Shaft Assembly and Housing Installation

NOTE: The illustration shows the 4WD transmission; the 2WD transmission does not have the transfer assembly.

1. Install the differential assembly in the torque converter housing.
   Fig 1: Identifying Shaft Assembly And Housing

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
2. Install the baffle plate on the servo body.
3. Assemble the mainshaft, the countershaft, and the secondary shaft.
4. Join the mainshaft subassembly (A), the countershaft subassembly (B), and the secondary shaft subassembly (C) together. Then install them in the torque converter housing. Do not bump the countershaft on the baffle plate (D).
   Fig 2: Identifying Mainshaft Subassembly, Countershaft Subassembly And Secondary Shaft Subassembly

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
5. Make sure the countershaft subassembly and the differential subassembly are clear of the baffle plate.
6. If the detent arm (A) was removed, install the detent arm with the arm collar (B) on the servo body (C), and install a new lock washer (D) by aligning its cutout (E) with the projection (F) of the servo body. Install and tighten the bolt, then bend the lock tab of the lock washer against the bolt head.
   Fig 3: Identifying Arm Collar, Servo Body And Projection

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
7. Install the selector control shaft (A) in the torque converter housing aligning the manual valve lever pin (B) on the selector control shaft with the guide of the manual valve (C). Pull the manual valve gently when aligning the manual valve with the selector control shaft.
   Fig 4: Identifying Selector Control Shaft, Manual Valve Lever Pin And Manual Valve

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8. Hook the detent spring (A) to the detent arm (B).
   Fig 5: Identifying Detent Spring And Detent Arm

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9. Turn the shift fork shaft (A) so the large chamfered hole (B) is facing the fork bolt hole (C) of the reverse shift fork (D).
   Fig 6: Identifying Shift Fork Shaft, Fork Bolt Hole And Reverse Shift Fork

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
10. Install the shift fork and the reverse selector together on the shift fork shaft and the countershaft subassembly. Secure the reverse shift fork to the shift fork shaft with the lock bolt and a new lock washer (E), then bend the lock tab of the lock washer against the bolt head.
11. Install the needle bearing and the countershaft reverse gear on the countershaft subassembly.
12. Install the reverse idler gear in the transmission housing (see REVERSE IDLER GEAR REMOVAL AND INSTALLATION ), if it removed.
13. Install the idler gear shaft/idler gear assembly (see IDLER GEAR SHAFT REMOVAL AND INSTALLATION ), if it was removed.
14. Install the three dowel pins (A) and a new gasket (B) on the torque converter housing (C).
    Fig 7: Dowel Pins, Gasket And Torque Converter Housing With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
15. Align the spring pin of the selector control shaft (D) with the transmission housing groove (E) by turning the selector control shaft. Do not squeeze the end of the selector control shaft tips together when turning the selector turning shaft. If the tips are squeezed together, it will cause a faulty shift position signal or position due to the play between the selector control shaft and the transmission range switch.
16. Place the transmission housing (F) on the torque converter housing. Do not install the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor before installing the transmission housing on the torque converter housing.
17. While expanding the snap ring of the secondary shaft bearing using snap ring pliers, push the transmission housing down to start the secondary shaft bearing through the snap ring. Then release the pliers. While rotating the reverse idler gear with a screwdriver, push down the housing until it bottoms and the snap ring snaps in place in the secondary shaft bearing snap ring groove.
    Fig 8: Removing Snap Ring

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18. Check that the secondary shaft bearing snap ring (A) is seated in the bearing and housing groove, and check that the ring end gap (B) is 0-7 mm (0-0.28 in.).
    Fig 9: Identifying Snap Ring Gap

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19. Install the transmission housing mounting bolts (20 bolts) along with the transmission hanger and harness clamp brackets.
20. Tighten the transmission housing mounting bolts to 44 N.m (4.5 kgf.m, 33 lbf.ft) in two or more steps in a crisscross pattern.
21. Install the input shaft (mainshaft) speed sensor (A) and the output shaft (countershaft) speed sensor (B) and the washer (C) with new O-rings (D).
    Fig 10: Input Shaft Speed Sensor, Output Shaft Speed Sensor And Washer With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
22. Install the shift solenoid harness connector (F) in the transmission housing with a new O-ring (G).
    Fig 11: Shift Solenoid Harness Connector, Transmission Housing And O-ring With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
23. Connect the shift solenoid harness connectors to the shift solenoid valves:
    • BLU wire connector to shift solenoid valve A.
    • ORN wire connector to shift solenoid valve B.
    • GRN wire connector to shift solenoid valve C.
    • YEL, WHT, and WHT wire connector to shift solenoid valve D.
    • RED wire connector to shift solenoid valve E.
24. Install a new gasket (A) and the two dowel pins (B), then secure the shift solenoid valve cover (C) with the bolts.

Fig 12: Dowel Pins And Shift Solenoid Valve Cover With Torque Specifications

Courtesy of AMERICAN HONDA MOTOR CO., INC.