1994 JAGUAR XJ6 radiator

Body Components & Trim a
13.5 HOOD
13.5.1 Hood, Description
The hood is fitted with black moulded covers over the inner fenders and behind the headlamp units; the right hand
fender cover incorporates compartments for spare fuses and tool kit (where fitted). Two gas struts attached by press- on fittings on the body and hood support the hood cover.
13.5.2 Plenum Chamber Finisher, Renew
SRO 76.10.01
9 Open the hood and fit suitable fender cover.
. Remove the wiper arm, see section 15.6.
. Undo and remove the plenum chamber finis..er securing
. Displace and reposition the plenum chamber.
. Disconnect the washer jet tubes.
9 Disconnect the washer jet multi-plugs.
. Displace the washer jet securing tangs.
. Displace and remove the washer jets (2 Fig. 1).
. Place the finisher aside.
. Fit and fully seat the washer jets to the new plenum
. Connect the washer jet multi-plugs.
9 Reconnect the washer jet tubes.
. Position the plenum chamber finisher.
. Fit and tighten the finisher securing screws.
. Refit the wiper arm.
9 Remove the fender cover and close the hood.
screws
(1 Fig. 1).
chamber
finisher.
13.5.3 Hinge, Renew
. Disconnect vehicle battery ground lead.
. Open hood and fit fender protectors.
. Remove radiator grille.
. 12 cylinder only:
. Remove fan cowl to top panel clips and move the cowl as-
sembly clear.
. Move water bleed pipe from top panel clips.
. Release fixings and remove radiator top mounting panel.
. Remove hinge securing nuts RH or LH (ground lead on the
CAUTION: Ensure that the hood cover is adequately sup- ported and that paint damage cannot occur.
. Remove hinge bolts RH or LH, noting the position of the
ground lead on the left hand side.
. To refit, carry out reversal of the above procedure, ensur- ing that the hood should be fully aligned before finally
torque tightening the fixings.
left
hand side).
I
0
Fig. 1
X300 VSM Issue 1 August 1994 42

Climate Control Systems
14.4 TEMPERATURE CONTROL
14.4.1 Coolant Circuit
The main coolant system supplies liquid at engine temperature to the heater matrix to provide heat to the vehicle
interior. Unlike previous air blend / constant matrix temperature systems, in-car temperature is now controlled by
mixing recirculated coolant in the heater circuit with engine-temperature coolant. Matrix temperature is controlled
by a valve which opens to raise temperature (admit engine coolant) and closes to reduce it (recirculates coolant within
the circuit). The coolant flow valve operates on a six (6) second 'duty cycle', during which it may be open for whatever
period thecontrol system dictates. FACEvent airtemperature of howeveriscontrolled bythe'cool air by-passdamper'
which allows incoming air to flow around the top of the the heater matrix and thus remain unheated.
Because the engine coolant pump is driven proportionally to engine speed, the coolant delivery rate changes with
engine revolutions thus causing temperature variations. To stabilize the flow through the matrix, and thus the
temperature, an electrically driven circulation pump has been introduced into the system.
1
1. Engine 2. Coolant flow valve 3. Circulation pump
4. Heater matrix
5. Bottom hose
6. Engine cooling system radiator
Fig.
1 Coolant circuit, schematic view
Issue 1 August 1994 6 X300 VSM

SPECIFICATION - 1995 MODEL YEAR VEHICLES
Engine See relevant engine service manual
Engine Management System
VI2 ............................................................... Nippondenso
6cyl. .............................................................. LucasGEMS
Cooling System
Water pump
type
............................................................... Centrifugal
Cooling fans
- 6 cyl. ................................................ Two electric fans controlled by
Cooling fans
- VI2 ................................................. One engine driven fan and two
Cooling system control
............................................. Thermostat (two on V12)
Thermostat opening temperature .................................... 88OC
Fully open at ....................................................... 93,5 to 96OC
Filler cap pressure rating ........................................... 1,2 bar
drive
.............................................................. Belt
temperature sensor in radiator
electric fans controlled by
temperature sensor
in radiator
Fuel System Pump
one fitted on 6 cyl. (3.2 Liter and 4.0 Liter normally aspirated)
two fitted on 6
cyl. (4.0 Liter supercharged) and VI2
Electrical, module type, fitted in the tank. Integral 70 micron filter.
Make
.............................................................. Nippondenso
Fuel pressure (nominal)
............................................ 3,O bar
Second
pump switches at:
Pump
type
......................................................... Regenerative turbine
Fuel pressure (supercharged)
....................................... 3,7 bar max.
4.0 Liter supercharged ........................................... in at 4000 RPM
out at 3200 RPM
VI2 ............................................................ load sensitiveswitching
Clutch
Plate diameter .....................................................
Clutch hydraulic fluid ............................................... DOT 4
280mm single plate, LUK
Manual Transmission Ratios (Gefragl
First gear .......................................................... 3,553:l
Second gear ....................................................... 2,041: 1
Third gear ......................................................... 1,400 : 1
Fourth gear
........................................................ 1,000 : 1
Fifth gear
.......................................................... 0,755:l
Reverse ........................................................... 3,553: 1
Issue 1 August 1994 X300 VSM AI-95MY 1

Routine Maintenance
Service intervals
Check power steering system for leaks and hydraulic
pipes
/ unions for chafing /corrosion
Check Cooling
/ heating system for leaks / security
Check visually hydraulic hoses
/ pipes / unions for
leaks
/ chafing / cracks / corrosion
Check condition of steering rack joint covers
Check speed control vacuum hoses for security and
general condition
Grease door check
-arm side edges
Check parking brake cable adjustment
Miles (X 1000)
7.5 15
X X
xx
xx
xx
xx
X
xx
xxxxxx
xxxxxx
x
X X X
xxxxxx
X X X
xxxxxx
XIX x x x
-
Clean out radiator matrix and condenser (where fitted)
to remove dirt accumulation
Clean antenna mast
xx
Carry out road / roller test Ix
i
0
0
0
X
x
issue 1 August 1994 A2-95MY 6 X300 VSM