Removal, Installation of Secondary Pump

Removal, Installation, of Secondary Pump

(transmission installed)






Transmission
Lower slightly at rear by removing rear engine mount, installing mount. Detach, attach exhaust system at rear.

Hexagon socket bolts (45)
Unscrew screw in and take off secondary pump (20), 8 Nm.

O-ring (18) and intermediate plate (19)
Remove, install.

Pump wheels (22 and 23)
Withdraw from housing. When installing, oil and insert in the grooves (step 6).

Cover (27)
Remove, after having removed locking ring (28).

Compression spring (24), spring plate (25), shutoff piston (21)
Take out of the pump housing (20), check O-ring (29) and Teflon rings (30 and 31); renew, if necessary.


Removal and Installation


1. Remove rear engine mount.

2. Detach exhaust system at rear.






3. Unscrew hexagon socket bolts (45) and take off secondary pump (20).

4. Take out O-ring (18) and intermediate plate (19).






Installation Instruction
Tightening torque of hexagon socket bolts 8 Nm.


Disassembly and Assembly

5. Take pump wheels out of the housing.






6. Take off locking ring (28) and end cover (27)

Installation Instruction

Oil pump wheels (22) and (23) and insert into the pump housing. Insert the driving pump wheel (22) so that the drivers (arrow) are facing up the way.






7. Take shutoff piston (21) together with compression spring (24) and spring plate (25) out of the transmission.






8. Remove O-ring (29).

9. Examine all parts for signs of damage and wear. The joint of the two Teflon rings (30 and 31) must be completely together; insert Teflon rings into the grooves with a little grease, if necessary.