1994 JAGUAR XJ6 engine

gg Jacking, lifting & Vehicle Recovery
2.2.4 Transporting
If thevehicle is being transported on a trailer or flatbed transporter (Fig. I), the handbrake must be applied, the wheels
chocked and if fitted with an automatic transmission, the gear selector lever moved to neutral, 'N' (see Gear-shift
Interlock).
e
JOS-031
Fig. 1
CAUTION: Do not select 'P' because the parking lock mechanism may be damaged by the continuous slight forward
and backward movement of the vehicle on the transporter.
There are four tie-down brackets on the vehicle underbody. Do not attach the tie down hooks of the transporter to the
towing eyes of the vehicle.
2.2.5 Towing Recovery
Adhereto local regulationsforthetowing ofvehicles. In certain countriesthe registration number ofthetowing vehicle
and an 'ON TOW sign or warning triangle must be displayed in a prominent position at the rear of the vehicle which
is being towed.
WARNING: WHEN THE ENGINE
IS NOT RUNNING, THE STEERING AND BRAKES WILL NO LONGER BE
ACCUMULATOR. THEREFORE, BE PREPARED FOR
HEAVY STEERING AND THE NEED FOR GREATLY
INCREASED BRAKE PEDAL PRESSURE.
POWER-ASSISTED.
APPLICATIONS
OF THE BRAKE PEDAL WILL GRADUALLY DEPRESSURIZE THE
*The vehicle may be towed by another for a SHORT DISTANCE ONLY (maximum
0,8km / O.Smile), with the gear lever
in neutral (N) provided that a speed of 48 km / h (30 mile / h) is not exceeded.
2.2.6
The vehicle must be towed with the rear wheels clear of the ground, see suspended towing.
Vehicles with Defective Automatic Transmission:
Issue 1 August 1994 4 X300 VSM

Engine (AJ16) I=
SECTION CONTENTS
Sub-section Tide
I to 111 . . . . . . . . . . . . Preliminary Pages . . . . . . . . . . . . . . . . . . . .
3.1.1 . . . . . . . . . . . . . Engine, General.. . . . . . . . . . . . . . . . . . . . .
3.1.2.. . . . . . . . . . . . Engine/ Transmission Unit, Renew.. . . . .
3.1.3 . . . . . . . . . . . . . Engine Oil, Renew . . . . . . . . . . . . . . . . . . .
3.1.4 . . . . . . . . . . . . Oil Filter Canister, Renew . . . . . . . . . . . . .
3.1.5 . . . . . . . . . . . . Front Engine Mounting Bracket Assembly,
3.1.6 . . . . . . . . . . . . Rear Engine Mounting Assembly, Renew .
X300 VSM
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Renew .
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SRO
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. 12.41. 02/20 ......
. 12.60.00 .........
. 12.60.04 .........
. 12.45.01 LH
12.45.03 RH.. . . . .
.
12.45.04 .........
Issue 1
R
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2 ...
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...I 3
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August 1994

Engine (AJ16)
Description
Camshaft timing tool
TOOLS & EQUIPMENT
Not- Illustration I JaguarNumber
L L
11. TORQUE TIGHTENING SPECIFICATIONS
not illustrated YA 992
Fixing
Air Cleaner
Air box bracket screw
Air box to bracket
Air box to instrumount
Air cleaner bracket setscrew
Air cleaner support bracket
(4,O liter, supercharged)
Air meter to intake gaiter
(4,O liter, supercharged)
Air temperature sensor to air box
Hose clamp, air box to air meter
Hose clamp, air box to body
Instrument bracket Taptite screw
Trumpet to body
Air Conditioning Compressor Mounting
Belt tensioner assembly to compressor bracket
Compressor bracket to cylinder block
Compressor to bracket
Idler pulley to tensioner assembly
Cooling System
Bypass elbow to thermostat housing
Fan drive unit setscrew
lightening Torque
(Nm)
8,5 - 11,5
9,5 - 12,5
9,5 - 12,5
6,3 - 8,7
8,5- 11,5
1,2 - 1,6
7
-9
1.2
- 1,6
1,2
- 1,6
9,5
- 12,5
9,5 - 12,5
22 - 28
22
- 28
22
- 28
22
- 28
9.5
- 12,5
12 - 16
Front pulley lock
fi
Engine lifting bracket
fi
Engine support beam
fl
'Snap-On' Oil filter
canister removal tool
Issue 1 August 1994 ii X300 VSM

Engine (AJ16) 1-
Fixing lightening Torque
(Nm)
Cooling System
(continued)
Fan drive unit to pulley
Hose clamp, breather to thermostat
Hose clamp, breather to throttle body
Hose clamp, bypass hose
Hose clamp, water pump to pipe
Thermostat cover to housing
Thermostat to cylinder head
Water pipe bracket to inlet manifold 21,5 - 28.5
1,5
- 2,5
1,5
- 2,5
2,5
- 3,5
2,5
- 3,5
2 1,5
- 28,5
21.5 - 28,5
21,5 - 28,5
Water pump assembly
Water pump to timing cover 21,5 - 28,5
21,5 - 28,5
Water pump to water rail 2,5 - 3,5
Water rail to cylinder block
X300 VSM iii Issue 1 August 1994
21,5 - 28,5
@
Water temperature sensor to thermostat housing
Water temperature transmitter to thermostat housing 14,5 - 19,5
14,5 - 19,5
44,5 - 59,5
Engine Mounting
*Engine mounting bracket screw
' Exhaust Manifold
Exhaust manifold to cylinder head
Heatshield to exhaust manifold
Lifting eye setscrew (slave item only) 44,5 - 59,5
21,5 - 28,5
21,5 - 28,5
Miscellaneous Hoses
Hose clamp, heater return hose to throttle body
Hose clamp, hose to cam cover
Hose clamp, water pump
Oil Cooler (4,O liter supercharged)
Hose clamp, oil cooler hose to radiator cradle
Oil cooler clamp screw
5-7
Oil cooler pipe bracket screw
Oil cooler pipes to engine
Oil cooler to body
Tube nut,
all except those shown below
Tube nut, transmission pipes to transmission
1,5 - 2,5
2,5
- 3.5
2,5
- 3,5
7
- 10
1,5
- 2.5
14
- 18
17
-23
17
- 23
16
- 20
Oil Pump, Filter & Oil Pan
Drain plug 64,8 - 79,2
Filter head to cylinder block 21,5 - 28,5
Oil filter cartridge 12 - 15
Oil pan to cylinder block 21,5 - 28.5
Oil pan to timing cover 21,5 - 28,5
Oil pump and oil pump carrier to cylinder block 21,5 - 28.5
Rear cover to body 9,5 - 12,5
Relief valve plug 35,7 - 48,3
Supercharger
Adapter to timing cover
Air duct clamp to intercooler
Air duct hoses
Air duct lower to intercooler 22 - 28
2,5
- 3,5
2,5
- 3,5
2,5
- 3,5

Idler bracket / timing cover to cylinder black
Idler bracket to water pump
Idler mounting bracket to thermostat housing
lntercooler water pipes
Outlet elbow to supercharger
Pulley to carrier 22 - 28
22
- 28
22
- 28
22
- 28
22
- 28
22
- 28
43
- 57
22
- 28
43
- 57
22
- 28
22
- 28
8,5
- 11,5
Supercharger mounting bracket to engine
Supercharger to mounting bracket
Supercharger
mounting stud
Tensioner bracket
/ timing cover to cylinder block
Tensioner bracket to adapter
Throttle bodv adapter to
bypass actuator
Engine (AJ16)
Fixing lightening Torque
Supercharger (continued)
Air duct upper casting to lower
Bypass valve disc to spindle
Bypass
mlve to throttle body
Elbow to intercooler
2,5 - 3,5
2.5
- 3,5
8,5
- 11,5
22 - 28 ~~ ~
111.
SERVICE MATERIALS
Description USOS Notea 1 I I Hylosil 102 sealant 1 Half moon seals to cylinder head I I Oil pick-up strainer to transfer housing I 1 Oil pump transfer housing to cylinder block 1
[ Rear seal housing to cylinder block , [Thermostat housing to extension , I Thermostat outer housing to inner housing 1 , [Timing cover blanking plate to timing cover 1 I I Timing cover to cylinder block
I Locktite 501 locking compound I Oil pump drive plate bolt
,
,
I Oil pump front cover to body 1
I Oil pump rear cover to body
I Exhaust system joints
Tivoli Kay Adhesives No. 5696
sealant
X300 VSM Issue 1 August 1994 iv

3.1.1 ENGINE, GENERAL
The 3.2 /4,0 liter normallv aspirated
and the 4.0
Engine (AJ16)
liter supercharged engined vehicles are equipped with the AJ 16family of six cylinder in-line engines. The engines have a fully mapped engine management system with digital ignition and
individual on-plug ignition coils.
This section describes the service procedures to be carried out with the engine in situ.
It also covers the renewal of the engine / transmission unit.
For information relating to strip
-down, inspection, fault diagnosis, renovation and rebuild work, refer to the AJ16
Engine Service Manual.
X300 VSM 1 Issue 1 August 1994

Engine (AJ16)
3.1.2 ENGlNE/ TRANSMlSSlON UN/& RENEW
SRO 12.41.02/20
The engine/transmission unit on the AJ 16 normally aspirated and supercharged engined vehicles are fitted ontothree
engine mounting/bracket assemblies. The two front engine mountings for the 3.2/4.0 liter normally aspirated and the
4.0 liter supercharged engined vehicles are identical. They are fitted to the front crossmember on either side of the
engine bay. Rubber to metal
engine/transmission rear mounts used for both engine types, are secured to a support
bracket which traverses the two body underframe longitudinal members. For access to remove the engine carry out the following procedures:
WARNING: WHEN WORKING WlTHlN THE ENGINE COMPARTMENT, KEEP CLEAR OF THE RADIATOR COOLING
FANS AS THEY COULD START WITHOUT WARNING EVEN IF THE ENGINE IS NOT RUNNING.
. Remove the hood, see SRO 76.16.01, section 13
. Remove the air cleaner assembly.
. Depressurize the fuel system, see SRO 19.50.02, section 5.1.
Disconnect the battery.
. In line with the relevant SRO's and sections, remove all appropriate obstructing parts, including their fixing and
. Disconnect all mechanical and isolate all electrical linkages leading to and from the engine.
. De-gas the airconditioning system, see section 14, Charge Recovery (System depressurization).
mounting
arrangements.
CAUTION : Do not vent refrigerant directly to the atmosphere and always use Jaguar approved recovery/recycle/re- charge equipment.
. Drain the engine oil, see 3.1.3 this section.
. Drain the coolant, see SRO 26.10.01, section 4.1.
WARNING: DO NOT REMOVE THE HEADER TANK PRESSURE CAP WHILE THE ENGINE IS HOT. IF THE CAP MUST
BE REMOVED, PROTECT THE HANDS AGAINST ESCAPING STEAM AND SLOWLY TURN THE CAP ANTI- CLOCKWISE UNTILTHE EXCESS PRESSURE CAN ESCAPE. LEAVETHE CAP IN THIS POSITION UNTIL ALL
STEAM AND PRESSURE HAS ESCAPED AND THEN REMOVE THE CAP COMPLETELY.
Before lifting the complete engine/transmission unit with an engine hoist from the engine bay, ensure that two engine
lifting brackets (tool 18G. 1465) are secured equally spaced to the inlet manifold studs. The engine lifting brackets
should be positioned towards the front and the rear of the assembly. Ensure the front of the vehicle is jacked
up secure- ly on stands when removing the assembly.
e
0
0
X300 VSM Issue 1 August 1994 2

Engine
3.1.3 ENGINE OIL, RENEW
SRO 12.60.00
. Undo and remove the sump plug positioned at the rear of
the sump, drain the engine oil into a suitable receptacle
and dispose of
it in a safe and environmentally friendly
manner.
Replenish the engine oil, to the correct level on the dip-
stick (see Fig. 1).
When the oil is renewed, start the engine, wait for the oil
light to extinguish and switch off the engine for 30 sec- onds.
. Finally remove and wipe clean the dip stick,
check the oil level - replenish if necessary.
. For recommended engine oil refer to Appendix AI.
3.1.4 OIL FILTER CARTRIDGE, RENEW
SRO 12.60.04
The white oil filter cartridge displaying the Jaguar logo, is lo- cated on the left-hand side of the engine below the throttle
assembly (Fig. 2).
When refitting, tighten the oil filter cartridge using hand
pressure only.
On no account use an oil filter strap designed
forthe removal
of cartridges.
m: The normal tightening torque of the oil filter is a 3/8 to 1/2 turn after initial contact.
1 JLX-076
Fig. 1
-~ ~ ~~~~~ Issue 1 August 1994 X300 VSM 3