Land Rover Defender 90 110 Workshop 1984 Rover Manual

							REAR DIFFERENTIAL - NINETY 
FRONT  DIFFERENTIAL 
-NINETY  AND ONE TEN 
.. _,. . .... . .., :: ..., ..,./.,i; . .. ..:I 
ST516M 
ST517 
Drive  pinion  adjustment 
45. Ensure  that the pinion  end face  is free  of raised 
burrs  around 
the etched  markings. 
46.  Remove  the keep  disc from  the magnetised  base of 
dial  gauge  tool 
18G 191. 
47. Place the dial  gauge  and setting  block on a flat 
surface  and zero  the dial  gauge  stylus 
on the setting 
block. 
NOTE: The  setting  block  has  three setting  heights 
as  follows: 
39,50 mm Rationalised  axle 
38,10 mm Pre-Rationalised  axle 
30,93 mm Salisbury axle 
Ensure  that  the  height marked 
39,50 mm is used 
for 
this differential. 
40. 
Do not  fit the oil seal  at this  stage. 
41.  Tighten 
the pinion  flange nut slowly until the force 
required  to  rotate the pinion is 23 
to 40,25 kgf cm 
(20 to  35  Ibf  in).  This  will pre-load  the bearings  in 
order 
to check  the pinion  height dimension. 
NOTE: If using original  bearings,  which are bedded 
in,  the  pre
-load  figure is 11,5 to 17,25 kgf cm (10 to 
15 in Ib). 
. 
.I. . .. 
Drive  pinion  markings 
42. The markings  on the end  face adjacent  to the  serial 
number  are of no  significance  during servicing. 
43. The figure  marked on the end face  opposite  to the 
the deviation  from  nominal  required to correctly 
set  the  pinion. 
A pinion  marked  plus (+) must be 
set below nominal, a minus (-1 pinion must be set 
above nominal.  An unmarked  pinion  must  be set  at 
44.  The  nominal  setting dimension  is represented  by 
the  setting  gauge  block 
18G 191-4 which  is 
referenced from 
the pinion  end  face  to the bottom 
radius 
of the  differential bearing  bore. 
seripl number indicates, in thousandths of an  inch, ST518M 
48. Position the dial gauge centrally on the pinion end 
face  with  the stylus registering on the  lowest point 
on  one  differential  bearing  bore.  Note the dial 
gauge deviation from  the zeroed setting. . . .I-. .., nominal. ,I .. 
43 
I I continued 
;. . ._ .. . . . ..< % .. 
19  
						

							REAR DIFFERENTIAL - NINETY 
FRONT  DIFFERENTIAL - NINETY  AND ONE TEN 
49. Repeat  on  the other bearing  bore.  Add  together 
the  readings  then  halve  the sum  to obtain the  mean 
reading. Note  whether the stylus has  moved  up 
or 
down from the zeroed  setting. 
a.  Where 
the stylus  has moved  down,  the amount  is 
equivalent 
to the  thickness  of shims  that must  be 
removed  from under  the pinion  inner track to bring 
the  pinion  down to the  nominal position. 
b. Where  the  stylus  has  moved  up, the  amount  is 
equivalent 
to the  addition  thickness  of shims 
required  to  bring  the pinion  up 
to the nominal 
position. 
50. Before  adjusting  the shim  thickness,  check the 
pinion  face  marking and 
if it  has a plus (+) figure, 
subtract  that  amount 
in thousandths of an  inch 
from  the shim  thickness 
figure obtained 
in the 
previous  item. 
51. Alternatively, if the pinion  has  a minus (-) figure, 
add  the amount  to the shim thickness  figure. 
Adjust 
the shim  thickness  under  the  pinion head 
bearing  track as necessary. 
52. Recheck  the pinion  height  setting. If the  setting is 
correct,  the  mean reading  on  the dial 
gaugc will 
agree  with the figure  marked  on the  pinion  end 
face. 
For example,  with an end  face  marking of +3, 
the dial  gauge  reading  should  indicate that  the 
pinion  is 
+0.003 in. 
- 
58. Tighten  the pinion  flange  nut to the specified 
torque.  The force  required 
to rotate  the pinion 
shaft  should 
be within 23 to 40,25 kgf cm (20 to 
35 Ibf in) when  initial  inertia  has been  overcome. 
Change 
the bearing  pre-load shim  as necessary  to 
obtain  this requirement.  A thicker  shim will reduce 
pre
-load;  a thinner  shim will increase  prc-load. 
NOTE: If using  original  bearings,  which are bedded 
in,  the  pre
-load  figure is 11,5 to 17,25 kgf cm (10 to 
15 in Ib). 
59. Remove  the pinion  flange. 
Fitting  Pinion Oil Seal -latest type FRC  8220 
CAUTION 
A - When  fitting  the latest  type oil seal 
FRC  8220 
in place  of the  early  type FRC 4586 the latest 
mudshield  FRC 
SI54 must be fitted  in place  of the  early 
type  236072. 
Also seal replacer ISG 1382  must  be used  to fit  the  early 
type  oil seal  FRC  4586.  This 
tool must not be used to fit 
latest  seal FRC  8220. 
CAUTION B - Before  fitting the new  seal to the 
differential,  examine the seal  to ensure  that it is  clean, 
undamaged  and that  the garter  spring 
is properly 
located. 
A small  scratch  on the  seal  lips could  impair  its 
efficiency. 
60. Coat thc outer diameter of the  new  seal with  an 
all-purpose grease  and fit the seal,  lip side  leading 
squarely  on the  pinion  nose  housing  and  drive  the 
seal  into position  flush  with 
the end face  of the 
Bearing  pre-load adjustment 
53. Remove  the  pinion flange,  pinion, outer bearing 
and  spacer. 
54. Slide new shims, of the  same  thickness  as the 
originals  (bearing  pre
-load) into position  on the 
pinion  shaft. If the  original  shim  was  damaged 
or 
mislaid use a new shim of at least 4,06 nim 
(0.160 in) thickness. 
55. Enter  the  pinion in its  location in the pinion 
housing and 
fit the  outer  bearing  and spacer. 
56. Fit the driving  flange, washer and  nut. 
57. Do not fit the oil seal  at this stage. 
61. 
housing  using seal  replacing tool LST 106 
RR968M Lightly lubricate the seal lips  with EP90 oil. Fit the 
distancc piecc and flange  and secure with washer 
and 
nut. Tighten  the nut to the specified  torque 
and 
fit a new split  pin. 
ST1405M 
20  
						

							REAR DIFFERENTIAL - NINETY FRONT DIFFERENTIAL - NINETY AND ONE TEN 
?;::;:$ ,:-:. 62. Place  the differential  housing in the pinion 
63.  Fit the bearing  caps and bolts. 
Do not fully  tighten 
64. Fit the bearing  adjusting  nuts. 
housing. 
the 
bolts. 
?I .a. “Wi’ ,’ ..;::,.::# ”.?N 
51 
ST522M 
T I, ’ 
65 Using  service tool 530105,  slacken the lcft hand 
bearing  adjustment  nut  (as illustrated)  to produce 
end float. 
66. Tighten  the right  hand  nut  until  crown wheel/ 
pinion backlash  is just  removcd. 
66 
ST523M 
.. ...... :., ...... ,.. .... ..... 
DATA 
67. Tighten  the left hand  nut slowly until  it contacts the 
bearing.  Continue  turning  the  left
-hand nut until a 
backlash 
of 0,10 to 0,17 mm (0.004 to 0.007  ins) is 
achieved. 
Do not  slacken  the right-hand nut at any 
time,  otherwise 
thc bearing  preload will be 
affected. 
68. Fit the  locking  fingers  and roll pins. If necessary, 
tighten  the  adjustment  nuts slightly 
to align  the 
locking  finger with a slot. 
69.  Evenly  tighten  the  bearing  cap bolts  to the 
70. Rcchcck  crown whecl/pinion backlash. 
71. Lubricate  the bearings  and gears. 
specified 
torque. 
Pinion  bearing pre
-load ........................................ 23 to 40,25 kgf cm (20 to 35  Ibf  in) 
Crown 
wheel/pinion backlash ................................ 0,10 to 0,17 mm (0.004  to 0.007  in) 
Crown wheel 
run
-out ........................................... 0,10 mm (0.004 in) 
5.. > :..: .: .. ..., ‘2, , . ’ :... .. 
21  
						

							PRINTED IN ENGLAND  BY COVENTRY  PRINTERS (2/87 372101 
.-. ::. ... .. .  
						

							Section 
Number 
70 
57 STEERING 
BRAKING SYSTEM 
CONTENTS 
Page 
-Overhaul manual steering  box 
-Overhaul steering  column 
-Overhaul power steering box 
-Bleeding  power steering  system 
-Test power steering  system 
-Adjust power  steering  box 
- Overhaul  power steering  pump - V8 engine vehicles - early models 
- Overhaul Adwest  lightweight power steering  box 
- Bleeding Adwest lightweight  power steering  box 
-Test Adwest  lightweight power steering  box 
- Adjust Adwest  lightweight  power steering  box 
- Overhaul Gemmer power steering  box 
-Power steering - fault diagnosis 
- Overhaul  drop arm joint 
-Adjusting  track rod and  drag link joints  Adwest 
early models 
I 
I 
164 I SUSPENSION 
1 
3 
8 
16 
16 
18 
18 
20 
30 
30 
31 
32 
43 
44 
46 
- Overhaul front hub  assembly 
-Overhaul stub axle,  axle shaft constant  velocity joint and swivel  assembly 
1 
3 
- Description 
~, -Overhaul  front brake  calipers 
- Overhaul rear brakes - ‘90’ models 
- Overhaul  rear brakes - ‘1 10’ models 
- Overhaul transmission  brake 
- Bleeding brakes 
- Overhaul  master cylinder 
-Fault diagnosis 
n 
I76 I CHASSIS AND BODY 
1 
2 
6 
7 
8 
10 
11 
14 
- Chassis  dimensions - ‘90’ models 
- Chassis  dimensions - ‘110’ models 
- Kemoving  door trim - ‘90’ ana ’iiW 
- Rearside doors  and window mechanisms - ‘90’ and ‘1 10’ 
- Front  doors and window  mechanisms - ‘90’ and ‘1 10’ 
- 
1 
3 
6 
7 
12 
.. 
1  
						

							INTRODUCTION 
This Workshop  Manual  covers  the Land Rover  Ninety  and One  Ten range  of vehicles.  It is primarily  designed  to 
assist  skilled  technicians  in the 
efficient repair  and maintenance of Land Rover  vehicles. 
Using  the appropriate  service tools and carrying  out 
the procedures  as  detailed will enable  the  operations  to  be 
completed 
within the time stated in the Repair Operation Times 
The  Manual  has  been  produced in separate  books; this allows the information to be distributed  throughout  the 
specialist  areas of the modern  service facility. 
A table of contents in Book 1 lists  the major  components  and systems together  with thc section and book  numbers. 
The  cover 
of each  book  details thc sections  contained  within that book. 
The  title page  of each  book  carries the part  numbers  required to order  replacement  books, binders 
or complete 
Service  Manuals. This  can be done  through  the normal  channels. 
REFERENCES 
References to the left- or right-hand  side in the  manual  are  made when viewing  the vehicle  from the rear.  With  the 
engine  and gearbox  assembly 
removcd, the water  pump  end of the  engine  is referred  to as the front. 
To reduce repetition, operations  covered in this  manual  do not include referencc to testing  the vehicle  aftcr rcpair. It 
is essential that  work is inspected and  tested aftcr completion  and if necessary a road  test of the vehicle  is carried  out 6: T 
particularly  where safety relatcd items are concerned.  .t 
DIMENSIONS 
The dimensions  quoted are to design  engineering  specification. Altcrnative unit equivalents,  shown in brackets 
ColJowing the  dimensions, have bccn converted  from the original specification. 
During 
the period  of running-in from new, certain  adjustments  may vary  from  the specification figurcs given in this 
Manual. These  adjustments  will be re
-set  by the Distributor  or Dealer  at the After Sales  Service,  and  thereafter 
should  bc maintained  at the  figures  specified  in the Manual. 
REPAIRS AND REPLACEMENTS 
When replacement  parts are required it is essential  that only Land Rover  parts are used. 
Attcntion is particularly  drawn  to the  following  points  concerning repairs  and  the fitting of replacement  parts  and 
accessories: 
Safety  features  embodied 
in the vehicle  may be impaircd if other  than  Land  Rover  parts  are fitted. In certain 
territories,  legislation prohibits  the  fitting of parts 
not to the vehicle  manufacturers  specification. Torque wrench &++. 
sctting figures given in the Repair  Operation  Manual  must be strictly  adhered to. Locking devices, where specified, ; 
must bc fitted.  If the efficicncy of a locking  device is impaired  during  removal it must be renewed.  Owners 
purchasing  accessories 
while travelling abroad should ensure  that the accessory  and its fitted  location on the vehicle 
conform  to mandatory  requirements  existing in their country  of origin.  The terms 
of the Owners  Service Statement 
may  be 
invalidatcd by the  fitting of other  than Land  Rover parts. 
All Land Rover  parts have the  full backing  of the Owners  Service Statement. 
Land  Rover Distributors  and Dealers are obliged 
to supply only Land Rover  service  parts. 
POISONOUS SUBSTANCES 
Many  liquids  and other  substances  used in motor vehicles  arc poisonous  and  should  under no circumstances  be 
consumed  and  should  as far as  possible  be kept  away  from open  wounds.  These substances among others  include 
antifreeze, brake  fluid, 
fucl, windscreen washer  additives, lubricants  and various  adhesives. 
FUEL HANDLING PRECAUTIONS 
The following  information  provides  basic precautions  which must be observed if petrol  (gasoline)  is to  be  handled 
This information  is issued  for basic  guidance  only, and 
in any case of doubt appropriate enquiries  should be made  of 
your  local  Fire Officer. 
safely. It 
also outlines  the other  areas of risk  which  must not be ignored. g-; = 
I1  
						

							GENERAL 
PetroVgasoline vapour is highly  flammable and  in confined  spaces is also  very  explosive  and toxic. 
When 
petrol/gasoline evaporates  it produces 150 times  its  own  volume in vapour,  which when diluted  with air 
becomes  a  readily ignitable  mixture. The vapour  is heavier  than air and  will  always  fall to the  lowest  level. It can 
readily  be distributed  throughout  a workshop  by air  current,  consequently,  even a small  spillage 
of petrol/gasoline is ... ,  ~ ;;;,:ii.,;:: .... , .C I._..1 .. , .. . ... _ potentially 
very dangerous. 
Always  have a fire extinguisher  containing FOAM 
CO2 GAS, or POWDER  close at hand  when  handling  or draining 
fuel,  or when  dismantling  fuel systems  and in areas  where 
fuel containers  are stored. 
Always disconnect  the vehicle  battery BEFORE  carrying out dismantling  or draining work  on a fuel system. 
Whenever 
petrol/gasoline is  being  handled,  drained or stored,  or when  fuel systems  are being dismantled  all forms of 
ignition must  be extinguished  or removed, any head-lamps used  must be flameproof  and kept clear of spillage. 
NO  ONE  SHOULD  BE PERMITTED 
TO REPAIR  COMPONENTS  ASSOCIATED  WITH  PETROL/ 
GASOLINE  WITHOUT FIRST HAVING  HAD SPECIALIST  TRAINING. 
FUEL TANK DRAINING 
WARNING: PETROL/GASOLINE MUST NOT BE EXTRACTED OR DRAINED  FROM ANY VEHICLE WHILST 
IT IS STANDING  OVER A PIT. 
Draining or extracting petrol/gasoline from vehicle  fuel tank  must  be carried  out in a well  ventilated  area. 
The  receptacle  used 
to contain  the petrol/gasoline must be  more  than adequate for  the  full amount  of  fuel to be 
extracted  or drained.  The receptacle  should be clearly  marked  with  its contents,  and  placed in a  safe  storage  area 
which  meets the requirements 
of local authority regulations. 
WHEN 
PETROL/GASOLINE HAS  BEEN  EXTRACTED OR DRAINED  FROM A FUEL  TANK  THE 
PRECAUTIONS GOVERNING NAKED LIGHTS  AND IGNITION  SOURCES SHOULD BE MAINTAINED. 
FUEL TANK REMOVAL 
On vchiclcs where the fuel  line is secured to the  fuel  tank  outlet  by a spring  steel clip,  it is  recommended  that such 
clips  are 
reieased before  the fuel  line  is disconnected  or the  fuel  tank  unit is removed.  This procedure  will avoid  the 
possibility  of  residual petrol fumes in the  fuel  tank  being ignited  when the clips are released. 
As  an added  precaution  fuel tanks  should  have a 
PETROWGASOLINE VAPOUR  warning label attached  to them 
as 
soon as  they  are removed  from the vehicle. 
FUEL TANK REPAIR 
Under no circumstances should a repair to any  tank  involving  heat treatment be carried  out without  first  rendering 
the  tank  SAFE,  by using  one of the  following  methods: 
STEAMING:  With the filler  cap and  tank unit removed,  empty the tank.  Steam  the tank for at  least two hours 
with  low  pressure steam. Position  the  tank 
so that  condensation  can drain  away  freely, ensuring  that any 
sedimcnt and sludge  not volatised  by the steam, is washed  out during  the steaming  process. 
BOILING:  With the filler  cap and tank  unit removed,  empty the tank. Immerse  the tank  completely  in boiling 
water  containing  an effective  alkaline  degreasing  agent or a detergent,  with the water  filling  and 
also 
surrounding  the tank for at least two hours. 
After  steaming  or boiling 
a signed  and dated  label to this effect should  be attached  to the tank. 
. .. 
SPECIFICATION 
Purchasers  are advised  that the specification  details set out in this Manual apply to a range of vehicles  and not  to any 
one. 
For the  specification  of a particular  vehicle, purchasers  should consult  their Distributor  or Dealer. 
The  Manufacturers  reserve the right  to vary  their  specifications  with or without  notice, and  at such times  and 
in such 
manner as they  think  fit. Major as  well as minor  changes  may be involved  in accordance  with the Manufacturers 
policy 
of constant  product improvement. 
Whilst  every  effort  is made  to  ensure 
the accuracy  of the  particulars  contained in this Manual, ncither thc 
Manufacturer  nor the Distributor or Dealer,  by whom  this Manual  is supplied,  shall in any  circumstances  be  held 
liable  for any  inaccuracy 
or the consequences  thereof. 
COPYRIGHT 
@ Land Rover Limited 1984 
, , . . .. .I ., . . . . ... . . 
.. :  
All rights reserved. No part of this  publication  may be produced,  stored in a retrieval  system  or transmitted in any 
form,  electronic,  mechanical,  photocopying,  recording  or other  means  without  prior written  permission  of Land 
Rover  Limited,  Service Department,  Solihull, England. , .. ,. 
... 111  
						

							. Special Service 
The use of approved  special service  tools  is important.  They  are essential if service 
operations  are to be  carried  out efficiently,  and 
safcly. The amount of time  which  they 
save  can be considerable. 
Every  special  tool 
is designed  with the close  co-operation of Land  Rover  Ltd., and no 
tool  is put  into  production  which has not been  tested  and approved  by us.  New  tools  are 
only  introduced  where  an  operation cannot be satisfactorily  carried out using  existing 
tools 
or standard equipment.  The user is therefore  assured that the tool  is necessary  and 
that it  will perform  accurately,  efficiently and safely. 
Special  tools bulletins  will be issued  periodically  giving  details 
of new tools  as they  are 
introduced. 
All orders  and  enquiries from the United  Kingdom  should  be sent  direct to V. L. 
Churchill.  Overseas orders  should be placed  with the local V. L. Churchill  distributor, 
where  one exists.  Countries  where  there  is no  distributor  may order  direct  from 
V. L. 
Churchill  Limited, 
PO Box 3 Daventry, Northants,  England NNll4NF. 
The tools  recommended  in this  Workshop  Manual are listed  in a multi-language,  illustrated  catalogue 
obtainable  from  Messers. 
V. L. Churchill  at the  above  address  under publication  number 2217/2/84 or from 
Land  Rover  Ltd., under part  number 
LSM0052TC from the following  address,  Land  Rover Merchandising 
Service, 
P.O. Box  534,  Erdington,  Birmingham  B24 OQS.  
						

							STEERING 
GEMMER MANUAL STEERING BOX 
OVERHAUL 
Special tool: 
RO 1016 
Dismantle 
1. Remove  the  steering  box from  the vehicle,  and 
2.  Remove  the adjuster  locknut. 
3.  Remove the  four bolts  securing  the top  cover. 
4.  Unscrew the  top cover  from the adjuster. 
5. Lift  out the sector  shaft. 
6. Remove  the  four bolts  securing  the worm  shaft 
retaining  plate and remove the  plate complete  with 
shims  and joint washer. 
remove 
the drop arm. 
7. Remove the  taper bearing  and track. 
8. Withdraw the  worm shaft and collect  the opposite 
taper  bearing. 
.9.  Drift  out the worm shaft 
oil seal. 
10. Drift  out the shaft-end  bearing track  and collect  the 
shim.  Note since  this shim  or one  of the same  value 
must  be refitted,  as a precaution  against loss, check 
the  thickness  with  a  micrometer  and  note the 
reading. 
11. Prise  out the sector shaft oil seal. 
12.  Drift  out the sector  shaft needle roller bearings. 
Inspection 
13. Clean  and degrease  all parts  and examine for  wear 
14.  Renew  the  bearings (if worn),  oil seals  and  joint 
15. 
If the  bearing in the top  cover  is worn  renew  the 
Assembling 
Cleanliness,  during  the following  instructions,  is 
essential. 
16. Press  or drift  in the  worm,  shaft-end, bcaring track 
ensuring  that the  same  shim 
or one of the  same 
value 
is fitted  behind  the  track. It is essential  that 
the  track  is fitted squarely and  pressed fully home. 
17.  Lubricate  and 
fit the bearing  to the  shaft  and insert 
the  shaft into the  box. 
18. Lubricate and fit the opposite  bearing and track  to 
the  worm. 
19. Fit the  cover  plate, joint  washer and original  shims. 
Secure  with the four  bolts  and evenly  tighten  to 25 
to 30 Nm (18 to 22  Ibs  ft). 
20.  Check  the worm  shaft  bearing  pre
-load by 
attaching  special tool 
R01016 or a  similar 
alternative 
63,5 mm (2.5  in) diameter, to the worm 
shaft.  Wrap string  round 
the tool and  attach  a 
spring  balance 
to one  end and with  a steady  pull 
note  the rolling  resistance  which should  be  2.26 
to 
2.72 Kg (5 to 6 Ibs force).  Adjust  by adding  or 
subtracting  shims.  When  the correct  figure 
is 
achieved,  remove the bolts,  coat the threads  with 
sealant  and 
fit and evenly  tighten  to  within the 
above  torque  figures. 
- 
and damage. 
washers and any  other unsatisfactory  parts. 
complete  cover with bearing. 
57 
ST 887M 
21. With  the lip side  leading fit the  oil  seal  to the 
shaft
-end  of the box. 
NOTE: 
When  performing  instructions 22, 23 and 26 
pressure must only be applied to the  hardened  square 
end 
of the  bearings. 
22.  Press  in the  sector  shaft top bearing to a  depth  of 
83 mm (3.150 in)  from the  top  machined  face of 
the steering  box. 
23.  Press  in 
the sector  shaft  lower bearing 1,OO mm 
(0.040 in)  below the chamfer. 
24.  Check  that 
no end-play  exists  in the sector  shaft 
adjuster. 
To reduce  end-play unstake  the threaded 
cup  and turn  clockwise  until all play 
is removed  and 
restake. 
25. Fit the sector shaft so that the roller is in the centre 
of the worm in the straight ahead  position. 
26. 
Fit the  bearing to the  sector  shaft top cover. 
27.  Screw  the top  cover  onto the adjuster  and secure 
with  the  four  bolts and evenly  tighten  to  25 
to 
30 Nm (18 to 22  Ibs  ft). 
28.  Loosely 
fit the adjuster  locknut. 
29.  Keeping  the  sector shaft 
in the straight  ahead 
position  fit the  drop  arm and  turn  the adjuster 
clockwise  until  pre
-load is applied  to the shaft. The 
amount  of pre-load  should  be such  that when  the 
shaft  is turned  half a turn  to the  left  then  half a turn 
to 
the right,  the backlash  must only  just  be 
perceptible.  When satisfactory  tighten the adjuster 
locknut. 
30. 
Fit the sector shaft oil seal. 
31.  Remove  the 
oil filter plug and  pour  in 
approximately 
0,43 litres  (0.75 pints) of the 
appropriate  recommended 
oil to  a minimum  level 
of  25 
mm (1.0 in)  below the top  of the  filler  hole. 
Refit  the plug  and tighten  to 
20 Nm (14.75 Ibs ft). 
1  
						

							157 I STEERING 
ST885M 
KEY TO MANUAL STEERING BOX 
17 
1. Adjuster lock nut. 
2. Top cover  retaining  bolts. 
3. Topcover. 
4. Top cover  joint washer. 
5. Sector  shaft. 
6. Worm shaft retaining plate and  bolts. 
7. Worm shaft shim(s). 
8. Worm shaft joint  washer. 
9. Worm  shaft. 
10. Worm shaft taper bearing. 
11. Worm  shaft oil seal. 
12. Worm shaft bearing track  shim. 
13. Sector shaft oil seal. 
14. Sector  shaft needle  roller bearings. 
15. Worm shaft grommet. 
16. Sector  shaft adjuster. 
17. Sector  shaft threaded  cup. 
18. Oil filler plug  and washer. 
2