Subaru Legacy BN/BS (2015-2019) Service Manual: Assembly
1. Install the plug to drive pinion retainer. NOTE: • Use new O-rings. • Apply CVTF to the O-rings. Tightening torque: 22 N·m (2.2 kgf-m, 16.2 ft-lb)
2. Using the ST, install the oil seal to drive pinion retainer. NOTE: • Apply CVTF to the oil seal press-fitting surface and lip. • Install the oil seal in the correct direction.
3. Select the drive pinion washer. (1) Measure the roller bearing inner race width “A” on the front side.
(2) Measure the roller bearing inner race width “B” on the rear side.
(3) Measure the spacer width “C”.
(4) Using the ST, install the front roller bearing outer race to the drive pinion retainer.
(5) Using the ST, install the rear roller bearing outer race to the drive pinion retainer.
(6) Place the drive pinion retainer on the surface plate, and install the inner race to the rear roller bearing outer race. NOTE: Place the drive pinion retainer so that the mating surface of the drive pinion retainer (mating surface with the converter case) contacts the surface plate. (7) Measure the height “D” from the end face of the rear roller bearing inner race to the surface plate.
(8) Install the inner race to the front roller bearing outer race. (9) Measure the depth “E” from the end face of the front roller bearing inner race to the end face of the ST.
(10) Using following formula, select one to three drive pinion washers. T (mm) = D − (A + B + C + E − 15) − (0±0.0125) [T (in) = D − (A + B + C + E − 0.591) − (0±0.0005)] A: Front roller bearing width B: Rear roller bearing width C: Spacer width D: Height from end face of rear roller bearing inner race to surface plate E: Depth from end face of front roller bearing inner race to end face of ST 15 mm (0.591 in): Thickness of ST T: Drive pinion washer thickness 0±0.0125 mm (0±0.0005 in): Clearance
4. Measure and record the drive pinion shim thickness to be reused. 5. Install the drive pinion shim that is reused for the drive pinion shaft. 6. Using the ST1 and ST2, press-fit the inner race to the drive pinion shaft.
7. Install the drive pinion spacer. NOTE: Replace the O-ring with a new part after tooth contact inspection.
8. Install the selected drive pinion washer.
9. Insert the drive pinion shaft into the drive pinion retainer. CAUTION: Be careful not to damage the oil seal. 10. Install the inner bearing and lock nut. NOTE: Use a new lock nut.
11. Using the ST, tighten the lock nut to the specified torque so that the starting torque of the drive pinion shaft is within the specified range. CAUTION: Before inspecting the starting torque, apply differential gear oil to roller of bearing and rotate the bearing several times. NOTE: • Tighten the lock nut while directly aligning ST2 and torque wrench. • If the starting torque is not within the specified range, select the drive pinion washer, and repeat the step until the starting torque is within the specified range. • When a thicker drive pinion washer is selected, the starting torque decreases. When a thinner drive pinion washer is selected, the starting torque increases. Starting torque: 5.1 — 17.1 N (0.5 — 1.7 kgf, 1.1 — 3.8 lbf)
Using the following formula, calculate the tightening torque for a torque wrench. T2 = L2/(L1 + L2) - T1 T1: 170 — 250 N·m (17.3 — 25.5 kgf-m, 125.4 — 184.4 ft-lb) [Specified tightening torque range] T2: Tightening torque L1: ST1 length 0.072 m (2.83 in) L2: Torque wrench length Example:
12. Install the drive pinion retainer to the converter case, and check the backlash and tooth contact. Drive Pinion Shaft Assembly > ADJUSTMENT Front Differential Assembly > ADJUSTMENT 13. Remove the drive pinion retainer from converter case. Drive Pinion Shaft Assembly > REMOVAL 14. Remove the drive pinion spacer from the drive pinion shaft. Drive Pinion Shaft Assembly > DISASSEMBLY 15. Install the O-ring to the drive pinion shaft. NOTE: • Use new O-rings. • Apply CVTF to the O-rings.
16. Install the drive pinion spacer to the drive pinion shaft.
17. Install the drive pinion washer.
18. Insert the drive pinion shaft into the drive pinion retainer. CAUTION: Be careful not to damage the oil seal.
19. Install the inner bearing and lock nut.
20. Using the ST, tighten the lock nut to the specified torque so that the starting torque of the drive pinion shaft is within the specified range. CAUTION: Before inspecting the starting torque, apply differential gear oil to roller of bearing and rotate the bearing several times. NOTE: • Tighten the lock nut while directly aligning ST2 and torque wrench. • If the starting torque is not within the specified range, select the drive pinion washer, and repeat the step until the starting torque is within the specified range. • When a thicker drive pinion washer is selected, the starting torque decreases. When a thinner drive pinion washer is selected, the starting torque increases. Starting torque: 5.1 — 17.1 N (0.5 — 1.7 kgf, 1.1 — 3.8 lbf)
Using the following formula, calculate the tightening torque for a torque wrench. T2 = L2/(L1 + L2) - T1 T1: 170 — 250 N·m (17.3 — 25.5 kgf-m, 125.4 — 184.4 ft-lb) [Specified tightening torque range] T2: Tightening torque L1: ST1 length 0.072 m (2.83 in) L2: Torque wrench length Example:
21. Crimp the lock nut in 2 locations. 22. Using the ST, install the plug.
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Disassembly
1. Flatten the tab of the lock nut.2. Using ST1, ST2 and ST3, fix at the spline portion of drive pinion shaft to remove the lock nut.ST1 499787500ADAPTERST2 499787700WRENCHST3 498937110HOLDER ...
Drive plate
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Other materials:
Removal
CAUTION:If the engine oil is spilt over exhaust pipe or the under cover, wipe it off with cloth to avoid emission of smoke or causing a fire.1. Drain the engine oil. Engine Oil > REPLACEMENT2. Remove the service hole cover (A) of the under cover.3. Remove the oil filter using ST.ST 498547000OIL ...
