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Nag1 Automatic Transmission (Service Information): Assembly

NOTE:

If the transmission is being reconditioned (clutch/seal replacement) or replaced, it is necessary to perform the TCM Adaptation Procedure using the scan tool. Refer to MODULE, TRANSMISSION CONTROL (TCM), STANDARD PROCEDURE .

GC0081188Courtesy of CHRYSLER GROUP, LLC
1 - THRUST BEARING NO. 1
2 - THRUST BEARING NO. 2
3 - THRUST BEARING NO. 3
4 - THRUST BEARING NO. 4
5 - THRUST BEARING NO. 5
6 - THRUST BEARING NO. 6
7 - ROLLER BEARING NO. 7
8 - THRUST BEARING NO. 8
9 - ROLLER BEARING NO. 9
GC0086152Courtesy of CHRYSLER GROUP, LLC
1 - SNAP-RING
2 - HOLDING CLUTCH B3 DISCS
3 - SPRING WASHER
4 - HOLDING CLUTCH B2
5 - PARK GEAR
6 - TRANSMISSION HOUSING
7 - BOLTS - M8X60
  1. Insert parking lock gear (5).
  2. Install multiple-disc holding clutch B2 (4) in transmission housing (6).
  3. Screw in both Torx socket bolts (7) and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
    GC0086153Courtesy of CHRYSLER GROUP, LLC
    1 - OUTER DISC - 6.5 MM (0.256 IN.)
    2 - OUTER DISCS - 1.8 MM (0.071 IN.)
    3 - OUTER DISCS - 1.8 MM (0.071 IN.)
    4 - SPRING WASHER
    5 - PISTON
    6 - FRICTION DISCS
    7 - SNAP-RING
    8 - B3 DISC CARRIER
    NOTE:

    During the measurement the snap ring (7) must contact the upper bearing surface of the groove in the outer multiple-disc carrier (8).

    NOTE:

    Pay attention to sequence of discs. If the original clutch discs are reused, be sure to return the disc identified on disassembly as belonging on top of the spring washer (4) to its original location. Place new friction multiple-discs in ATF fluid for one hour before installing.

    CAUTION:

    Apply only light pressure (less than 10 N (3 lbs.) of force) to the clutch pack when measuring the clutch clearance with the feeler gauge. Applying excessive force to the clutch will give an incorrect reading and lead to a transmission failure.

  4. Insert and measure spring washer (4) and multiple-disc pack B3 (2, 6).
    1. Put multiple-discs for multiple-disc holding clutch B3 together in the sequence shown in the illustration and insert individually.
    2. Using a feeler gauge, determine the play "L" at three points between the snap ring (7) and outer multiple-disc (1). B3 clutch clearance should be 1.0-1.4 mm (0.039-0.055 in.). Adjust the clearance as necessary.
    3. Adjust with snap-ring (7), if necessary. Snap-rings are available in thicknesses of 3.2 mm (0.126 in.), 3.5 mm (0.138 in.), 3.8 mm (0.150 in.), 4.1 mm (0.162 in.), 4.4 mm (0.173 in.), and 4.7 mm (0.185 in.).
    GC0086154Courtesy of CHRYSLER GROUP, LLC
    1 - K1 CLUTCH FEED HOLE
  5. Check that the K1 clutch feed hole (1) in the inner hub of clutch B1 is free before installing clutch B1.
    GC0086155Courtesy of CHRYSLER GROUP, LLC
    1 - BOLTS - M6X32
    2 - CONVERTER HOUSING
    3 - INTERMEDIATE PLATE
    4 - BOLTS - M8X35
    5 - HOLDING CLUTCH B1
    6 - OIL PUMP
  6. Place intermediate plate (3) on converter housing (2) and align.
    NOTE:

    The intermediate plate can generally be used several times. The plate must not be coated with additional sealant

  7. Install the holding clutch B1 (5) onto the converter housing and intermediate plate. Installed position of clutch B1 in relation to converter housing is specified by a plain dowel pin in clutch B1 (arrow).
  8. Install the bolts to hold clutch B1 (5) to the converter housing.
  9. Securely tighten multiple-disc holding clutch B1 (5) on converter housing and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
    GC0086156Courtesy of CHRYSLER GROUP, LLC
    1 - INNER OIL SEAL
    2 - OUTER OIL SEAL
  10. Install new torque converter hub seal (1) into the oil pump using Seal Installer (special tool #8902A, Installer, Seal).
  11. Install new oil pump outer o-ring seal onto oil pump.
  12. Install oil pump (6) and securely tighten and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
    GC0086157Courtesy of CHRYSLER GROUP, LLC
    1 - DRIVING CLUTCH K1
    2 - SUN GEAR OF FRONT PLANETARY GEAR SET
    3 - DRIVING CLUTCH K3, OUTPUT SHAFT, AND CENTER AND REAR PLANETARY GEAR SETS
    4 - THRUST NEEDLE BEARING
    5 - THRUST WASHER
    6 - FRONT PLANETARY GEAR SET, DRIVING CLUTCH K2, AND INPUT SHAFT
    7 - SEALING RINGS
  13. Using grease, insert sealing rings (7) in the groove so that the joint remains together.
  14. Install the K1 (1) clutch onto the B1 clutch.
  15. Install input shaft with clutch K2 (6) and front gear set (1).
  16. Install front washer (5) and thrust needle bearing (4).
    NOTE:

    Insure that the pinion gears are fully seated in the Rear Annulus (Hollow) Gear. If 50% of the pinion gear splines protrude, the Rear Annulus Gear was installed upside down in the K2 Clutch Retainer.

  17. Install output shaft with center and rear gear set and clutch K3 (3).
    GC0086158Courtesy of CHRYSLER GROUP, LLC
    1 - GAUGE BAR 6311
    2 - PARK GEAR
  18. Using grease, install both Teflon rings in the groove at the rear of the output shaft so that the joint stays together.
  19. Mount transmission housing on converter housing.
  20. Screw in Torx socket bolts through the transmission housing into the converter housing and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
    NOTE:

    Verify that there are no nicks or other irregularities in the surface of the transmission case that will cause an inaccurate measurement.

  21. Measure end-play between park pawl gear and grooved ball bearing in order to select the proper geartrain end-play shim.
  22. Place Gauge Bar (special tool #6311, Gauge Bar) (1) on transmission housing. Using a depth gauge, measure from the gauge bar (1) to the parking lock gear (2).
    GC0086159Courtesy of CHRYSLER GROUP, LLC
    1 - GAUGE BAR 6311
    2 - OUTPUT SHAFT BEARING CONTACT SURFACE
  23. Using a depth gauge, measure from the Gauge Bar (special tool #6311, Gauge Bar) (1) to the contact surface of the output shaft bearing (2) in the transmission housing.
  24. Subtract the first figure from the second figure to determine the current end-play of the transmission. Select a shim or a combination of two shims such that the end-play will be 0.3-0.5 mm (0.012-0.020 in.). Shims are available in thicknesses of 0.2 mm (0.008 in.), 0.3 mm (0.012 in.), 0.4 mm (0.016 in.), and 0.5 mm (0.020 in.).
  25. Install the selected end-play shim.
    GC0086160Courtesy of CHRYSLER GROUP, LLC
    1 - BEARING INSTALLER 9287
    2 - BEARING
    3 - TRANSMISSION CASE
  26. Screw in Torx socket bolts through the converter housing into the transmission housing and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
  27. Install output shaft bearing (2) in rear transmission housing. Using Bearing Installer (special tool #9287, Installer, Bearing) (1), install the output shaft bearing (2) into the transmission housing. The closed side of the plastic cage must point towards the parking lock gear. 
    GC0086161Courtesy of CHRYSLER GROUP, LLC
    1 - RETAINING RING
    2 - OUTPUT SHAFT BEARING
  28. Install the retaining ring (1). Ensure that the retaining ring is seated correctly in the groove.
  29. Check that there is no play between the bearing and the retaining ring using feeler gauge.
  30. There must be no play between the retaining ring and the bearing. If the ring cannot be installed, a thinner ring must be used. If there is play between the ring and the bearing, a thicker ring must be installed. Retaining rings are available in thicknesses of 2.0 mm (0.079 in.), 2.1 mm (0.083 in.), and 2.2 mm (0.087 in.).
    GC0086162Courtesy of CHRYSLER GROUP, LLC
    1 - TOOL 8266-8
    2 - TOOL 8266-18
    3 - TOOL C-3339A
  31. Rotate the transmission so that the bellhousing is pointed upward and ensuring that the output shaft is allowed to move freely.
  32. Measure input shaft end-play.
    NOTE:

    If end-play is incorrect, transmission is incorrectly assembled, or the geartrain end-play shim is incorrect. The geartrain end-play shim is selective.

    NOTE:

    If necessary, a combination of shims can be used to achieve the required end-play.

    1. Attach Adapter (special tool #8266-18, Spline Tool, NAG1) (2) to Handle (special tool #8266-8, Handle) (1).
    2. Attach dial indicator C-3339A (3) to Handle (special tool #8266-8, Handle) (1).
    3. Install the assembled tool onto the input shaft of the transmission and tighten the retaining screw on Adapter (special tool #8266-18, Spline Tool, NAG1) to secure it to the input shaft.
    4. Position the dial indicator plunger against a flat spot on the oil pump and zero the dial indicator.
    5. Move input shaft in and out and record reading. End play should be 0.3-0.5 mm (0.012-0.020 in.). Adjust as necessary.
    GC0086163Courtesy of CHRYSLER GROUP, LLC
    1 - SEAL INSTALLER 8902A
    2 - TRANSMISSION CASE
    NOTE:

    The output shaft shim should be 0.3 mm (0.012 in.). If a 0.3 mm (0.012 in.) shim is not available, use a 0.2 mm (0.008 in.) 0.4 mm (0.016 in.) or 0.5 mm (.020 in.) shim.

  33. Install the output shaft shim onto the output shaft.
  34. Install a new transmission rear seal into the transmission case with Seal Installer (special tool #8902A, Installer, Seal) (1).
    GC0086164Courtesy of CHRYSLER GROUP, LLC
    1 - PROPELLER SHAFT FLANGE
    2 - STAKING TOOL 9078
    3 - ALIGNMENT PIN
    4 - OUTPUT SHAFT NOTCH
  35. Place the transmission in PARK to prepare for the installation of the output shaft nut.
  36. Inspect the seal protector on the rear of the output shaft flange. Replace the seal protector if damaged. the seal protector can be removed using a suitable pry tool and installed with a suitable tube style tool.
  37. Install the propeller shaft flange onto the output shaft and install a new flange nut. Tighten the flange nut, with a 30 mm 12 point socket, to the proper. Refer to TECHNICAL SPECIFICATIONS .
  38. Place the Staking Tool (special tool #9078, Staking Tool) (2) and Driver Handle (special tool #C-4171, Driver Handle, Universal) onto the output shaft.
  39. Rotate the Staking Tool (special tool #9078, Staking Tool) (2) until the alignment pin (3) engages the output shaft notch (4).
    GC0086165Courtesy of CHRYSLER GROUP, LLC
    1 - STAKING TOOL 9078
    2 - PROPELLER FLANGE
    3 - STAKING PIN
  40. Press downward on the staking tool (1) until the staking pin (3) contacts the output shaft nut flange (2).
  41. Strike the Driver handle (special tool #C-4171, Driver Handle, Universal) with a suitable hammer until the output shaft nut is securely staked to the output shaft.
    GC0086166Courtesy of CHRYSLER GROUP, LLC
    1 - HEAT SHIELD
    2 - ELECTROHYDRAULIC UNIT
    3 - BOLT
    4 - OIL FILTER
    5 - OIL PAN
    6 - CLAMPING ELEMENT
    7 - BOLT
    8 - 13-PIN PLUG CONNECTOR
    9 - BOLT
    10 - ADAPTER PLUG
  42. Install electrohydraulic unit (2) and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
  43. Install oil filter (4).
  44. Install oil pan (5) and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
  45. Install the adapter plug (10) and tighten to the proper. Refer to TECHNICAL SPECIFICATIONS .
    GC0086167Courtesy of CHRYSLER GROUP, LLC
    1 - TORQUE CONVERTER
    2 - CONVERTER HOUSING
  46. Install the torque converter.
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