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Automatic Transaxle Overhaul & Testing - 4T80-E: Specifications Oldsmobile Aurora II

TORQUE CONVERTER

A visual inspection of torque converter may reveal converter is Blue from overheating. Stator roller clutch can be checked by inserting 2 fingers into splined inner race of roller clutch and attempting to turn race in both directions. Inner race should turn freely clockwise, but should not turn or should be difficult to turn counterclockwise.

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Case Cover-To-Case Bolt/Stud
10-mm15-20 (20-27)
13-mm20-23 (27-31)
Case Cover-To-Driven Sprocket Support Bolt15-20 (20-27)
Case Extension-To-Case Bolt
10-mm15-20 (20-27)
13-mm37-40 (50-54)
Case Extension-To-Case Stud37-40 (50-54)
Case-To-Forward Clutch Support Stud19-20 (26-27)
Coast & Forward Clutch Support Stud19 (26)
Cooler Connector To Cooler (Case)15-20 (20-27)
Final Drive-To-Differential Bolt52-56 (71-76)
Flexplate Bolt62 (84)
Manual Shaft-To-Detent Lever Nut20-25 (27-34)
Oil Test Plug14 (19)
Return Cooler Connector19-21 (26-29)
Side Oil Pan-To-Case Cover Bolt
13-mm15-20 (20-27)
15-mm37-40 (50-54)
Side Oil Pan-To-Case Stud37-40 (50-54)
INCH Lbs. (N.m)
Accumulator Housing Cover Bolt71-124 (8-14)
Accumulator Housing-To-Channel Plate Bolt71-124 (8-14)
Channel Plate-To-Accumulator Housing Bolt71-124 (8-14)
Channel Plate-To-Case Bolt71-124 (8-14)
Channel Plate-To-Case Nut71-124 (8-14)
Detent Lever & Roller Assembly Bolt71-124 (8-14)
Drive Sprocket Support-To-Case Bolt97-115 (11-13)
Input Speed Sensor Bolt97-115 (11-13)
Lower Control Valve Body-To-Channel Plate Bolt71-124 (8-14)
Lower Oil Pan Bolt (1)89-106 (10-12)
Oil Drain And Filler Plug71-124 (8-14)
Oil Transfer Plate Bolt106 (12)
Pump Assembly-To-Case Bolt97-115 (11-13)
Pump Assembly-To-Case Cover Bolt97-115 (11-13)
Scavenge Pump Cover-To-Body Bolt97-115 (11-13)
Scavenge Tube-To-Case Bolt71-124 (8-14)
Secondary Pump-To-Case Bolt97-115 (11-13)
Secondary Pump-To-Case Cover Bolt97-115 (11-13)
Servo Cover-To-Case Bolt71-124 (8-14)
Spacer Plate Support-To-Channel Plate Bolt71-124 (8-14)
Speed Sensor-To-Case Extension Bolt71-124 (8-14)
Temperature Sensor30 (3.4)
Upper Control Valve Body Bolt97-115 (11-13)
Upper Control Valve Body-To-Case Cover Bolt97-115 (11-13)
Upper Control Valve Body-To-Driven Sprocket Support Bolt97-115 (11-13)
(1) Tighten in sequence. (Схема №39)
(1)Tighten in sequence. (Схема №39)

TORQUE SPECIFICATIONS

TRANSAXLE SPECIFICATIONS

ApplicationEnd Play - In. (mm)
Final Drive.006-.026 (.15-.65)
Final Drive Carrier Pinion Gears.008-.012 (.20-.30)
Input Carrier Pinion Gear.003-.035 (.08-.89)
Input Shaft.004-.033 (.10-.85)
Reaction Carrier Pinion Gear.004-.035 (.10-.89)

TRANSAXLE SPECIFICATIONS