Duramax LLY – ENGINE DISASSEMBLY – Oil Pump and Drive Removal

1. Remove nut from pump mounting stud (Figure 2-93).

2. Loosen bracket clamp screw and rotate bracket off mounting stud.

3. Remove pump mounting stud.

4. Lift and remove pump and pump shaft.

5. Remove oil pump drive clamp.

6. Lift and remove oil pump drive from block (Figure 2-94).

7. Remove and discard pump drive gasket.