Land Rover Defender 90 110 Workshop Book 8 Bulletins Rover

J 
Workshop Bulletin 
band  Rover 
Range  Rover 
- , .: -*a .I ATTENTION  SERVICE MANAGER 
LAND ROVER 
1 ,”, i 
LT85 LIGHTWEIGHT 
D lVID E D -CASE GEARBOX 
DECEMBER 1987 
BULLETIN  No. SLR 621 EN WB 3 
Further  supplies of this Bulletin  can be obtained, free of charge, from: 
Land  Rover  Merchandising  Service, 
P.O. Box 534, Erdington,  Birmingham B24 OQS 
. -3 SERVICE Land Rover  Service  Division  

37 
INTRODUCTION 
TRANSMISSION 
This Workshop  Bulletin is a supplement  to the 
current 
Land Rover  Workshop  Manual Publication 
SLR  621 
EN WM and  covers  the introduction  and 
overhaul 
ofthe LT  85  light  weight  divided - case 
gearbox.This unit replaces  the earlier  heavy duty LT 
85  gearbox  fitted to the  basic 
V8 engined  Land 
Rover  90 and 
110 models.  The heavy  duty version  is 
still  being  used 
for certain  non - standard 
applications. 
The  new  gearbox,  which 
is...

TRANSMISSION 
.1 OVERHAUL LT85 LIGHT WEIGHT DIVIDED CASE 
GEARBOX. ._> .. 
37 
Service Tools 
L 
18C 284  Impulse extractor. 
LST 284-1 
LST 101 
LST 102 
MS 47 Hand press. 
Reverse 
idler shaft  remover 
adaptor. 
Gauge  first gear  end
-float. 
Mainshaft 
oil seal  remover, 
replacer. 
1 mm 
With  the exception of MS 47 the  above  are existing ST1369M 
tools used  on the  heavy  duty LT 85 integral  case 
gearbox.  Selector detent spring retaining  tool and spacers. 
Special 
sockets and  spanners....

137 I TRANSMISSION 
STZOOaVl 
Stand for securing the gearbox  in a vice 
A. Ilmm diameter  holes. 
B. 
C. 
D. 
E. 1Omm nuts. 
Make 
from 
50 x 6mm steel angle. 
Make  from 
6mm steel plate. 
10mm diameter  stud 70mm long with 
25 of thread for adjustment. 
Note: 
Item D is where  the modification  to the 
original  stand 
is necessary. 
Material  and welding  specification 
Steel  plate 
BS 1449 Grade 4 or 14 
Arc  welding 
BS 5135. 
4  

TRANSMISSION 
1.. ... I. .,.. I.. ..... .,I .,!.,: . . . .. ..... 
37 
5 
L  

37 
. 
TRANSMISSION 
6  

.,__ .I . . .,. . ... .. .# ., 
I .. .. -.. . .. -. .. . ,. . 
KEY TO GEARS AND SHAFTS 
MAINSHACT ASSEMBLY  A. 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
10. 
11. 
12. 
13. 
14. 
15. 
16. 
17. 
18. 
19. 
20. 
21. 
22. 
23. 
24. 25. 26. 
27. 
28. 
29. 
30. 
31. 
32. 33. 
34. 
35. 
36. 
37. 
v 38. 
Mainshaft. 
Circlip. 
Selective  washer. 
4th  gear  baulk ring. 
3rd14th gear synchromesh  sleeve. 
3rd/4th gear synchromesh hub. 
3rd gear  baulk ring. 
Spacer. 
3rd  gear. 
Needle  roller bearing. 
2nd  gear. 
2nd...

E1 TRANSMISSION 
N 
8  

DISMANTLE 
TRANSMISSION 
1. Ensure that the gearbox oil has been  drained. 
2. Position  gearbox  on a bench  and support  with 
a  suitable  block 
of timber. 
3. Remove  the four  bolts  and detach  the L.H. 
mounting  bracket. 
4. Remove the eight  bolts,  four forward  facing 
and  four 
reanvard facing  and withdraw  the 
extension  housing and gasket. 
37 
5. Fit the  locally  manufactured  stand to the 
. gearbox  and secure  with two bolts, nuts, 
spring 
and plain  washers. 
6. Adjust  the stud...

(37 I TRANSMISSION 
Gearbox top cover. 
1. Remove the reverse  light switch, if fitted. 
2. Remove  breather pipe banjo union fixing bolt. 
3. Remove  the eight bolts and lift the top cover 
and  breather 
pipes from  gearbox  whilst taking 
care  not to allow  the detent  springs  to fall  into 
the  gearbox. 
4. Remove  the detent  springs. 
5. Remove  the top  cover  gasket. 
. 
Selector  rails and forks. 
1.  Using  a magnet,  withdraw  the 
selector rail 
detent  balls from  drillings  in gearbox....