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Home >> Pontiac >> 2006 >> Vibe Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Automatic Transmission - Mu4 - Overhaul) >> Repair Instructions >> Intermediate One-Way Clutch Replacement >> Removal Procedure

Removal Procedure

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    Fig 1: Checking Intermediate Brake Hub Rotation
    GM165042Courtesy of GENERAL MOTORS CORP.
  1. Inspect the intermediate one-way clutch before disassembly by placing the intermediate brake hub and the intermediate one-way clutch onto the rear of the sun gear input drum, holding the sun gear input drum stationary and rotating the intermediate brake hub.
    • The intermediate brake hub should turn freely in a clockwise direction (2) and should not turn in a counterclockwise direction (4).
    • If the intermediate brake hub is installed correctly on the sun gear input drum and the intermediate brake hub can be turned counterclockwise, replace the intermediate brake hub and intermediate one-way clutch
  2. NOTE: The intermediate one-way clutch should be disassembled for inspection purposes only. If excessive wear or damage is found in any component of the intermediate one-way clutch upon inspection, replace the intermediate brake hub assembly.
    Fig 2: Removing Rear Thrust Plate From The Intermediate Brake Hub
    GM165045Courtesy of GENERAL MOTORS CORP.
  3. Remove the rear thrust plate from the intermediate brake hub (1).
  4. Fig 3: Identifying Intermediate One-Way Clutch Retainers & Sprag Assembly
    GM165048Courtesy of GENERAL MOTORS CORP.
  5. Remove the intermediate one-way clutch retainers and the sprag assembly from the intermediate brake hub (4).
  6. Fig 4: Locating Front Planetary Ring Gear Flange Snap Ring
    GM165051Courtesy of GENERAL MOTORS CORP.
  7. Remove the front planetary ring gear flange snap ring (1) from the front planetary ring gear.
  8. Fig 5: View Of Front Planetary Ring Gear Flange
    GM165052Courtesy of GENERAL MOTORS CORP.
  9. Remove the front planetary ring gear flange (2) from the front planetary ring gear (1).
  10. Fig 6: Removing & Installing Sun Gear Input Drum Snap Ring
    GM165054Courtesy of GENERAL MOTORS CORP.
  11. Remove the sun gear input drum snap ring (2) from the sun gear at the rear of the sun gear input drum.
  12. Remove the sun gear (1) from the sun gear input drum (3).
  13. Remove the sun gear snap ring from the sun gear.
  14. Clean all components of the front planetary gearset and the sun gear input and dry these components thoroughly.
  15. Inspect the following components for excessive wear or damage. Replace the intermediate brake hub assembly as necessary:
    • The intermediate one-way clutch outer race
    • The retainers
    • The sprag assembly
  16. Inspect the following components for excessive wear or damage and replace as necessary:
    • The front planetary ring gear
    • The front planetary carrier pinion gears
    • The sun gear
  17. Fig 7: Measuring Standard Front Planetary Ring Gear Flange Bushing Inside Diameter
    GM165057Courtesy of GENERAL MOTORS CORP.
  18. Use a J 26900-6  in order to measure the front planetary ring gear flange bushing inside diameter (2). See Special Tools .
    • The standard front planetary ring gear flange bushing inside diameter should fall within 19.025-19.050 mm (0.7490-0.7500 in).
    • If the front planetary ring gear flange bushing inside diameter is greater than 19.050 mm (0.7500 in), replace the front planetary ring gear flange.
  19. Fig 8: Checking Standard Sun Gear Flange Bushing Inside Diameter With J 26900-6
    GM165058Courtesy of GENERAL MOTORS CORP.
  20. Use the J 26900-6  in order to measure the sun gear flange bushing inside diameter. See Special Tools .
    • The standard sun gear flange bushing inside diameter (1) should fall within 22.025-22.046 mm (0.8671-0.8680 in).
    • The maximum sun gear flange bushing inside diameter (2) is 22.096 mm (0.8699 in).
    • If the sun gear flange bushing inside diameter is greater than specified, replace the sun gear.
  21. Fig 9: Measuring With Feeler Gage Front Planetary Carrier Pinion Gear Thrust Clearance
    GM165059Courtesy of GENERAL MOTORS CORP.
  22. Use a feeler gage (2) in order to measure the front planetary carrier pinion gear thrust clearance.
    • The standard front planetary carrier pinion gear thrust clearance should fall within 0.20-0.50 mm (0.008-0.020 in).
    • If the front planetary carrier pinion gear thrust clearance is greater than 0.50 mm (0.020 in), replace the front planetary carrier.