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Home >> Jeep >> 2023 >> Cherokee Trailhawk >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (2.4L Engine (Service Information) (2 Of 2)) >> Lubrication >> Pump, Engine Oil >> Installation

Pump, Engine Oil: Installation

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GC0084105Courtesy of CHRYSLER GROUP, LLC
CAUTION:

The balance shaft/oil pump assembly bolts are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down the bolts must be replaced.

  1. Check the balance shaft/oil pump bolts for necking by holding a scale or straight edge against the threads. If all the threads do not contact the scale (2) the bolt must be replaced.
    GC0158283Courtesy of CHRYSLER GROUP, LLC
  2. Clean the balance shaft/oil pump assembly mounting holes with Mopar® Brake & Parts Cleaner.
  3. Align the marks on the balance shaft/oil pump assembly (2) and drive sprocket (1).
  4. With the rear of the balance shaft/oil pump assembly on a slight downward angle, position the gear into the chain links. Make sure the paint marks are aligned.
  5. Pivot balance shaft/oil pump assembly upwards and position on ladder frame.
    Fig 1: Balance Shaft/Oil Pump Bolts Tightening Sequence
    GC0082446Courtesy of CHRYSLER GROUP, LLC
  6. Install the four balance shaft/oil pump bolts finger tight.
  7. Tighten the balance shaft/oil pump bolts in the sequence shown in illustration, following the 3 step torque plus an ending torque angle method. Tighten according to the following torque values:
    • Step 1: All to 15 N.m (11 ft. lbs.)
    • Step 2: All to 29 N.m (22 ft. lbs.)
    • Step 3: All an additional 90° Do not use a torque wrench for this step. 
    GC0158283Courtesy of CHRYSLER GROUP, LLC
  8. Double check the alignment marks to ensure the gear indicator (1) and balance shaft/oil pump assembly indicator (2) are aligned.
    GC0158295Courtesy of CHRYSLER GROUP, LLC
  9. Remove the tie strap (3).
  10. Remove the A/C compressor mounting bolt (2).
  11. Verify that the tensioner (1) has fully extended and is applying pressure to the guide and chain (4).
    GC0164047Courtesy of CHRYSLER GROUP, LLC
  12. Install the splash shield (1) and tighten the bolts to the proper torque specification. Refer to TORQUE SPECIFICATIONS .
  13. Install the oil pan. Refer to PAN, OIL, INSTALLATION .
  14. If removed, install the oil filter and fill the engine crankcase with the proper oil to the correct level. Refer to ENGINE OIL, STANDARD PROCEDURE .
  15. Start the engine and check for leaks.
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