Avenger 2008

Oil Pump

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Inspection



2.7L Engine

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

  1. Disassemble the oil pump.
  2.  
  3. Clean all oil pump components.
  4.  
  5. Inspect mating surface of the oil pump housing and cover. Replace oil pump if deeply scratched or grooved (minor surface scratches and polishing is normal).
  6.  
  7. Lay a straightedge across the pump cover surface (3). If a 0.001 inches (0.025 mm) feeler gauge can be inserted between cover and straight edge, cover should be replaced.

    Click image to see an enlarged view

    Fig. Lay a straightedge across the pump cover surface (3)

  8.  
  9. Measure thickness and diameter of outer rotor. If outer rotor thickness measures 0.373 inches (9.474 mm) or less, or if the diameter is 3.5108 inches (89.174 mm) or less, replace outer rotor.

    Click image to see an enlarged view

    Fig. Measure thickness and diameter of outer rotor

  10.  
  11. If inner rotor measures 0.373 inches (9.474 mm) or less replace inner rotor.

    Click image to see an enlarged view

    Fig. If inner rotor measures 0.373 inches (9.474 mm) or less replace inner rotor

  12.  
  13. Slide outer rotor into body, press to one side with fingers and measure clearance between rotor and body. If measurement is 0.015 inches (0.39 mm) or more, replace body only if outer rotor is in specifications.

    Click image to see an enlarged view

    Fig. Slide outer rotor into body, press to one side with fingers and measure clearance between rotor and body

  14.  
  15. Install inner rotor into body. If clearance between inner and outer rotors is 0.008 inches (0.20 mm) or more, replace both rotors.

    Click image to see an enlarged view

    Fig. Install inner rotor into body

  16.  
  17. Place a straightedge across the face of the body, between bolt holes. If a feeler gauge of 0.003 inches (0.077 mm) or more can be inserted between rotors and the straightedge, replace pump assembly ONLY if rotors are in specification.

    Click image to see an enlarged view

    Fig. Place a straightedge across the face of the body, between bolt holes

  18.  
  19. Inspect oil pressure relief valve plunger for scoring and free operation in its bore. Small marks may be removed with 400-grit wet or dry sandpaper.
  20.  
  21. The relief valve spring has a free length of approximately 1.95 inches (49.5 mm) it should test between 23-25 pounds when compressed to 1.34 inches (34 mm). Replace spring that fails to meet specifications.
  22.  
  23. Assemble oil pump.
  24.  

3.5L Engine

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

  1. Disassemble oil pump.
  2.  
  3. Clean all parts thoroughly. Mating surface of the oil pump housing should be smooth. Replace pump cover if scratched or grooved.
  4.  
  5. Lay a straightedge (1) across the pump cover surface. If a 0.001 inches (0.025 mm) feeler gauge blade (2) can be inserted between cover and straight edge, cover should be replaced.

    Click image to see an enlarged view

    Fig. Lay a straightedge (1) across the pump cover surface

  6.  
  7. Measure thickness and diameter of outer rotor. If outer rotor thickness measures 0.563 inches (14.299 mm) or less, or if the diameter is 3.141 inches (79.78 mm) or less, replace outer rotor.

    Click image to see an enlarged view

    Fig. Measure thickness and diameter of outer rotor

  8.  
  9. If inner rotor measures 0.563 inches (14.299 mm) or less replace inner rotor.

    Click image to see an enlarged view

    Fig. If inner rotor measures 0.563 inches (14.299 mm) or less replace inner rotor

  10.  
  11. Slide outer rotor into body, press to one side with fingers and measure clearance between rotor and body. If measurement is 0.015 inches (0.39 mm) or more, replace body only if outer rotor is in specifications.

    Click image to see an enlarged view

    Fig. Slide outer rotor into body, press to one side with fingers and measure clearance between rotor and body

  12.  
  13. Install inner rotor into body. If clearance between inner (3) and outer (2) rotors is 0.008 inches (0.20 mm) or more, replace both rotors.

    Click image to see an enlarged view

    Fig. Install inner rotor into body

  14.  
  15. Place a straightedge across the face of the body, between bolt holes. If a feeler gauge of 0.003 inches (0.077 mm) or more can be inserted between rotors and the straightedge, replace pump assembly ONLY if rotors are in specs.

    Click image to see an enlarged view

    Fig. Place a straightedge across the face of the body, between bolt holes

  16.  
  17. Inspect oil pressure relief valve plunger for scoring and free operation in its bore. Small marks may be removed with 400-grit wet or dry sandpaper.
  18.  
  19. The relief valve spring (2) has a free length of approximately 1.95 inches (49.5 mm). It should test between 23-25 lbs. (101-110 N) when compressed to 1 11 / 32 inches (34 mm). Replace spring that fails to meet specifications.

    Click image to see an enlarged view

    Fig. The relief valve spring (2) has a free length of approximately 1.95 inches (49.5 mm)

  20.  
  21. Assemble oil pump.
  22.  

Removal & Installation



2.4L Engine

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

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).

Click image to see an enlarged view

Fig. Balance Shaft Module (BSM) (2)

  1. Rotate engine to TDC (1,2) on #1 compression stroke.

    Click image to see an enlarged view

    Fig. Rotate engine to TDC (1,2) on #1 compression stroke

  2.  
  3. Remove oil pan.
  4.  
  5. Mark the chain (6) and the sprocket (5) for reassembly.

    Click image to see an enlarged view

    Fig. Mark the chain (6) and the sprocket (5)

  6.  
  7. Push tensioner piston back into the tensioner body.

    Click image to see an enlarged view

    Fig. Push tensioner piston back into the tensioner body

  8.  
  9. 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.

  10.  
  11. Remove BSM mounting bolts. Discard 180 mm bolts, 185 mm bolts can be reused.
  12.  
  13. Lower the back of the BSM and remove the chain (6) from the sprocket (5).

    Click image to see an enlarged view

    Fig. Remove the chain (6) and the sprocket (5)

  14.  
  15. Remove BSM from the engine.
  16.  

To install:


CAUTION
There are two different Balance Shaft Module (BSM) to engine block bolts used. 180 mm bolts with a lock-patch on the threads or 185 mm bolts without lock-patch. Do not reuse the 180 mm bolts. Always discard 180 mm bolts after removing. Failure to replace these bolts can result in engine damage. The 185 mm bolts are reusable. Install the same length bolts that were removed and use either four new 180 mm bolts or four 185 mm bolts.

  1. The 185 mm (7.283 in.) length bolts must be checked for stretching. Check the bolts with a straight edge for necking. If the bolts are necked down, they must be replaced.

    Click image to see an enlarged view

    Fig. Check bolts for necking by holding a scale or straight edge against the threads

  2.  
  3. Clean BSM mounting holes with Mopar® brake parts cleaner.
  4.  
  5. If chain was removed, align marks on crankshaft sprocket (2) and chain (1).

    Click image to see an enlarged view

    Fig. Align marks on crankshaft sprocket (2) and chain (1)

  6.  
  7. Align marks on oil pump sprocket (5) and chain (4).
  8.  
  9. Install chain on sprocket.
  10.  
  11. Pivot BSM assembly upwards and position on ladder frame.
  12.  
  13. Start BSM mounting bolts by hand.
    NOTE
    Use a three step procedure when tightening BSM mounting bolts.



    Click image to see an enlarged view

    Fig. Proper tightening sequence for BSM bolts

  14.  
  15. Tighten new 180 mm BSM mounting bolts as follows:
    1. Tighten to 11 ft. lbs. (15 Nm) in the sequence shown.
    2.  
    3. Tighten to 24 ft. lbs. (33 Nm) in the sequence shown.
    4.  
    5. Rotate bolts an additional 90° in the sequence shown.
    6.  

  16.  
  17. Tighten 185 mm BSM mounting bolts as follows:
    1. Tighten to 11 ft. lbs. (15 Nm) in the sequence shown.
    2.  
    3. Tighten to 22 ft. lbs. (29 Nm) in the sequence shown.
    4.  
    5. Rotate bolts an additional 90° in the sequence shown.
    6.  

  18.  
  19. Remove tensioner pin 9703 (4).

    Click image to see an enlarged view

    Fig. Remove tensioner pin 9703 (4)

  20.  
  21. Install oil pan.
  22.  
  23. Fill with oil.
  24.  
  25. Start engine and check for leaks.
  26.  

2.7L Engines

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

The oil pump pressure relief valve can be serviced by removing the oil pan.

  1. Remove crankshaft vibration damper.
  2.  
  3. Remove timing chain cover.
  4.  
  5. Remove timing chain and sprockets.
  6.  
  7. Remove oil pan.
  8.  
  9. Ensure that crankshaft position is at 60° ATDC of No.1 cylinder, or crankshaft sprocket mark aligns with mark on oil pump (1). This position will properly locate oil pump upon installation.

    Click image to see an enlarged view

    Fig. Crankshaft sprocket mark aligns with mark on oil pump (1)

  10.  
  11. Remove oil pick-up tube (3) and O-ring.

    Click image to see an enlarged view

    Fig. Remove oil pick-up tube (3) and O-ring

  12.  
  13. Remove oil pump attaching bolts (1).
  14.  
  15. Remove oil pump.
  16.  

To install:


CAUTION
Crankshaft position must be at 60° ATDC of No.1 cylinder before installing oil pump. This position will properly locate oil pump. If not properly located, severe damage to oil pump can occur.

  1. Prime oil pump before installation by filling rotor cavity with engine oil.
  2.  
  3. If crankshaft has been rotated, it must be repositioned to 60° ATDC of No.1 cylinder prior to oil pump installation.
  4.  
  5. Install oil pump carefully over crankshaft and into position.
  6.  
  7. Install oil pump attaching bolts. Tighten bolts to 21 ft. lbs. (28 Nm).
  8.  
  9. Install oil pick-up tube (3) with new O-ring. Lubricate O-ring before installation. Tighten attaching bolts to 21 ft. lbs. (28 Nm).
  10.  
  11. Install oil pan.
  12.  
  13. Install timing chain and sprockets.
  14.  
  15. Install timing chain cover.
  16.  
  17. Install crankshaft vibration damper.
  18.  
  19. Fill crankcase with engine oil to correct level.
  20.  

3.5L Engine

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

It is necessary to remove the oil pump body to service the oil pump rotors.

The oil pump pressure relief valve can be serviced by removing the oil pan.

  1. Drain the cooling system.
  2.  
  3. Remove the timing belt..
  4.  
  5. Remove the crankshaft sprocket.
  6.  
  7. Remove the oil pan.
  8.  
  9. Remove the oil pickup tube.
  10.  
  11. Remove the oil pump fasteners.
  12.  
  13. Remove pump and gasket from engine.
  14.  

To install:


NOTE
Thoroughly clean all bolt threads and threaded area in the engine, removing all oil residue, before assembly.

  1. Prime oil pump before installation by filling rotor cavity with clean engine oil.
  2.  
  3. Install oil pump and gasket carefully over the crankshaft and position pump onto block.
    NOTE
    DO NOT apply the thread sealant to the underside of the bolt head.

  4.  
  5. Apply Mopar Thread Sealant as directed on the package to the oil pump cover bolts where indicated. The sealant must be applied from the tip to approximately 10 mm of the thread length.
  6.  
  7. Tighten the oil pump cover bolts to 105 inch lbs. (12 Nm).
  8.  
  9. Tighten oil pump to block bolts to 21 ft. lbs. (28 Nm)
  10.  
  11. Install new O-ring on oil pickup tube.
  12.  
  13. Install oil pickup tube.
  14.  
  15. Install oil pan.
  16.  
  17. Install crankshaft sprocket.
  18.  
  19. Install timing belt.
  20.  
  21. Install the timing belt covers.
  22.  
  23. Install the crankshaft vibration damper.
  24.  
  25. Install the accessory drive belts.
  26.  
  27. Fill the cooling system.
  28.  
  29. Fill engine crankcase with proper oil to the correct level.
  30.  

 
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