Land Rover Defender 90 110 Workshop Book 8 Bulletins Rover

FUEL SYSTEM 
:.. 20. 
21. 
22. 
23. 
21. 
25. 
26. 
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19 3 
Disconnect the inter-connecting link between  the 
carburetters at the  left hand carburetter. 
At  the  right  hand carburetter,  release 
the lock nut 
and  slacken  off 
the lost motion adjustment  screw, 
until 
it is  well  clear of the spring loaded  pad. 
If  necessary  adjust the idle  screw  to 
maintain the 
correct  idle speed.  Check the 
CO level and 
carburetter  balance, adjust 
if required. 
Re
-connect  the inter-connecting...

STEERING 
Special tools: 
Drop arm puller 
MS 252A 
End  cover  wrench  adaptor 
LST123 Input shaft oil seal installer LST124 
Sector  shaft oil seal installer LST125 
Valve  seal installer and valve ring compressor LST126 
Preload setting  tool R01016 
57 
Dismantle 
1. Remove the steering box from the vehicle. 
2. Bend  back the locking  tab and removc the  drop 
arm  nut.  Using  special 
tool MS 252 A or a suitablc 
alternative,  withdraw the drop  arm from  the sector 
shaft. 
3.  Using  special...

El STEERING 
7. Restrain  the  sector  shaft  adjuster with a 6 mm 
8. Remove the six bolts  securing the sector  shaft 
hexagonal 
key and  remove  the locknut. 
cover. 
ST1816M 
9. Hold  the  sector shaft  cover  and turn  the  adjuster 
and  screw  clockwise 
until the cover  can  be 
removed. 
10. Lift-out the sector shaft. 
11. Remove  the rack  and  piston  assembly and collect 
the rack adjuster  thrust pad. 
ST1819M 
g.2 -- 
% *’ 12. Drive-out the worm  adjusting  screw locking pin. 
13.  Using...

STEERING 
,..’ - 15. Withdraw the mput shaft, worm and valve 
assembly. 
15 
ST1822M 
16. Release  the circlip  and remove  the  steel  washer 
and  oil seal  from the  sector shaft housing. 
oil  seal  from 
thc input  shaft housing. 
-. 17. Remove the  wire circlip, anti-extrusion washer  and 
17 
ST1949M 
INSPECTION AND OVERHAUL OF COMPONENTS 
Steering box housing 
1. 
2 
3. 
4 
Examine  the  sector  shaft  upper and lower  needle 
roller bcarings and if necessary drive  them  from the 
housing 
with...

17 STEERING 
Valve and worm  assembly 
NOTE: If the  inner  ball race  is faulty  and unfit for 
further  service it cannot  be  renewed and a new  valve 
and  worm  assembly  must be obtained  and fitted.  Should 
this  be the 
case, the  following  checks of the  valve  and 
worm  can be ignored. 
10. Examine  the valve  rings which  must be free  from 
cuts,  scratches  and scores. 
Also, the rings  should 
be a  loose  fit 
in the grooves. 
11. If any  ring  is unsatisfactory,  all the  rings  must...

STEERING 
worm. 
b 
57 
10 17 21 
17 
18 20 19 
ST1955M 
22. 
The  valve  and worm  assembly  should be renewed if 
there  is wear  at the  following  points: 
a) Inner and outer  bearing  tracks. 
b)  Worm. 
c)  Valve  locator. 
d)  Input  shaft needle  bearing  journal. 
23. Examine  the outer  ball race  and track  for wear  and 
general  condition.  The race  should  be renewed 
if 
there  is wear  and pitting or if a new  valve  and worm 
assembly  is being  fitted. 
ST1957M 
27 
 
28 
4 
32. To fit...

157 I STEERING 
34. Drive-in a new  bearing,  up to the shoulder,  with 
the  bearing  number  and chamfered  ends 
of the 
rollers  trailing. 
35. Fit a new ‘0’ ring seal to the cover. 
36. Check  that  the  cover bearing  lubrication  passage 
and  bleed nipple  hole is clear. 
ST 1 
Assemble 
During  the  following  assembly  instructions absolute 
cleanliness  must  bc observed. 
Also when  fitting 
components  and oil seals  they  must 
only be lubricated 
with the  recommended  fluid, or petroleum...

ST1935M /’ 
6. Secure preload  setting tool R01016 to the  input 
shaft  with the grub  screw.  Wind string  round  the 
tool  and tie a spring  balance  to the 
free end  of the 
string.  Whilst  turning  the input  shaft cover 
clockwise,  pull the spring  balance  until a constant 
preload  reading 
of 0,69 Nm is achieved. 
Fitting sector shaft and piston
-rack assembly 
7. Fit  the  sector  shaft to the  housing  and engage  it 
with  the input  shaft worm  in the  straight 
ahcad 
position. 
8....

157 I STEERING 
18. Lubricate the rack piston  plastic  seal and insert  the 
piston  into the piston  bore, rack end first,  as 
in 
instruction 11 of the  dismantling  procedure, to a 
depth  of 37 
mm below the lip of the  bore. 
19. Lubricate  and fit the  sector  shaft in the straight 
ahead  position. 
20.  Lubricate  and 
fit ‘0’ ring seal to the sector  shaft 
cover. 
21.  Restrain  the sector  shaft adjuster  and screw
-on the 
cover,  reversing instruction 17. Secure with the six 
bolts,...