Discovery 2. Manual - part 546
MANUAL GEARBOX - R380
OVERHAUL
37-37
13. Fit oil pick-up pipe with the off-set uppermost.
14. Lubricate oil pump recess with gearbox oil.
15. Lubricate a new 'O' ring with gearbox oil and fit
to oil pump.
16. Locate oil pump in extension housing with word
'TOP' towards top of housing.
17. Align oil pump fixing screw holes and tap pump
lightly around edges until it is fully in recess.
Do not attempt to pull pump into recess
using fixing screws.
18. Fit Torx screws and tighten to 6 Nm (4.5 lbf.ft).
19. Remove 2 slave bolts securing centre plate to
gearbox casing.
20. Apply sealant, Part No. STC 3254 to gearbox
casing face.
21. Position extension housing, align oil pump drive
with layshaft.
22. Clean extension housing bolt threads.
23. Apply Loctite 290 to threads of extension
housing bolts, fit bolts ensuring 2 longest bolts
are in their original positions and tighten by
diagonal selection to 25 Nm (18 lbf.ft).
24. Using new 'O' ring, fit interlock spool retainer
and tighten bolt to 8 Nm (6 lbf.ft).
25. Using tool LRT-37-015 and LRT-37-021, fit oil
seal collar.
26. Clean gear selector selector housing and
mating face.
27. Apply sealant, Part No. STC 3254 to gear
selector housing face.
28. Position gear selector housing and tighten
bolts to 25 Nm (18 lbf.ft).
Pump - gearbox oil
$% 37.12.47
Disassembly
1. Remove gearbox extension.
OVERHAUL, Extension - gearbox rear.
2. Remove 3 Torx screws, remove oil pump and
discard 'O' ring.
Reassembly
1. Clean oil pump recess in extension housing,
ensure screw holes are clean and dry.
2. Lubricate oil pump recess in housing with
gearbox oil.
3. Lubricate a new 'O' ring with gearbox oil and fit
to oil pump.
4. Locate oil pump in extension housing with word
'TOP' towards top of housing.
5. Align fixing screw holes and tap pump lightly
around edges until pump is fully in housing. Do
not pull pump into housing by tightening
screws.
6. Fit Torx screws and tighten to 6 Nm (4.5 lbf.ft).
7. Fit gearbox extension.