Oil Pump

Oil Pump

REMOVAL
1) Remove the manual transmission assembly from vehicle.
2) Prepare the transmission for overhaul.
3) Remove the extension case.
4) Remove the transfer driven gear.
5) Remove the center differential.
6) Remove the oil guide.





7) Remove the snap ring and flat washer.





8) Using the ST, remove the neutral set spring and support.
ST1 18756AA000 CLAW
ST2 399893600 PLIERS





9) Raise the striking rod up, and then remove the spring pin.





10) Remove the selector arm No. 2 and shifter arm.





11) Remove the oil pump shaft assembly and plate.

NOTE:
Remove the bolts using ST, because tool may break if general tool is used.
ST 18663AA000 SOCKET





12) Remove the oil pump cover assembly.

NOTE:
Remove the bolts using ST, because tool may break if general tool is used.
ST 18663AA000 SOCKET





13) Remove the thrust washer on main shaft part.
14) Remove the oil pump rotor.





INSTALLATION
1) Apply oil to the outer periphery of outer rotor, then install to transmission case.





2) Install the thrust washer to main shaft part.
3) Install the oil pump cover assembly.
ST 18663AA000 SOCKET





4) Install the oil pump shaft assembly and plate.
ST 18663AA000 SOCKET





5) If replacing the oil pump cover assembly, select the transfer driven gear and thrust washer, then install them to the extension case.
6) Install the selector arm No. 2 and shifter arm.





7) Install a new spring pin.
8) Using the ST, install the neutral set spring and support.
ST1 18756AA000 CLAW
ST2 399893600 PLIERS





9) Install the snap ring and flat washer.
10) Install the oil guide.





11) Install the center differential.
12) Install the transfer driven gear.
13) Install the extension case.
14) Install the manual transmission assembly to vehicle.

INSPECTION
1) Make sure there is no damage on the inner rotor and outer rotor. Replace the inner rotor and outer rotor as assembly if damaged.
2) Clearance at tip
Install the inner rotor and outer rotor to transmission case. Align tip of the inner rotor and outer rotor, then measure the clearance. Replace the inner rotor and outer rotor as a set if clearance exceeds specification.





3) Side clearance
Measure to the transmission case and rotor. Replace the inner rotor and outer rotor as a set if clearance exceeds specification.