Discovery 2. Manual — part 100

COOLING SYSTEM - V8

ADJUSTMENTS 26-2-13

ADJUSTMENTS

Drain and refill

$% 26.10.01

WARNING: Since injury such as scalding could
be caused by escaping steam or coolant, do not
remove the filler cap from the coolant expansion
tank while the system is hot.

Drain

1. Visually check engine and cooling system for

signs of coolant leaks.

2. Examine hoses for signs of cracking, distortion

and security of connections.

3. Position drain tray to collect coolant.
4. Remove expansion tank filler cap.

LH side

RH side

5. Remove drain plugs from LH and RH sides of

cylinder block and allow cooling system to
drain.

6. Disconnect bottom hose from radiator and

allow cooling system to drain.

7. Disconnect top hose from thermostat and

position open end of hose below level of
coolant pump inlet, to allow coolant to drain
from the system.

Refill

1. Flush system with water under low pressure.

Do not use water under high pressure as it
could damage the radiator.

2. Apply Loctite 577 to cylinder block drain

plugs.Fit drain plugs to cylinder block and
tighten to 30 Nm (22 lbf.ft).

3. Connect bottom hose to radiator and top hose

to thermostat housing. Secure with hose clips.

4. Prepare coolant to required concentration.

+

CAPACITIES, FLUIDS,

LUBRICANTS AND SEALANTS, Anti-Freeze
Concentration.

COOLING SYSTEM - V8

26-2-14 ADJUSTMENTS

5. Release top hose from retaining lugs on the fan

cowl, leaving the hose to rest on the lugs.

6. Remove bleed screw from top hose.

l

'A' From 03 MY

l

'B' Up to 03 MY

7. Unclip the bleed hose from the battery box.
8. Remove expansion tank from its mounting

bracket. Slowly fill the expansion tank with
coolant, approx. 4 litres (7 pt).

9. Raise the expansion tank approx. 20 cm (8 in)

vertically, coolant will drain into the system.

10. Refill the coolant expansion tank until a steady

flow of coolant is emitted from the bleed hole.

11. Fit the bleed screw then, with the expansion

tank still raised, continue filling the system until
the coolant level reaches the base of the
expansion tank filler neck.

12. Fit expansion tank filler cap, fit the expansion

tank to its mountings and clip the bleed hose to
the battery box.

13. Refit the top hose into its lugs on the fan cowl.
14. Start and run engine until normal operating

temperature is reached, and check for leaks.

15. Switch off engine and allow to cool.
16. Check for leaks and top-up coolant to cold level

mark on expansion tank

COOLING SYSTEM - V8

REPAIRS 26-2-15

REPAIRS

Fan - viscous

$% 26.25.19

Remove

1. Release fixings and remove battery cover.
2. Disconnect battery earth lead.
3. Remove upper fan cowl.

4. Remove viscous fan using tool LRT-12-093

and tool LRT-12-094.

RH thread.

Refit

1. Position viscous fan and tighten using tool

LRT-12-093 and tool LRT-12-094.

2. Fit upper fan cowl.
3. Connect battery earth lead.
4. Fit battery cover and secure fixings.

Radiator

$% 26.40.01

Remove

1. Remove viscous fan.

+

COOLING SYSTEM - V8, REPAIRS,

Fan - viscous.

2. Drain cooling system.

+

COOLING SYSTEM - V8,

ADJUSTMENTS, Drain and refill.

3. Remove 2 screws and remove lower of fan

cowl.

4. Release clip and disconnect bottom hose from

thermostat housing.

5. Release clip and disconnect top hose from

radiator.

6. Remove clip and disconnect bleed hose from

radiator.

7. Remove front grille.

+

EXTERIOR FITTINGS, REPAIRS,

Grille - front - up to 03MY.

COOLING SYSTEM - V8

26-2-16 REPAIRS

8. Remove 6 scrivets and remove LH and RH air

deflectors from front panel. Disconnect
multiplug of gearbox oil temperature sensor
(arrowed).

9. Remove nut and move horn aside.

10. Remove 2 bolts securing radiator LH and RH

upper mounting brackets to body panel and
remove brackets.

11. Remove 4 screws securing air conditioning

condenser LH and RH upper mounting
brackets to condenser.

12. Remove brackets with rubber mounts from

radiator extension brackets.

13. Position absorbent cloth under each cooler

hose to collect oil spillage.

14. Push against coupling release rings and

disconnect hoses from gearbox oil cooler.

CAUTION: Always fit plugs to open
connections to prevent contamination.

15. If fitted: Push against coupling release rings

and disconnect hoses from engine oil cooler.