenly to prevent damage to the oil pump components.

Fig. 95:

5. Remove the screws holding the separator plate onto the oil pump body (Fig. 95).
6. Remove the separator plate from the oil pump body (Fig. 95).
7. Mark all gears for location. The gears are select fit and if the oil pump is to be reused, the gears must be returned to their original locations.
8. Remove the oil pump gears from the oil pump case (Fig. 95).

Fig. 96:

Fig. 97:

9. Remove the oil pump valve retainers and associated valve and spring one at a time (Fig. 96) (Fig. 97). Mark the combination of components as a group and tag them as to the location from which they were removed.

ASSEMBLY
1. Clean and inspect all components. Make sure that all passages are thoroughly cleaned and are free from dirt or debris. Make sure that all valves move freely in their proper bore. Make sure that all gear pockets and bushings are free from excessive wear and scoring. Replace the oil pump if any excessive wear or scoring is found.
2. Coat the gears with Mopar ATF+3, type 7176 and install into their original locations.
3. Lubricate the oil pump valves with Mopar ATF+3, type 7176 and install the valve, spring and retainer into the appropriate oil pump valve body bore (Fig. 96) (Fig. 97).
4. Place the separator plate onto the oil pump body (Fig. 95).
5. Install the screws to hold the separator plate onto the oil pump body (Fig. 95). Tighten the screws to 4.5 Nm (40 in. lbs.).
6. Position the oil pump cover onto the locating dowels (Fig. 94).
7. Seat the two oil pump halves together and install all bolts finger tight.
8. Torque all bolts down slowly starting in the center and working outward. The correct torque is 4.5 Nm (40 in. lbs.).
9. Verify that the oil pump gears rotate freely and smoothly.
10. Position the reaction shaft support into the oil pump (Fig. 94).
11. Install and torque the bolts to hold the reaction shaft support to the oil pump (Fig. 94). The correct torque is 12 Nm (105 in. lbs.).