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Home >> Alfa Romeo >> 2021 >> Stelvio Ti >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (8HP75 - Automatic Transmission (Service Information)) >> Pump, Transmission Oil >> Removal And Installation >> Removal And Installation - Transmission Oil Pump

Removal And Installation - Transmission Oil Pump

WARNING: This page is about a different variant/trim than selected.

REMOVAL 

  1. Remove the transmission. Refer to REMOVAL AND INSTALLATION .
  2. Remove the valve body. Refer to VALVE BODY, REMOVAL AND INSTALLATION .
    GC0181441Courtesy of CHRYSLER GROUP, LLC
  3. Remove and DISCARD  the transmission oil pump assembly to case bolts (1).
    GC0183010Courtesy of CHRYSLER GROUP, LLC
  4. Remove and DISCARD  the input shaft O-ring (1) using a small pick or equivalent.
    GC0181860Courtesy of CHRYSLER GROUP, LLC
  5. Carefully pry the transmission oil pump assembly (1) away from the case with a small flat blade screwdriver or equivalent through the case opening.
  6. From the front of the transmission, remove the transmission oil pump assembly.
    GC0183094Courtesy of CHRYSLER GROUP, LLC
  7. Remove the B-clutch damper spring (1).
    GC0183222Courtesy of CHRYSLER GROUP, LLC
  8. Remove the B-piston (1) from the assembly.
    GC0181353Courtesy of CHRYSLER GROUP, LLC
  9. Remove the snap ring (1).
  10. Remove the clutches and spacers (2).
    GC0181853Courtesy of CHRYSLER GROUP, LLC
  11. Remove the hub (1).
    GC0181624Courtesy of CHRYSLER GROUP, LLC
  12. Position the transmission oil pump housing assembly (3) in a suitable press (2).
  13. Using (special tool #8285, Compressor, Spring) (1), press on the fingers of the piston retainer to remove tension on the split retaining ring.
    GC0182378Courtesy of CHRYSLER GROUP, LLC
  14. Remove the two halves of the retaining ring (1).
    GC0183557Courtesy of CHRYSLER GROUP, LLC
  15. Remove the A- clutch belleville spring (1).
    GC0181945Courtesy of CHRYSLER GROUP, LLC
  16. Remove the A-clutch piston (1).
    GC0152253Courtesy of CHRYSLER GROUP, LLC
  17. Remove the bolts (1) and separate the transmission oil pump housing (2) from the transmission oil pump front cover (3).
    GC0185905Courtesy of CHRYSLER GROUP, LLC
  18. Separate the front cover from the transmission oil pump housing and DISCARD  the oil pump housing O-ring seal (1).
    GC0185296Courtesy of CHRYSLER GROUP, LLC
  19. Remove the drive sprockets (2), chain and pump body as an assembly.
  20. Remove and DISCARD  all O-rings.

INSTALLATION 

NOTE:

If transmission oil pump was disassembled, replace all O-rings.

GC0185296Courtesy of CHRYSLER GROUP, LLC
  1. Install the drive sprockets (2), chain (1) and pump body as an assembly into the transmission oil pump housing.
    GC0185905Courtesy of CHRYSLER GROUP, LLC
  2. Set the pump cover (1) onto the transmission oil pump housing.
    GC0157437Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The transmission oil pump bolts under the A-clutch must be replaced.

  3. Install the NEW  bolts (1) and tighten to the proper torque specifications. Refer to TORQUE SPECIFICATIONS  .
    GC0181945Courtesy of CHRYSLER GROUP, LLC
  4. Install the A-clutch piston (1) with NEW  O-ring seals.
    GC0183557Courtesy of CHRYSLER GROUP, LLC
  5. Install the A-clutch belleville spring (1).
    GC0181624Courtesy of CHRYSLER GROUP, LLC
  6. Position the transmission oil pump housing assembly (3) in a suitable arbor press (2).
  7. Using (special tool #8285, Compressor, Spring) (1), press down on the fingers of the piston retainer.
    GC0182378Courtesy of CHRYSLER GROUP, LLC
  8. Install the two retaining ring halves (1).
    GC0181853Courtesy of CHRYSLER GROUP, LLC
  9. Install the hub (1).
    GC0181353Courtesy of CHRYSLER GROUP, LLC
  10. Install the clutches and spacers (2).
  11. Install the snap ring (1).
    GC0182351Courtesy of CHRYSLER GROUP, LLC
  12. Install a NEW  B-piston seal (1).
    GC0183222Courtesy of CHRYSLER GROUP, LLC
  13. Install the B-piston (1).
    GC0183094Courtesy of CHRYSLER GROUP, LLC
  14. Install the B-clutch damper spring (1).
    GC0185905Courtesy of CHRYSLER GROUP, LLC
  15. Install a NEW  oil pump seal (1) and install the oil pump in the case.
    GC0181441Courtesy of CHRYSLER GROUP, LLC
  16. Firmly press the transmission oil pump in place by hand before drawing it in with the NEW  oil pump cover bolts (1).
    GC0152246Courtesy of CHRYSLER GROUP, LLC

    Perform the following procedure to properly tighten the transmission oil pump cover bolts:

    • Step 1: In order to seat the transmission oil pump cover properly, pre-tighten bolts (1), (7) and (9) to 6 N.m (53 in. lb.).
    • Step 2: Working in a clockwise pattern, begin tightening the oil pump cover bolts starting at (1). Tighten to 10 N.m (89 in. lb.).
    • Step 3: Working in a clockwise pattern, finish tightening the oil pump cover bolts starting at (1). Tighten an additional 90°.
    GC0183010Courtesy of CHRYSLER GROUP, LLC
  17. Install the NEW  input shaft O-ring (1).
  18. Install the valve body. Refer to VALVE BODY, REMOVAL AND INSTALLATION .
  19. Install the transmission. Refer to REMOVAL AND INSTALLATION .
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