PUMP-OIL
DESCRIPTION
The oil pump is integral to the balance shaft module (BSM) (2). The oil pump cannot be disassembled for inspection. The pressure relief valve is serviceable and can be removed and inspected. The BSM can be identified by the plastic end caps (1).
REMOVAL
1. Rotate engine to TDC (1,2) on #1 compression stroke.
2. Remove oil pan (Refer to 9 - ENGINE/LUBRICATION/OIL PAN - REMOVAL).
3. Mark the chain (6) and the sprocket (5) for reassembly.
4. Push tensioner piston back into the tensioner body.
5. With piston held back insert tensioner pin 9703 (4) into the tensioner body to hold the piston in the retracted position.
NOTE: Do not remove sprocket from BSM.
6. Remove BSM mounting bolts and discard.
7. Lower the back of the BSM and remove the chain (6) from the sprocket (5).
8. Remove BSM from the engine.
INSTALLATION
CAUTION: Do not reuse Balance Shaft Module (BSM) to engine block bolts. Always discard bolts after removing. Failure to replace bolts can result in engine damage.
1. Clean BSM mounting holes Mopar® brake parts cleaner.
2. Align marks on crankshaft sprocket (2) and chain (1).
3. Align marks on oil pump sprocket (5) and chain (4).
4. Install chain on sprocket.
5. Pivot BSM assembly upwards and position on ladder frame.
6. Start new BSM mounting bolts by hand.
NOTE: Use a three step procedure when torquing BSM mounting bolts.
7. Tighten BSM mounting bolts to 15 N·m (11 ft. lbs.) as shown.
8. Tighten BSM mounting bolts to 29 N·m (22 ft. lbs.) as shown.
9. Rotate bolts an additional 90° as shown.
10. Remove tensioner pin 9703 (4).
11. Install oil pan (Refer to 9 - ENGINE/LUBRICATION/OIL PAN - INSTALLATION).
12. Fill with oil.
13. Start engine and check for leaks.