1995 LAND ROVER DISCOVERY coolant

26COOLING SYSTEM
2
ADJUSTMENT 3.Disconnect bottom hose from radiator. Drain
coolant into a clean container. Reconnect bottom
hose, re-tighten hose clamp.
NOTE: It is not possible to drain all coolant
retained in heater system. It is not
desirable to flush through system, after
draining.
4.Remove engine drain plugs, one each side of
cylinder block, beneath exhaust manifolds. Drain
coolant, refit and tighten plugs.
5.Pour correct solution of water and anti-freeze
into expansion tank until radiator is full.
6.Start engine, run it until normal operating
temperature is attained, topping up as
necessary.
7.Refit radiator filler plug and 'O' ring, with new 'O'
ring if required. Tighten to
6 Nm.
8.Fit expansion tank filler cap.
9.Allow engine to cool, check coolant level. Finally
top up expansion tank until level reaches seam
of expansion tank.

V8i
1
REPAIR EXPANSION TANK
Service repair no - 26.15.01
Remove
WARNING: Do not remove expansion tank
filler cap when engine is hot. The cooling
system is pressurised and personal
scalding could result.
1.Remove expansion tank filler cap by first turning
it slowly anti-clockwise, pause to allow pressure
to escape. Continue turning in same direction
and lift off.
2.Disconnect two hoses from bottom of expansion
tank, allowing coolant to drain into a suitable
container.
3.Remove three fixing bolts, remove expansion
tank.
Refit
4.Reverse removal procedure.
5.Replenish cooling system.
6.Check for leaks around all hose connections.VISCOUS COUPLING, FAN BLADES, PULLEY AND
COWL
Service repair no - 26.25.19 - Viscous coupling
and fan assembly
Service repair no - 26.25.03 - Water pump pulley
Service repair no - 26.25.05 - Fan blades
Special tools:
LRT-12-093
LRT-12-094 - Viscous coupling removal
Remove
1.Disconnect battery negative lead.
NOTE: 4.0 V8 only:
Release coolant hose from cooling fan upper
cowl.
2.Release 2 clips securing cooling fan upper cowl.
Remove cowl.

26COOLING SYSTEM
2
REPAIR
3.Use LRT-12-093 to prevent coolant pump pulley
from turning and using LRT-12-094, unscrew
viscous coupling from water pump.
NOTE: Nut securing viscous unit to water
pump has a right hand thread. Release by
turning anti-clockwise when viewed from
front of viscous unit.
4.Remove fan and coupling assembly.
Do not carry out further dismantling if component
is removed for access only.
NOTE: Mark fan with reference to assist
refitting.
5.Remove 4 Allen screws securing blades to
coupling. Remove coupling.
6.Remove serpentine drive belt.
7.Remove pulley fixings, remove pulley.Refit
8.Clean fan blades and mating faces.
9.Fit fan blades to coupling. Secure with screws.
Tighten to
24 Nm.
10.Using LRT-12-093 and LRT-12-094, fit fan
assembly to pump. Tighten to
56 Nm.
11.Fit cooling fan upper cowl. Secure with clips.
12. 4.0 V8 only:Fit coolant hose to cooling fan upper
cowl.
13.Fit serpentine drive belt.
14.Fit pulley fixings, remove pulley.
15.Reconnect battery negative lead.

V8i
3
REPAIR THERMOSTAT
Service repair no - 26.45.01
Remove
1.Partially drain cooling system, until coolant level
is below thermostat housing.
2.Disconnect hose from thermostat housing.
3.Disconnect electrical connections to water
temperature switch.
4.Remove outlet elbow.
5.Withdraw thermostat.
Test
6.Note rating of thermostat is 88°C. Place
thermostat in a container half full of water. Heat
water, observe temperature at which thermostat
opens. Thermostat is satisfactory if it opens
between 85°C and 89°C.Refit
7.Insert thermostat with jiggle pin/vent hole
uppermost (12 o'clock position).
8.Fit the outlet elbow and new joint washer.
Tighten to
28 Nm.
9.Reverse removal procedure. 1 to 3.
10.Check for coolant leaks around all connections
and joint faces.

26COOLING SYSTEM
4
REPAIR RADIATOR
Service repair no - 26.40.01
Remove
1.Drain cooling system.
See Adjustment,
Coolant
2.Remove viscous coupling and fan assembly.
See Viscous Coupling, Fan Blades, Pulley
and Fan Cowl
3.Release 2 clips and remove fan cowl.
4.Disconnect radiator top hoses.
5.Disconnect four transmission and engine oil
cooler connections to radiator end tanks. Note oil
spillage will occur when connections are
loosened. Blank off exposed oil connections.
6.Disconnect transmission oil temperature sensor.
7.Remove radiator securing brackets from each
side.
8.Remove radiator unit by lifting from its location.
Check condition of rubber mounting pads.Refit
9.Reverse removal procedure.
10.Clean unions and apply sealant.
11.Lubricate new 'O' rings before fitting.
12.Check radiator sealing strips are securely
located.
13.Transfer oil cooler adaptors if fitting new radiator.
14.Ensure that oil cooler connections are tightened
to
30 Nm.before fitting fan blades and cowl.
15.Clean coolant/oil spillage from vehicle.
16.Check all connections for coolant/oil leaks.

26COOLING SYSTEM
6
REPAIR WATER PUMP
Service repair no - 26.50.01
Remove
WARNING: Disconnect battery negative
terminal to prevent engine being started
before removing or adjusting drive belts.
1.Drain engine cooling system.
See Adjustment,
Coolant
2.Remove fan blades and pulley.See Viscous
Coupling, Fan Blades, Pulley and Fan Cowl
3.Disconnect inlet hose from water pump.
4.Remove water pump bolts.
5.Remove water pump and joint washer.
Refit
6.Lightly grease new joint washer, position on
timing cover.
7.Clean threads of all long bolts and coat with
Loctite 572 thread lubricant-sealant.
8.Locate water pump in position. Tighten
remaining water pump housing bolts evenly to
28 Nm.
9.Reverse removal procedure. 1 to 3.
10.Check for coolant leaks around all hose
connections and joint faces.

Mpi
1
REPAIR COOLANT PUMP
Service repair no - 26.50.01
Remove
1.Position drain tin below coolant pump hose.
WARNING: Do not carry out the next
instruction until the coolant is cool to
avoid personal injury from scalding.
2.Release clip and disconnect hose from coolant
pump housing cover.
3.Remove 5 bolts securing housing cover.
4.Remove housing cover.
5.Remove coolant pump from housing.
6.Discard 3 sealing rings.
Refit
7.Clean coolant pump housing and mating faces.
8.Lubricate new sealing rings with Loctite 405 and
fit to coolant pump.
9.Fit coolant pump to housing.
10.Position housing cover, fit 5 bolts. Tighten to
25Nm
11.Connect hose to housing cover and tighten clip.
12.Refill cooling system.

26COOLING SYSTEM
2
REPAIR RADIATOR
Service repair no - 26.40.01
Remove
1.Disconnect battery negative lead.
WARNING: Do not carry out the next
instruction until the coolant is cool to
avoid personal injury from scalding.
2.Slacken clip and release bottom hose from
radiator, allow coolant to drain into a suitable
container
3.Slacken clip and release bottom hose from
radiator rail.
4.Slacken clip and release top hose from radiator.
5.Release air cleaner to throttle housing hose from
securing brackets.
6.Slacken clip and release bypass hose from
radiator.
7.Slacken clip and release top expansion hose
from radiator.
8.Remove 2 bolts securing radiator side support
brackets.
9.Collect L.H. support bracket and position R.H.
support bracket aside.
10.Slacken clip and release heater hose from
radiator rail.
11.Disconnect 2 multiplugs from cooling fan
assemblies.