Automatic Transmission Assembly Installation
Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
INSTALL TRANSMISSION CONTROL CABLE
BRACKET
INSPECT TORQUE CONVERTER ASSEMBLY
INSTALL TORQUE CONVERTER ASSEMBLY
INSTALL AUTOMATIC TRANSMISSION ASSEMBLY
INSTALL MANIFOLD STAY
INSTALL DRIVE PLATE AND TORQUE CONVERTER SETTING BOLT
CONNECT WIRE HARNESS AND CONNECTOR
INSTALL REAR NO. 1 ENGINE MOUNTING INSULATOR
INSTALL NO. 3 FRAME CROSSMEMBER SUB-ASSEMBLY
INSTALL STARTER ASSEMBLY
CONNECT TRANSMISSION CONTROL CABLE ASSEMBLY
CONNECT OIL COOLER TUBE
INSTALL TRANSMISSION OIL FILLER TUBE SUB-ASSEMBLY
INSTALL PROPELLER SHAFT ASSEMBLY
INSTALL FRONT EXHAUST PIPE ASSEMBLY
ADD AUTOMATIC TRANSMISSION FLUID
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
INSPECT SHIFT LEVER POSITION
ADJUST SHIFT LEVER POSITION
CHECK FOR EXHAUST GAS LEAK
INSPECT AUTOMATIC TRANSMISSION FLUID
INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY
INSTALL NO. 1 ENGINE UNDER COVER
Automatic Transmission Assembly -- Installation |
1. INSTALL TRANSMISSION CONTROL CABLE
BRACKET |
Install the transmission control cable bracket with the 2 bolts.
- Torque:
- 28 N*m{286 kgf*cm, 21 ft.*lbf}
2. INSPECT TORQUE CONVERTER ASSEMBLY |
(HILUX_TGN26 RM0000010NN01PX.html)
3. INSTALL TORQUE CONVERTER ASSEMBLY |
Engage the spline of the input shaft turbine runner.
Engage the spline of the stator shaft and the stator while turning the torque converter assembly.
- HINT:
- If the stator shaft spline are difficult to engage with the stator splines, move the torque converter back approximately 10 mm (0.394 in.) and engage the splines while rotating the torque converter.
Turn the torque converter assembly to insert the key of the oil pump drive gear into the groove of the torque converter assembly.
Clean the torque converter set bolt holes.
Using a vernier caliper and straightedge, measure dimension A between the transaxle contact surface of the engine and the torque converter contact surface of the drive plate.
- NOTICE:
- Make sure to deduct the thickness of the straightedge.
Using a vernier caliper and straightedge, measure dimension B shown in the illustration and check that dimension B is more than dimension A, which was measured in the previous step.
- Standard:
- B = A + 1.00 mm (0.0394 in.) or more
- NOTICE:
- Make sure to deduct the thickness of the straightedge.
- If the transaxle is installed to the engine with the torque converter not sufficiently inserted, the torque converter may be damaged.
4. INSTALL AUTOMATIC TRANSMISSION ASSEMBLY |
Apply clutch spline grease to the surface of the crankshaft that contacts the torque converter centerpiece.
- Clutch spline grease:
- Toyota Genuine Clutch Spline Grease or equivalent
- Maximum grease amount:
- Approximately 1 g (0.0353 oz.)
Text in Illustration*1
| Torque Converter Centerpiece
|
*2
| Crankshaft
|
While keeping the engine and automatic transmission assembly horizontal, align the knock pins with the holes in the automatic transmission assembly and install the 7 bolts shown in the illustration.
- Torque:
- for bolt A:
- 71 N*m{724 kgf*cm, 52 ft.*lbf}
- for bolt B:
- 37 N*m{377 kgf*cm, 27 ft.*lbf}
- NOTICE:
- Confirm that the 2 knock pins are installed to the engine cylinder block before installing the transmission.
- Do not use excessive force to pry on the transmission assembly.
- Insert the knock pins into the knock pin holes securely so that the end face of the transmission assembly fits close against the engine assembly before tightening the bolts.
- Check that the torque converter rotates.
for Manual Transmission:
Install the manifold stay with the 3 bolts.
- Torque:
- for bolt A:
- 72 N*m{729 kgf*cm, 53 ft.*lbf}
- for bolt B:
- 44 N*m{449 kgf*cm, 32 ft.*lbf}
- for bolt C:
- 30 N*m{306 kgf*cm, 22 ft.*lbf}
Text in Illustration
| Bolt A
|

| Bolt B
|

| Bolt C
|
for Automatic Transmission:
Install the manifold stay with the 3 bolts.
- Torque:
- for bolt A:
- 71 N*m{724 kgf*cm, 52 ft.*lbf}
- for bolt B:
- 44 N*m{449 kgf*cm, 32 ft.*lbf}
- for bolt C:
- 30 N*m{306 kgf*cm, 22 ft.*lbf}
Text in Illustration
| Bolt A
|

| Bolt B
|

| Bolt C
|
6. INSTALL DRIVE PLATE AND TORQUE CONVERTER SETTING BOLT |
Turn the crankshaft to gain access to the installation locations of the 6 torque converter setting bolts and install each bolt while holding the crankshaft pulley bolt with a wrench.
- Torque:
- 41 N*m{418 kgf*cm, 30 ft.*lbf}
- NOTICE:
- Install the black bolt first, and then the 5 silver bolts.
Install the flywheel housing dust seal.
7. CONNECT WIRE HARNESS AND CONNECTOR |
Connect the park/neutral position switch connector, transmission wire connector, ATF temperature sensor connector and 3 speed sensor connectors.
Attach the 4 harness clamps.
Install the heat insulator with the 2 bolts to the park/neutral position switch.
- Torque:
- 7.5 N*m{76 kgf*cm, 66 in.*lbf}
Tilt up the transmission.
8. INSTALL REAR NO. 1 ENGINE MOUNTING INSULATOR |
Install the engine mounting insulator and ground cable to the transmission with the 4 bolts.
- Torque:
- 47 N*m{479 kgf*cm, 35 ft.*lbf}
Text in Illustration*1
| Ground Cable
|
*a
| Front
|
*b
| Upper
|
- HINT:
- The acceptable installation angle of the ground cable is within 30° upward or downward from the horizontal position.
9. INSTALL NO. 3 FRAME CROSSMEMBER SUB-ASSEMBLY |
Install the No. 3 frame crossmember to the rear engine mounting insulator with the 4 bolts.
- Torque:
- 27 N*m{275 kgf*cm, 20 ft.*lbf}
Install the frame crossmember with the 4 bolts and 4 nuts.
- Torque:
- 50 N*m{510 kgf*cm, 37 ft.*lbf}
Connect the wire harness clamp to the No. 3 frame crossmember.
10. INSTALL STARTER ASSEMBLY |
(HILUX_TGN26 RM000000SGZ01DX.html)
11. CONNECT TRANSMISSION CONTROL CABLE ASSEMBLY |
Connect the control cable with a new clip.
Connect the control cable with the nut.
- Torque:
- 14 N*m{143 kgf*cm, 10 ft.*lbf}
12. CONNECT OIL COOLER TUBE |
Temporarily install the ends of the oil cooler tubes to the oil cooler tube unions by hand.
Close the 3 No. 2 oil cooler hose clamps and install the 3 bolts.
- Torque:
- for bolt A:
- 5.0 N*m{51 kgf*cm, 44 in.*lbf}
- for bolt B:
- 12 N*m{122 kgf*cm, 9 ft.*lbf}
Using a union nut wrench, tighten the inlet and outlet tubes.
- Torque:
- 34 N*m{350 kgf*cm, 25 ft.*lbf}
- NOTICE:
- Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench (HILUX_TGN26 RM000004QR1006X.html).
13. INSTALL TRANSMISSION OIL FILLER TUBE SUB-ASSEMBLY |
Coat a new O-ring with ATF and install it to the transmission oil filler tube.
Install the transmission oil filler tube with the 2 bolts.
- Torque:
- 12 N*m{122 kgf*cm, 9 ft.*lbf}
Install the transmission oil level dipstick.
14. INSTALL PROPELLER SHAFT ASSEMBLY |
(HILUX_TGN26 RM000000ZZ101UX.html)
15. INSTALL FRONT EXHAUST PIPE ASSEMBLY |
Using a vernier caliper, measure the free length of the compression spring.
- Minimum length:
- 40 mm (1.57 in.)
If the free length is less than the minimum, replace the compression spring.
Install the front exhaust pipe to the exhaust pipe support.
Using a plastic-faced hammer and wooden block, tap on a new gasket until its surface is flush with the exhaust manifold.
Text in Illustration*1
| Gasket
|
*2
| Wooden Block
|
- NOTICE:
- Be sure to install the gasket so that it faces the correct direction.
- Do not reuse the gasket.
- Do not damage the gasket.
- When connecting the exhaust pipe, do not push in the gasket with the exhaust pipe.
Connect the front exhaust pipe to the exhaust manifold with the 2 compression springs and 2 bolts. Alternately tighten the bolts in several passes.
- Torque:
- 43 N*m{438 kgf*cm, 32 ft.*lbf}
16. ADD AUTOMATIC TRANSMISSION FLUID |
- Fluid type:
- Toyota Genuine ATF Type T-IV
17. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL |
- NOTICE:
- When disconnecting the cable, some systems need to be initialized after the cable is reconnected (HILUX_TGN26 RM000004QR300CX.html).
18. INSPECT SHIFT LEVER POSITION |
When moving the shift lever from P to R with the ignition switch ON and the brake pedal depressed, make sure that the shift lever moves smoothly and correctly into position.
Start the engine and make sure that the vehicle moves forward after moving the shift lever from N to D, and moves rearward after shifting to R.
If the results are not as specified, inspect the park/neutral position switch and adjust the shift lever position.
19. ADJUST SHIFT LEVER POSITION |
Move the shift lever to N.
Remove the nut and disconnect the control cable.
Turn the control shaft lever clockwise until it stops, and then turn it counterclockwise 2 notches to set it to the N position.
While holding the control shaft lever slightly toward the R position side, connect the cable with the nut.
- Torque:
- 14 N*m{143 kgf*cm, 10 ft.*lbf}
20. CHECK FOR EXHAUST GAS LEAK |
If gas is leaking, tighten the areas necessary to stop the leak. Replace damaged parts as necessary.
21. INSPECT AUTOMATIC TRANSMISSION FLUID |
(HILUX_TGN26 RM0000014P801RX.html)
22. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY |
- Torque:
- 28 N*m{286 kgf*cm, 21 ft.*lbf}
23. INSTALL NO. 1 ENGINE UNDER COVER |
- Torque:
- 28 N*m{286 kgf*cm, 21 ft.*lbf}