Land Rover Defender Workshop 1993 Rover Manual

COOLING SYSTEM 
COOLING SYSTEM DRAIN AND FILL COOLING SYSTEM 
Engine  Protection  WARNING: Do not  remove the  radiator 
filler cap 
To  prevent  corrosion  of the  aluminium  engine parts 
it when the engine  is hot  because  the cooling 
is vital  that  the  cooling system is filled with a solution  system is pressurized  and  personal  scalding 
of  clean  water  and  anti
-freeze winter  and  summer.  could result. 
Never 
fill or  top-up  with  water only, always  add 
anti
-freeze.  Never use  salt...

COOLING SYSTEM 
To Refit 
9. Clean the timing  cover mating  face and 
ensure  all trace 
of old  gasket  is removed. 
10.  Smear  a small  quantity  of grease  on both 
sides  of  a new gasket  and place 
it in position 
on  the timing  cover. 
11. Clean  the threads  of the  four  long  bolts  that 
penetrate the  cylinder block  and  apply  Loctite 
572 
to the  threads. 
12. Fit  the  water  pump to the engine  and secure 
with  the  retaining 
bolts and  single  stud that 
also  secures 
the...

COOLING SYSTEM 
4. The temperature  at which  the thermostat 7. Fit the  thermostat  cover using a new  gasket. 
should  be  fully  open is  stamped  on  the  Coat the threads 
of the  retaining  screws  with 
forward  end  of the  thermostat.  The following  Loctite 
572 and tighten  the  screws  evenly to 
method can  be  used to determine if the  the correct  torque. 
thermostat 
is satisfactory  and suitable  for  8. Connect  all pipes  and hoses  and refill  the 
refitting.  cooling system in...

COOLING SYSTEM 
REMOVING RADIATOR  To Refit 
To  remove 
12.  Lower  the radiator  into position  in  the  engine 
compartment,  ensuring  that  the 
two pegs  at 
1. Disconnect the  battery.  the  bottom  of the  radiator  locate in the 
2. Drain the cooling  system.  corresponding rubber pads in  the  cross 
3. Disconnect  the expansion  and overflow  hoses  member brackets. 
from  the top of the  radiator. 
13. Locate  the  cowling  into  the  clips at the  bottom 
4. Release  radiator support...

COOLING SYSTEM FAULT DIAGNOSIS 
SYMPTOM  POSSIBLE 
CAUSE CURE 
A-EXTERNAL LEAKAGE 1.Loose hose  clips  1.Tighten 
2Defective  rubber hose  2.Renew 
3. Damaged  radiator seams  3. Rectify 
4. Excessive  wear in the  water  pump 4. Renew 
5. Loose core plugs  5. Renew 
6. Damaged  gaskets  6. Renew 
7. Leaks  at the  heater connections  7. Rectify 
or plugs 
8. Leak 
at the water  temperature  8. Tighten 
gauge  plug 
1.  Defective  cylinder head gasket 
2. Cracked  cylinder wall 
3. Loose  cylinder head...

SYMPTOM POSSIBLE CAUSE CURE 
E-CORROSION 1. Excessive impurity in the  water 1. Use only soft, clean  water  together with 
correct anti-freeze  or inhibitor  mixture 
2. 
lnfrequent flushing  and draining of 2. The cooling  system should be drained and 
system  flushed thoroughly 
at least  once  a year 
3. 
lncorrect anti-freeze  mixtures  3. Certain anti-freeze solutions have  a 
corrosive  effect 
on parts of the cooling 
system. Only  recommended  solutions should 
be used. 
G-OVERCOOLING 1....

MANIFOLDS AND EXHAUST 
EXHAUST SYSTEM COMPLETE 
ST3420M 
NOTE: Ensure no exhaust  leaks  are evident  in 
either  a new  or old  exhaust  system, as  this 
will 
affect vehicle  performance.  disconnect  any components  until exhaust  system 
WARNING: To prevent  personal  injury  occurring 
from 
a hot  exhaust  system, DO NOT attempt  to 
has cooled  down.  

MANIFOLDS AND EXHAUST 
EXHAUST SYSTEM  EXHAUST MANIFOLD 
Remove  and refit 
Removing  Left hand 
Remove 
and refit 
1. Raise  the vehicle  on  a suitable  hoist  and Right hand 
apply the parking  brake. 
2. Disconnect  the electrical  plugs from  the Removing 
heated  oxygen  sensors. 
3. Remove  the three  nuts securing  each  front 
pipe 
to the  manifold.  and  remove the  gaskets. 
4. Remove the two nuts and bolts  securing  the 
front  pipe 
to the intermediate  pipe. 
5. Withdraw the front  pipes...

ASSEMBLY  RENEWAL  SPECIAL TOOLS CLUTCH 
The major  part of clutch  assembly  renewal is the LRT-12-001 Clutch  centralising  tool 
removal  of the  transmission 
to gain  access  to the 
clutch.  Because  of the  considerable combined  weight 
Remove 
of the main  gearbox  and transfer  box and  the off-set 
centre 
of gravity, it is  vital  that clutch  replacement 1. Remove  the transmission,  see SECTION 37. 
must only  be  undertaken  by organisations  or 2. Mark the position  of the  clutch  cover...

CLUTCH DRAGS - Start with check  No. 20 and  proceed  as directed. 
POSSIBLE CAUSES  CHECK AND ACTION 
1 Free play at  the clutch  pedal  Yes Check3 No Check2 
2  Clutch  pedal tight on the  pivot  shaft  Yes Free the clutch pedal  and lubricate 
No Check 3. 
3  Clutch  release  mechanism  sticking  Yes Free the mechanism 
No Check4 
4 Clutch  slave or master  cylinder pistons seized or sticking  Yes Repair or renew the cylinder No Check 5. 
5 Clutch  diaphragm cracked  Yes Renew the cover  plate No...