Removal and Installation: AWD
WARNING: This page is about a different car, the 2018 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
Removal
CAUTION:
- When removing the transmission assembly from engine, first remove the crankshaft position sensor (POS) from the transmission assembly.
- Be careful not to damage sensor edge.
- Shift the selector lever to "P" position, and release the parking brake.
- Disconnect the battery cable from the negative terminal.
- Remove front under cover with a power tool. Refer to Exploded View .
- Remove rear engine cover with a power tool. Refer to Exploded View .
- Remove control rod from lower lever of A/T shift selector assembly. Refer to Exploded View .
- Separate propeller shaft assembly (rear). Refer to Removal and Installation .
- Separate propeller shaft assembly (front). Refer to Removal and Installation .
- Remove crankshaft position sensor form cylinder block. Refer to Exploded View
.CAUTION:
- Never subject it to impact by dropping or hitting it.
- Never disassemble.
- Never allow metal filings, etc. to get on the sensor's front edge magnetic area.
- Never place in an area affected by magnetism.
- Remove catalyst conveter (bank 1). Refer to Removal and Installation .
- Remove starter motor from transmission housing. Refer to Removal and Installation (Electric Power Steering Models) , Removal and Installation (Direct Adaptive Steering Models) .
- Disconnect steering angle main motor harness connector and steering angle sub motor harness connector, and remove harness clip from bracket. Refer to Harness Layout . (Direct adaptive steering models)
- Remove rear plate cover. Refer to Exploded View .
- Turn crankshaft, and remove the four tightening bolts (
) for drive plate and torque converter.
CAUTION: Rotate crankshaft clockwise (as viewed from the crankshaft pulley side). - Remove fluid cooler tubes mounting bolts from transmission assembly and engine. Refer to Removal and Installation .NOTE: Cap or plug openings to prevent fluid from spilling.
- Support transmission assembly with a transmission jack.CAUTION: When setting the transmission jack, be careful not to allow it to collide against the drain plug and overflow plug.
- Remove rear engine mounting member and engine mounting insulator (rear) with a power tool. Refer to Removal and Installation .
- Disconnect A/T assembly connector and AWD solenoid connector.
- Remove harness brackets from transmission assembly and transfer assembly.
- Remove bolts fixing transmission assembly to engine with a power tool.
: Transmission to engine
: Engine to transmission
- Remove transmission assembly with transfer assembly from the vehicle.CAUTION:
- Secure torque converter to prevent it from dropping.
- Secure transmission assembly to a transmission jack.
- Never damage heated oxygen sensor 2.
NOTE: By placing wooden block between oil pan (upper) and front suspension member, the removal of transmission assembly from engine becomes easier. - Remove manual lever and control rod from transmission assembly. Refer to Removal and Installation .
- Remove air breather hoses, air breather box, and bracket. Refer to Removal and Installation (Transmission), Removal and Installation (Transfer).
- Remove transfer assembly from transmission assembly with a power tool. Refer to Removal and Installation
.NOTE: Cap or plug opening to prevent fluid from spilling.
Installation
Note the followings and install in the reverse order of removal.
- Check fitting of dowel pin (
).
- Install the fixing bolts of transmission and engine according to the following standards.
Bolt symbol
Insertion direction
Transmission to engine
Engine to transmission
Number of bolts
8
4
Bolt length (L)
mm (in)
65 (2.56)
35 (1.38)
Tightening torque
N.m (kg-m, ft-lb)
75 (7.7, 55)
46.6 (4.8, 34)
*: Tightening the bolt with bracket of air breather tube. Refer to Exploded View .
- Align the positions of tightening bolts for drive plate with those of the torque converter, and temporarily tighten the bolts (
). Then, tighten the bolts with the specified torque.
CAUTION:- Rotate crankshaft clockwise (as viewed from the crankshaft pulley side).
- When tightening the tightening bolts for the torque converter after fixing the crankshaft pulley bolts, be sure to confirm the tightening torque of the crankshaft pulley bolts. Refer to Removal and Installation .
- Rotate crankshaft several turns and check to be sure that transmission rotates freely without binding after converter is installed to drive plate.