STANDARD PROCEDURE - ALUMINUM
THREAD REPAIR
Damaged or worn threads in the aluminum trans-
mission case and valve body can be repaired by the
use of Heli-Coils™, or equivalent. This repair con-
sists of drilling out the worn-out damaged threads.
Then tap the hole with a special Heli-Coil™ tap, or
equivalent, and installing a Heli-Coil™ insert, or
equivalent, into the hole. This brings the hole back to
its original thread size.
Heli-Coil™, or equivalent, tools and inserts are
readily available from most automotive parts suppli-
ers.
REMOVAL
(1) Disconnect the negative (ground) battery cable.
CAUTION: Isolate ground lead to prevent accidental
contact.
(2) Apply parking brake.
(3) Move gear selector lever to position 9N9.
(4) Remove oil drain plug (2) (Fig. 20) and drain
automatic transmission oil into a clean container.
(5) Remove oil filler pipe.
(a) Remove bolts (2) (Fig. 21) to cylinder head.
(b) Remove bolt (3) (Fig. 21) to transmission
flange and bolt (2) to transmission housing.
(c) Pull lower connection of oil filler pipe (1) (Fig.
21) out of the fill hole in the side of the transmis-
sion housing.
(d) Guide oil filler pipe (1) (Fig. 21) up and out.
(6) Remove exhaust heat shield (5) (Fig. 22).
(7) Remove retaining bracket (4) (Fig. 22).
(8) Detach propeller shaft (1) (Fig. 22) at transmis-
sion (Refer to 3 - DIFFERENTIAL & DRIVELINE/
PROPELLER SHAFT/PROPELLER SHAFT -
REMOVAL). Move propeller shaft to the right and tie
up.
(9) Remove the cooler lines at transmission.
Fig. 20 Drain Transmission
1 - SEAL
2 - DRAIN PLUG
Fig. 21 Remove the Fill Tube
1 - FILL TUBE
2 - BOLTS TO CYLINDER HEAD AND TRANSMISSION HOUSING
3 - BOLT TO TRANSMISSION FLANGE
Fig. 22 Remove Propeller Shaft and Heat Shield
1 - PROPELLER SHAFT
2 - BOLT
3 - BOLT
4 - RETAINING BRACKET
5 - HEAT SHIELD
6 - WASHER
7 - BOLT
VA AUTOMATIC TRANSMISSION - NAG1 21 - 27
AUTOMATIC TRANSMISSION - NAG1 (Continued)
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