Subaru 2009 IMPREZA, Service Manual

Page: 1951 / 3619

4AT-95
Drive Pinion Shaft Assembly
AUTOMATIC TRANSMISSION
8) Measure the dimension “B” of the drive pinion
shaft.
ST
398643600 GAUGE
9) Calculate the thickness “t” mm (in) of the drive
pinion shim.
t = 6.5
r
0.0625 (0.256
r
0.0025) – (B – A)
10) Select three or less shims from following table.
E: INSPECTION
• Make sure that all component parts are free of
scratches, holes and other faults.
• Adjust the tooth alignment. <Ref. to 4AT-95, AD-
JUSTMENT, Drive Pinion Shaft Assembly.>
F: ADJUSTMENT
1) Remove the liquid gasket from the mating sur-
face completely.
2) Install the oil pump housing assembly to the con-
verter case, and secure them by tightening the four
bolts evenly.
NOTE:
Use an old gasket or aluminum washer to prevent
damaging the mating surface of the housing.
Tightening torque:
41 N·m (4.2 kgf-m, 30.2 ft-lb)
3) Rotate the drive pinion a few times using ST1
and ST2.
ST1
498937110 HOLDER
ST2 499787700 WRENCH
4) Adjust the drive pinion and hypoid driven gear
backlash. <Ref. to 4AT-102, ADJUSTMENT, Front
Differential Assembly.>
B Measured value
Drive pinion shim
Part No. Thickness mm (in)
31451AA050 0.150 (0.0059)
31451AA060 0.175 (0.0069)
31451AA070 0.200 (0.0079)
31451AA080 0.225 (0.0089)
31451AA090 0.250 (0.0098)
31451AA100 0.275 (0.0108)
AT-00204
B
AT-00205
AT-00206
ST2
ST1