300Tdi Discovery
44
AUTOMATIC GEARBOX
6
REPAIR
13. Remove starter.
14. Working through starter aperture note position of
torque converter flexible drive plate to facilitate
refitting.
15. Remove the four torque convertor to flexible
drive securing bolts, rotating engine to gain
access to each individual bolt.
16. Raise vehicle on four post ramp [hoist].
17. Drain lubrication oil from transfer and main
gearboxes.
18. Disconnect speedometer cable from transfer
gearbox and disconnect associated clipping.
19. Remove rear propeller shaft.
See PROPELLER
SHAFTS, Overhaul, Flexible Coupling
20. Disconnect front propeller shaft at transfer
gearbox and tie to one side.
21. Remove exhaust front pipe.
22. Remove bolts securing front and centre silencer
mounting brackets and tie silencer to one side.
23. Disconnect oil cooler pipes from gearbox.
24. Blank off pipes and union connections.
25. Remove bolt securing retaining bracket to sump
and move cooler pipes aside.
26. Disconnect selector cable from lever on side of
gearbox.
27. Disconnect inhibitor switch multi-plug.
28. Disconnect park brake cable from linkage to park
brake lever.
29. Disconnect electrical connections from
differential lock switch on transfer gearbox.
30. Remove two lower bolts from transfer gearbox
input bearing support plate.
31. Assemble approved support cradle to
transmission hoist.
32. Raise hoist and secure cradle to transfer
gearbox input bearing support plate using bolts
removed.
33. Disconnect gearbox mounting brackets from
chassis cross member.
34. Remove chassis cross member.
35. Lower transmission sufficiently to allow access
to items attached to top of gearbox.
36. Remove left hand gearbox mounting bracket
assembly.
37. Remove ties from breather pipes and harness.
38. Remove nut securing gearbox oil filler/dip stick
tube to bell housing.
39. Release union nut at gearbox sump and remove
filler/dipstick tube. Fit blanking plugs.
40. Support engine using a wooden block with a
suitable ramp [hoist] jack.
41. Remove nut securing kick down cable bracket to
bell housing.
42. Remove two bolts securing top of bell housing to
flywheel housing.
43. Remove nuts securing bell housing to flywheel
housing and withdraw transmission assembly
from engine.
44. Fit a suitable torque converter retaining strap to
the bell housing.
45. Remove hoist and transmission from under
vehicle.
46. Fit lifting eyes to transmission.
47. Using suitable chains and lifting tackle take
weight of transmission assembly.
48. Remove bolts securing transmission cradle to
transfer box and withdraw hoist complete with
cradle.
49. Refit bolts to cover plate.
