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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Automatic Transaxle - 4T65-E - Overhaul) >> Repair Instructions >> Accumulator Components Assemble >> Assembly Procedure

Assembly Procedure

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    Fig 1: View Of Accumulator Housing, Cover Spacer Plate Assembly & Cover
    GM49493Courtesy of GENERAL MOTORS CORP.
  1. Inspect the accumulator housing (140), the accumulator cover spacer plate assembly (134) and the accumulator cover (132) for the following conditions:
    • Damaged lube and servo oil pipe holes in the accumulator cover (132)
    • Damaged, improperly machined or porous accumulator cover (132)
    • Bent or damaged accumulator cover spacer plate assembly (134)
    • Stripped or damaged bolt holes in the accumulator housing (140)
    • Damaged, worn, improperly machined or porous accumulator housing (140)
    • Leaking, loose or missing cup plugs in the accumulator housing (140)
    2. Fig 2: Accumulator Pistons, Springs, Seals And Pins Inspection Areas
    GM49500Courtesy of GENERAL MOTORS CORP.
  2. Inspect the accumulator pistons, springs, seals and pins for the following conditions:
    • Broken or collapsed piston outer springs (138, 142)
    • Broken or collapsed piston cushion springs (139, 143)
    • Bent or worn accumulator piston pins (135A/B)
    • Damaged, worn or porous accumulator pistons (136A/B)
    • Damaged accumulator piston seals (137A/B)
    3. Fig 3: Identifying Servo And Lube Oil Pipe Components
    GM13025Courtesy of GENERAL MOTORS CORP.
  3. Inspect the servo and lube oil pipe components (124-130) and the 2-1 manual band servo cover (104) for the following conditions:
    • Damaged lube and servo oil pipe holes in the servo cover (104)
    • Damaged, improperly machined or porous servo cover (104)
    • Bent, plugged or damaged lube and servo oil pipes (124, 125, 126, 130)
    • Plugged or damaged lube oil hose (128)
    • Damaged hose clamps (127)
    • Damaged lube oil pipe retainer (129)
    • Missing lube oil pipe washer (130)
    4. Fig 4: Locating 2-3 Accumulator Piston Components
    GM49504Courtesy of GENERAL MOTORS CORP.
  4. Install the 2-3 accumulator piston oil seal ring (137B) onto the 2-3 accumulator piston (136B). Lubricate the oil seal ring with automatic transmission fluid.
  5. Assemble the 2-3 accumulator piston pin (135B) and piston (136B).
    6. IMPORTANT: Do not mix up spring or pistons/springs. Be sure to install the correct springs in the correct bore.
  6. Install the 2-3 accumulator piston springs (138, 143) and piston assembly (136B) into the accumulator housing (140).
    7. Fig 5: View Of 1-2 Accumulator Piston Components
    GM49507Courtesy of GENERAL MOTORS CORP.
  7. Install the 1-2 accumulator piston oil seal ring (137A) onto the 1-2 accumulator piston (136A). Lubricate the oil seal ring with automatic transmission fluid.
  8. Assemble the 1-2 accumulator piston pin (135A) and piston (136A).
    9. IMPORTANT: Do not mix up spring or pistons/springs. Be sure to install the correct springs in the correct bore.
  9. Install the 1-2 accumulator piston springs (139, 142) and the piston assembly (136A) into the accumulator housing (140).
    10. Fig 6: Installing Accumulator Cover Bolts
    GM49515Courtesy of GENERAL MOTORS CORP.
  10. Assemble the accumulator cover spacer plate assembly (134) and the accumulator cover (132) onto the accumulator housing (140).
    11. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  11. Install seven accumulator cover bolts (131).

    Tighten:  Tighten the accumulator cover bolts to 12 N.m (106 lb in).

    12. Fig 7: Connecting 2-1 Manual Band Servo Cover To Accumulator Assembly
    GM13031Courtesy of GENERAL MOTORS CORP.
  12. Assemble the lube oil pipe (126), hose (128), hose clamps (127), pipe retainer (129) and pipe with washer (130).
  13. Assemble the 2-1 manual band servo and forward band servo oil pipes (124, 125) into the accumulator assembly (132-140).
  14. Assemble the 2-1 manual band servo and forward band servo oil pipes (124, 125) into the 2-1 manual band servo cover (104).
  15. Install the lube oil pipe assembly (126-130) into the accumulator assembly (132-140).
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