Toyota Automatic Transmission A340 Series. Repair Manual — part 30
AT1867
AT4669
AT1867
AT1931
SST
1.2 − 1.8 mm
AT7979
SST
3.
REMOVE FRONT DRIVE SHAFT BEARING
Using SST and a press, press out the bearing.
SST
09608−12010 (09608−00020, 09608−00040)
4.
REMOVE OIL STRAINER
Remove the four bolts and strainer from the chain rear
case.
ASSEMBLY OF TRANSFER CHAIN REAR CASE
1.
INSTALL OIL STRAINER
(a)
Apply sealant to 2 or 3 threads of the bolt end.
Sealant:
Part No. 08833 − 00070, THREE BOND
1324 or equivalent
(b)
Install the oil strainer with the four bolts.
Torque: 70 kg−cm (61 in.−lb, 6.9 N−m)
2.
INSTALL FRONT DRIVE SHAFT BEARING
Using SST, press in the bearing.
SST
09608−12010 (09608−00020, 09608−00040)
Bearing depth: 1.2 − 1.8 mm (0.047 − 0.071 in.)
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Chain Rear Case)
AT−229
AT3302
11.0 − 11.3 mm
SST
0 − +0.3 mm
AT3301
3.
INSTALL FRONT OUTPUT SHAFT BEARING
(a)
Install the bearing to the transfer chain rear case.
(b)
Using snap ring pliers, install the snap ring.
4.
INSTALL FRONT OUTPUT SHAFT OIL SEALS
(a)
Using SST and a hammer, drive in a new rear oil
seal.
SST
09608−32010 and 09608−35014 (09608−06020)
Oil seal depth: 11.0 − 11.3 mm (0.433 − 0.445 in.)
(b)
Using SST and a hammer, drive in a new front oil
seal.
SST
09608−32010 and 09608−35014 (09608−06020)
Oil seal depth: 0 − +0.3 mm (0 − +0.012 in.)
(c)
Coat the oil seal lips with MP grease.
AT−230
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Chain Rear Case)
AT8012
: Specified torque
kg−cm (ft−lb, N−m)
100 (7, 10)
Pressure Relief Valve
Spring
Oil Pump Body
Drive Gear
Driven Gear
Plate
Oil Pump Cover
AT1863
AT7980
Transfer Oil Pump
COMPONENTS
DISASSEMBLY OF TRANSFER OIL PUMP
DISASSEMBLE TRANSFER OIL PUMP ASSEMBLY
(a)
Remove the three bolts, oil pump body and plate
from the oil pump cover.
(b)
Remove the pressure relief valve and spring.
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Oil Pump)
AT−231
AT1868
AT1869
AT1870
AT1864
AT1864
(c)
Remove the drive gear and driven gear.
INSPECTION OF TRANSFER OIL PUMP
1.
CHECK BODY CLEARANCE OF DRIVEN GEAR
Push the driven gear to one side of the body. Using a
feeler gauge, measure the clearance.
Standard body clearance: 0.07 − 0.15 mm
(0.0028 − 0.0059 in.)
Maximum body clearance: 0.3 mm (0.012 in.)
If the body clearance is greater than the maximum, re-
place the drive gear, driven gear or pump body.
2.
CHECK TIP CLEARANCE OF DRIVEN GEAR
Measure between the driven gear teeth and the crescent−
shaped part of the pump body.
Standard tip clearance:
0.15 − 0.42 mm
(0.0059 − 0.0165 in.)
Maximum tip clearance:
0.6 mm (0.024 in.)
If the tip clearance is greater than the maximum, replace
the drive gear, driven gear or pump body.
3.
CHECK SIDE CLEARANCE OF BOTH GEARS
Using a steel straight edge and a feeler gauge, measure
the side clearance of both gears.
Standard side clearance:
0.04 − 0.15 mm
(0.0016 − 0.0059 in.)
Maximum side clearance: 0.3 mm (0.012 in.)
If the side clearance is greater than the maximum, re-
place the drive gear, driven gear or pump body.
ASSEMBLY OF TRANSFER OIL PUMP
ASSEMBLE TRANSFER OIL PUMP ASSEMBLY
(a)
Coat the driven gear and drive gear with ATF.
(b)
Install the driven gear and drive gear.
AT−232
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Oil Pump)
AT1863
AT7980
(c)
Install the pressure relief valve and spring.
(d)
Install the plate and oil pump body, and torque the
three bolts.
Torque: 100 kg−cm (7 ft−lb, 10 N−m)
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Oil Pump)
AT−233
AT1440
SST
AT1443
SST
2.7 − 3.3 mm
AT4931
♦ Non−reusable part
Extension Housing
♦ Oil Seal
Transfer Extension Housing
COMPONENTS
INSPECTION OF TRANSFER EXTENSION
HOUSING
HINT: If the bearing is worn, replace the extension
housing assembly.
IF NECESSARY, REPLACE OIL SEAL
(a)
Using SST, remove the oil seal.
SST
09308−00010
(b)
Using SST and a press, install a new oil seal to
the extension housing.
SST
09608−35014 (09608−06020, 09608−06100)
Oil seal depth: 2.7 − 3.3 mm (0.106 − 0.130 in.)
(c)
Coat the oil seal lip with MP grease.
AT−234
−
AUTOMATIC TRANSMISSION (A340H)
Component Parts (Transfer Extension Housing)
AT3303
INSTALLATION OF COMPONENT PARTS (A340H)
(See pages AT−168 to 171)
Disassembly, inspection and assembly of each component group have been indicated in the preced-
ing chapter. Before assembly, make sure again that all component groups are assembled correctly.
If something wrong is found in a certain component group during assembly, inspect and repair this
group immediately.
Recommended ATF: DEXRONR II
GENERAL NOTES:
1.
The automatic transmission is composed of highly precision−finished parts, necessitating
careful inspection before assembly because even a small nick could cause fluid leakage or
affect performance.
2.
Before assembling new clutch discs, soak them in automatic transmission fluid for at least
fifteen minutes.
3.
Apply automatic transmission fluid on sliding or rotating surfaces of parts before assembly.
4.
Use petroleum jelly to keep small parts in their place.
5.
Do not use adhesive cements on gaskets and similar parts.
6.
When assembling the transmission, be sure to use new gaskets and O−rings.
7.
Dry all parts with compressed air − never use shop rags.
8.
When working with FIPG material, you must observe the following.
S
Using a razor blade and gasket scraper, remove all the old packing (FIPG) material
from the gasket surfaces.
S
Thoroughly clean all components to remove all the loose material.
S
Clean both sealing surfaces with a non−residue solvent.
S
Parts must be assembled within 10 minutes of application. Otherwise, the packing
(FIPG) material must be removed and reapplied.
9.
There are 2 types of seal packing on the A340H transmission. There are not interchangeable
and care should be taken in selecting them.
A: Part No. 08826 − 00090, THREE BOND 1281 or equivalent
B: Part No. 08833 − 00090, THREE BOND 1131, LOCTITE 518 or equivalent
−
AUTOMATIC TRANSMISSION (A340H)
Installation of Component Parts
AT−235
AT6331
mm (in.)
* Assembled type bearing and race
(TRANSMISSION)
Front Bearing Race
Thrust Bearing
Rear Bearing Race
Inner Diameter
Outer Diameter
Inner Diameter
Outer Diameter
Inner Diameter
Outer Diameter
28.1 (1.106)
47.3 (1.862)
28.9 (1.138)
50.2 (1.976)
27.1 (1.067)
41.8 (1.646)
26.0 (1.024)
46.8 (1.843)
24.2 (0.953)
47.8 (1.882)
37.1 (1.461)
59.0 (2.323)
33.6 (1.323)
50.3 (1.980)
36.8 (1.449)
50.9 (2.004)
33.7 (1.327)
47.6 (1.874)
26.0 (1.024)
48.9 (1.925)
26.0 (1.024)
46.7 (1.839)
26.8 (1.055)
47.0 (1.850)
30.6 (1.205)
53.6 (2.110)
32.6 (1.283)
47.7 (1.878)
34.3 (1.350)
47.8 (1.882)
33.7 (1.327)
47.6 (1.874)
35.5 (1.398)
47.7 (1.878)
28.8 (1.134)
44.8 (1.764)
30.1 (1.185)
44.7 (1.760)
27.8 (1.094)
44.8 (1.764)
39.2 (1.543)
57.7 (2.272)
INSTALLATION POSITION AND DIRECTION OF BEARINGS AND RACES
AT−236
−
AUTOMATIC TRANSMISSION (A340H)
Installation of Component Parts
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