Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Disassembly

DISASSEMBLY

PROCEDURE

1. INSPECT COUNTERSHAFT REVERSE GEAR THRUST CLEARANCE

(a) Using a dial indicator, measure the countershaft reverse gear thrust clearance.

Standard clearance:

0.150 to 0.300 mm (0.0060 to 0.0118 in.)

If the clearance is outside the specification, replace the countershaft reverse gear, reverse gear bearing inner race or No. 4 transmission clutch hub.

HINT:

Replace the part or parts determined to be the most likely cause of the problem.

2. INSPECT COUNTERSHAFT REVERSE GEAR RADIAL CLEARANCE

(a) Using a dial indicator, measure the countershaft reverse gear radial clearance.

Standard clearance:

0.015 to 0.065 mm (0.0006 to 0.0026 in.)

If the clearance is outside the specification, replace the countershaft reverse gear, reverse gear bearing inner race or needle roller bearing.

HINT:

Replace the part or parts determined to be the most likely cause of the problem.

3. INSPECT COUNTERSHAFT 1ST SPEED GEAR THRUST CLEARANCE

(a) Using a dial indicator, measure the countershaft 1st speed gear thrust clearance.

Standard clearance:

0.150 to 0.480 mm (0.0060 to 0.0188 in.)

If the clearance is outside the specification, replace the countershaft 1st speed gear, clutch hub or counter gear.

HINT:

Replace the part or parts determined to be the most likely cause of the problem.

4. INSPECT COUNTERSHAFT 1ST SPEED GEAR RADIAL CLEARANCE

(a) Using a dial indicator, measure the countershaft 1st speed gear radial clearance.

Standard clearance:

0.015 to 0.067 mm (0.0006 to 0.0026 in.)

If the clearance is outside the specification, replace the countershaft 1st speed gear, 1st gear needle roller bearing or shaft.

HINT:

Replace the part or parts determined to be the most likely cause of the problem.

5. INSPECT COUNTERSHAFT 2ND SPEED GEAR THRUST CLEARANCE

(a) Using a dial indicator, measure the countershaft 2nd speed gear thrust clearance.

Standard clearance:

0.150 to 0.480 mm (0.0060 to 0.0188 in.)

If the clearance is outside the specification, replace the countershaft 2nd speed gear, clutch hub or counter gear.

HINT:

Replace the part or parts determined to be the most likely cause of the problem.

6. INSPECT COUNTERSHAFT 2ND SPEED GEAR RADIAL CLEARANCE

(a) Using a dial indicator, measure the countershaft 2nd speed gear radial clearance.

Standard clearance:

0.015 to 0.067 mm (0.0006 to 0.0026 in.)

If the clearance is outside the specification, replace the countershaft 2nd speed gear, 2nd gear needle roller bearing or shaft.

HINT:

Replace the part or parts determined to be the most likely cause of the problem.

7. REMOVE REAR COUNTER GEAR BEARING SNAP RING

(a) Using a snap ring expander, remove the rear counter gear bearing snap ring from the counter gear.

8. REMOVE REAR COUNTER GEAR BEARING OR ROLLER

(a) Using SST, remove the rear counter gear bearing or roller (inner races) from the counter gear.

SST: 09950-40011

09951-04010

09952-04010

09953-04010

09954-04010

09955-04071

09957-04010

09958-04011

SST: 09950-60010

09951-00320

9. REMOVE COUNTERSHAFT REVERSE GEAR

(a) Using SST and a press, remove the front counter gear bearing or roller, center countershaft bearing, reverse gear bearing inner race and countershaft reverse gear from the counter gear.

Text in Illustration

*1

Center Countershaft Bearing (Inner Race)

*2

Reverse Gear Bearing Inner Race

*3

Countershaft Reverse Gear

SST: 09555-55010

SST: 09950-60010

09951-00320

SST: 09950-70010

09951-07100

NOTICE:

Support the counter gear by hand so that it does not fall.

10. REMOVE REVERSE GEAR BEARING

(a) Remove the reverse gear bearing from the counter gear.

11. REMOVE REVERSE SHIFT RESTRICT BALL

(a) Remove the reverse shift restrict ball from the counter gear.

12. REMOVE REVERSE SYNCHRONIZER RING

(a) Remove the reverse synchronizer ring from the counter gear.

13. REMOVE NO. 3 SYNCHROMESH SHIFTING KEY SPRING

(a) Remove the No. 3 synchromesh shifting key spring from the counter gear.

14. REMOVE NO. 3 SYNCHROMESH SHIFTING KEY

(a) Remove the 2 No. 3 synchromesh shifting keys from the counter gear.

15. REMOVE NO. 4 TRANSMISSION HUB SLEEVE

(a) Remove the No. 4 transmission hub sleeve from the No. 4 transmission clutch hub.

16. REMOVE NO. 4 TRANSMISSION CLUTCH HUB

(a) Using SST and a press, remove the No. 4 transmission clutch hub and countershaft 1st speed gear from the counter gear.

SST: 09555-55010

SST: 09555-55010

SST: 09950-60010

09951-00320

SST: 09950-70010

09951-07100

NOTICE:

  • Do not insert SST deep inside the gear, as this may damage the synchronizer ring.
  • Use SST in the position shown in the illustration.

17. REMOVE 1ST GEAR NEEDLE ROLLER BEARING

(a) Remove the 1st gear needle roller bearing from the counter gear.

18. REMOVE NO. 1 SYNCHRONIZER RING SET

(a) Remove the No. 1 synchronizer ring set from the counter gear.

19. REMOVE NO. 1 TRANSMISSION HUB SLEEVE

(a) Remove the No. 1 transmission hub sleeve from the No. 1 transmission clutch hub.

20. REMOVE NO. 1 SYNCHROMESH SHIFTING KEY

(a) Remove the 3 No. 1 synchromesh shifting keys from the No. 1 transmission clutch hub.

21. REMOVE NO. 1 CLUTCH HUB SHAFT SNAP RING

(a) Using a snap ring expander, remove the No. 1 clutch hub shaft snap ring from the counter gear.

22. REMOVE NO. 1 TRANSMISSION CLUTCH HUB

(a) Using SST and a press, remove the countershaft 2nd speed gear, No. 2 synchronizer ring set and No. 1 transmission clutch hub from the counter gear.

SST: 09555-55010

SST: 09950-60010

09951-00320

SST: 09950-70010

09951-07100

23. REMOVE 2ND GEAR NEEDLE ROLLER BEARING

(a) Remove the 2nd gear needle roller bearing from the counter gear.

Components
COMPONENTS ILLUSTRATION ILLUSTRATION ...

Inspection
INSPECTION PROCEDURE 1. INSPECT COUNTER GEAR (a) Using a dial indicator and 2 V-blocks, measure the counter gear runout. Maximum runout: 0.03 mm (0.00118 in.) If the runout is ...

Other materials:

Pressure Sensor or Switch (C1254)
DESCRIPTION The accumulator pressure sensor is connected to the skid control ECU in the master cylinder solenoid. DTC No. DTC Detecting Condition Trouble Areas C1254 Accumulator pressure sensor fault (Fluid pressure does not chang ...

Power Supply Drive Circuit (C1257)
DESCRIPTION The motor relay (semiconductor relay) is built into the hydraulic brake booster and drives the pump motor based on a signal from the skid control ECU (master cylinder solenoid). DTC No. DTC Detecting Condition Trouble Areas C1257 ...

Installation
INSTALLATION PROCEDURE 1. INSTALL OCCUPANT DETECTION ECU (a) Check that the ignition switch is OFF. (b) Check that the cable is disconnected from the battery negative (-) terminal is disconnected. CAUTION: After removing the cable from the terminal, wait for at least 90 seconds before star ...

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