TM 9-2320-280-34
17-29. OIL PUMP ASSEMBLY REPAIR (4L80-E) (Cont'd)
d. Assembly
CAUTION
All transmission parts must be lubricated with clean transmission
fluid (Dexron III) before assembly. Foreign material will cause
transmission damage.
1.
Install plug (8), spring pin (7), regulator valve (11), two springs (12), spring retainer (13), reverse
boost valve (14), and bushing (15) in cover (10) with snapring (16).
2.
Install converter limit valve (23), spring (2), and plug (1) in cover (10) with spring pin (22).
3.
Install converter enable valve (5) and spring (4) in cover (10). Compress spring (4) and install
spring retainer (3).
4.
Install plug (6), spring pin (21), spring (20), converter clutch valve (19), and plug (18) in cover (10)
with snapring (17).
5.
Install drive gear (25) and driven gear (24), with marked surfaces facing up, in oil pump body (26).
NOTE
Align reference marks on cover and pump body.
Vent shield is used on 1997-1998 transmissions only.
6.
Install cover (10) and vent shield (29.1) on pump body (26) with five capscrews (29). Tighten
capscrews (29) to 18 lb-ft (24 Nm).
7.
Coat seal (27) with petrolatum and install on pump body (26).
8.
Coat selective thrust washer (9) with petrolatum and install on cover (10).
NOTE
Use small chamfer end of seal installer to install inner seal ring.
9.
Using seal installer, pusher, and sizer, install O-ring (30) in pump cover (10) groove.
10.
Using seal installer, pusher, and sizer, install O-ring (31) in pump cover (10) groove.
11.
Using oil pump seal installer, install plain seal (28) on pump body (26).
12.
Install seal (28.1) on pump body (26).
13.
Install gasket (27.1) on pump body (26).
14.
Install seven screws (28.2) in pump body (26).
17-128
Change 2
