weight JAGUAR XJ6 1994 2.G Workshop Manual

Introduction
.OSSARY OF TERMS
Term(s)
Crankshaft Position
Crankshaft Position Sensor
Crankshaft Position
liming Ring
Crankcase Ventilation System
cubic centimeters
curb weight
4 Control
CKP
CKPS
CKPTR
cv
cm3
Control Module
P
T Abbreviation (if applicable)
CM
cylinder sleeve, sleeve
I I
Definition
a means or device to direct and regulate a process or guide the operation of a machine,
apparatus or system
a self-contained group of
electrical/electronic components, designed
as a single replaceable unit, and controlling
one or more processes as above
flexible, usually fabric, roof of an open
(convertible) vehicle
shaft, carrying pinions, running parallel to
the mainshaft in
a transmission unit
split pin which is used as
a locking device for
a castellated nut, etc.
generates crankshaft position information in
conjunction with the CKPTR (also generates
speed information in certain applications)
toothed ring which triggers the CKPS
system which scavenges camshaft cover and
crankcase emissions and feeds them into the
inlet manifold.
weight of vehicle with fuel, lubricants and
coolant, but excluding driver, passengers or
payload
thin
-walled, hard metal cylinder inserted into
the cylinder block of an engine, and in which
the piston runs
Previously used
term(s) (or Eng.
lish Eauivalent)
hood,
convertible hood
layshaft
split pin,
cotter pin
cubic
centimetres kerb weight
cylinder liner ~ ~~
Issue 1 August 1994 10 X300 VSM

Engine (AJ16)
3.1.5 FRONT ENGINEMOUNTING BRACKETASSEMBLY, RENEW
SRO 12.45.01 LH
SRO 12.45.03 RH
Each of the two engine mounting bracket assemblies com- prises a mounting rubber (1 Fig. 1) with an insulator (2 Fig.
1) clamped between two brackets ( 3&4 Fig. I).
The front of the engine complete with attached mounting
bracket assemblies is seated on support brackets welded to
the front crossmember and is secured to the brackets by
a single fixing arrangement comprising nuts, bolts and
washers.
. Jack up the vehicle and secure the engine hoist (Service
Tool MS53 C) to lifting eyes of the front engine lifting
brackets.
. Remove the front engine mounting bracket assembly to
front crossmember fixing screws. These can be accessed
via
two round openings positioned underneath the cross- member.
= Remove any obstructing parts preventing the front end of
the engine from being lifted from its seating.
Lift the front end of the engine / transmission unit slightly
and detach the front mounting bracket assemblies from
the lower engine housing.
3.1.6
SRO 12.45.04 REAR
ENGINE MOUNTING ASSEMBLY RENEW
The rear engine mounting assembly comprises a rubber to
metal engine/transmission rear mount (1 Fig. 2) secured to a support bracket (2 Fig. 2) by a single fixing arrangement.
. With the aid of the engine hoist (Service Tool MS53 C) se- cured to the lifting eyes of the rear engine lifting brackets,
and a jack positioned under the rear mounting bracket,
take the weight of the engine.
. Undo and remove the fixing arrangement securing the
rear engine mounting bracket assembly.
. Lower the jack and remove assembly.
. Dismantle the assembly, clean all components and exam- ine for any signs of wear or damage.
Renew components as necessary.
J12-8LL
Fig. 1
J 12- 8 LS
Fig. 2
8
Issue 1 August 1994 4 X300 VSM

Engine (V12)
3.2.7 REAR ENGINEMOUNTlNGASSEMBLY, RENEW
SRO
12.45.04
The rear engine mounting assembly (Fig. 1) comprises a
mounting bracket and spring assembly, secured to body un- derframe longitudinal members using nuts and washers.
With the aid of the engine hoist (Service Tool MS53 C) se- cured to the lifting eyes of the rear engine lifting brackets,
and a jack positioned underthe rear mounting brackettake
the weight of the engine.
. Undo and remove the mounting bracket and spring as-
sembly fixing arrangement.
rn Lower the jack and remove assembly.
Dismantle the assembly, clean all components and exam-
ine for any signs of wear or damage.
Renew components as necessary.
8 112-8'7
Fig. 1
I Issue 1 August 1994 X300 VSM 5

Manual Transmission & Clutch (AJ16)
7.1.2 MANUAL TRANSMISSION ASSEMBLY, RENEW
SRO 37.20.01
. Disconnect the battery.
. Remove inlet manifold rear securing nuts.
. Remove injector harness mounting bracket.
. Fit lifting bracket 18G 1465 and secure with the nuts.
. Fit Service Tool MS 536 (Fig. 1) across the wing channels
Fit and engage retaining hook.
. Tighten hook nut to take weight of engine.
. Disconnect lambda sensor block connectors.
. Remove the exhaust front pipe to the intermediate pipe
securing nut / bolt.
. Remove the front pipe to manifold securing nuts and
remove the front pipe assembly.
. Carefully ease exhaust system down for access.
Remove the drive (propeller) shaft assembly, see Section
. Fit blanking plug to rear of transmission.
. Remove clutch slave cylinder complete with push rod
Disconnect transmission switch multi-way connector and
. Place jack in position beneath the transmission.
. Take weight on the jack, and remove rear mounting to
. Lower jack and remove rear mounting assembly.
Remove jack and jacking channel.
. Remove mounting spring and spring mounting rubber.
. From above: undo retaining hook nut to lower rear of
transmission (do not allow engine to foul steering rack).
. From below: remove selector shaft yoke securing nut / bolt (3 Fig. 2).
. Disconnect selector shaft yoke from lower gearshift lever
and remove wavy washer.
. Remove gear selector remote control securing bolts (1 Fig. 2).
. Remove mounting rubbers and washers (2 Fig. 2).
. Reposition remote control assembly for access.
. Remove transmission-to-engine adaptor plate securing
and
align to rear lifting bracket.
9, SRO 47.15.01.
from bell housing and secure clear.
secure clear.
body securing bolts.
bolts
(1 Fig. 3).
N.&: Leave two opposing bolts in for safety.
Fig. 1
Fig.
2
Fig. 3 ~ ~ ~~ ~
Issue 1 August 1994 2 X300 VSM

Manual Transmission & Clutch (AJ16)
. Remove front clamp from unit lift.
. Raise / lower unit with jack, no stands.
. Traverse lift under ramp and take weight of transmission.
. Adjust jacking platform angles to suit transmission.
. Adjust side and rear clamps to suit transmission and tighten clamp wing nuts.
. Fit the safety chain assembly to left hand arm of lift, and secure with peg.
Pass safety chain over transmission and engage in front arm of lift. Tighten the safety chain adjuster.
. Remove remaining transmission to adaptor plate securing bolts and carefully lower transmission from engine.
. Remove transmission from ramp area.
. Remove clutch release bearing assembly from release lever.
. Remove clutch release lever retaining clip and remove lever.
. Remove release lever pivot pin.
Remove transmission switch.
. Remove rear mounting spring retainer securing nut.
. Reposition selector shaft pin cover.
0
Remove rear mounting spring retainer and remove rear mounting assembly.
Remove selector shaft yoke to selector shaft retaining pin and remove the yoke.
. Remove slave cylinder securing studs.
. Remove the transmission from the unit lift.
. Remove transmission drain plug and allow to drain, refit
the drain plug.
Fit new transmission to unit lift.
Fill transmission with oil and refit the level plug.
. Clean components and mating faces.
. Fit the slave cylinder mounting studs.
. Lubricate the selector output shaft.
. Fit selector shaft yoke (3 Fig. 1) to selector shaft and secure
with retaining pin (2 Fig. 1).
Reposition the retaining cover (1 Fig. 1) over the selector
shaft yoke retaining pin. -
. Fit the transmission rear mounting assembly and secure
with bolt.
. Fit reverse lamp switch.
. Lubricate the clutch release lever.
. Fit and align lever to transmission and engage onto pivot
pin.
Fit and fully seat lever to pivot retaining clip.
= Lubricate release bearing housing.
9 Fit and fully seat bearing assembly to lever.
. Select third gear.
. Move transmission to vehicle and raise into position.
Fia. 1
. Insert transmission input shaft into clutch and fully seat transmission against adaptor plate, ensuring that trans- mission is in line as it is fitted and seated to the plate.
X300 VSM 3 Issue 1 August 1994

Manual Transmission & Clutch (AJ16)
GEARSHIFT LEVER KNOB, RENEW
:RY 37.16.11
. Displace the gearshift lever gaiter for access and slacken
the gearshift lever knob lock nut (1 Fig. 1) and remove the
gearshift lever knob
(2 Fig. 1).
- Fit the new gearshift lever knob and align to its final posi- tion.
. Tighten the lock nut and reposition the gearshift lever
gaiter.
7.1.8 GEARSHIFT LEVER/ REMOTE CONTROL
ASSEMBLY, RENEW
SRO 37.16.20
. Disconnect the battery.
. Remove inlet manifold rear securing nuts.
. Fit lifting bracket 18G 1465 and secure with the nuts.
. Fit Service Tool MS 538 (Fig. 2) across the wing channels
and align to rear lifting bracket.
Fit and engage retaining hook.
. Tighten hook nut to take weight of engine.
Select third gear and remove the gearshift lever knob.
. Disconnect lambda sensor block connectors.
Remove the exhaust front pipe to the intermediate pipe
securing nut / bolt.
. Remove the sealing olive.
. Take the weight of the rear engine mounting using a jack,
. Remove the rear mounting securing bolts.
. Lower and remove the rear mounting assembly.
Carefully ease exhaust system down for access.
jack channel
and a suitable block.
. Remove the drive (propeller) shaft assembly, see Section 9, SRO 47.15.01.
. From above: undo retaining hook nut to lower rear of
transmission (do not allow engine to foul steering rack).
From below: slacken but do not remove the selector shaft
bolt
(3 Fig. 3).
. Remove the gear selector remote control securing bolts (1 Fig. 1) and reposition for access.
Finally remove the selector shaft bolt (3 Fig. 3).
. Remove the gear selector remote control assembly from
the selector shaft.
b: To aid removal, invert the gear selector remote con- trol assembly, i.e. gearshift lever pointing down- wards.
2
Fig. 1
Fig. 2
Fig. 3
X300 VSM 7 Issue 1 August 1994

Manual Transmission & Clutch (AJ16)
'ossible Cause
:Iutch Fault
'rimary pinion bear-
ng
ncorrect fitting nethod
Clutch Fault Diagnosis
Check
Check for worn clutch driven plate
hub splines
Check for wear in bearing
Damage may be caused by
acci- dental loading during fitting
Symptom
:I utch knocks
herloading vehicle
hiving with
left foot
,esting on clutch )edal
:ractured clutch )late
Check mating components for
damage
Refer to owners handbook for per
-
missible load details
Check as described under 'slipping
clutch'
Excessive
lining wear
lperating mechan-
sm faulty
:Iutch unit faults
3rabbing clutch
harsh engagement
'rom standing start,
Iften followed by clutch
udder) Check
operating mechanism for
wear and binding which usually
indicates
a binding withdrawal
race thrust bearing
Check pedal for sticking parts in
-
cluding return spring
Check for oil on friction driven
plate
Checkclutch plate and flywheel for
wear. Check flywheel
runout. Check also for glazing on driven
plate linings
Check for driven plate hub splines
sticking on pinion shaft.
Check pinion shaft for wear.
Check for broken or weak pressure
springs.
Check torque damper springs in
clutch driven
plate
hgine mounting Check
for damaged or deteriorated
engine mountings.
Check fixings for tightness
Remedy
Renew driven plate
Renew as necessary
Always support trans
- mission weight during fitting
Renew driven plate
Fit replacement clutch as-
sembly
Fit replacement clutch as- sembly
Free
off bearing. Renew as
necessary
Free
off pedal and check for
damaged and distorted
parts.
Renew
if necessary
Clean
off cover.
Renew faces.
Rectify oil
leak
Reclaim or renew as appli-
cable
Free driven plate, and check
for wear and distortion
Renew
if necessary
Renew
if necessary
Issue 1 August 1994 12 X300 VSM

Clutch Fault Diagnosis
Symptom
Slipping clutch
[indicated by vehicle
speed not responding to
engine speed increase)
]ragging or spinning :lutch
Manual Transmission & Clutch (AJ16)
Possible Cause
Poor driving tech- nique
Operating mechan
-
ism faulty
Clutch unit faults
Operating mechan
-
ism faulty
Zlutch unit faults
2lutch unit faults
Check
Ensure that none of the remedy
conditions prevail
Checkfor binding withdrawal lever
Check for binding of clutch pedal
movement components
Check for oil on friction faces
Check for binding withdrawal lever
Check for binding of clutch pedal
movement components
Check for oil on friction faces
Check for broken or weak pressure
springs
.-
Check clutch plates and flywheel
for wear and distortion
Check clutch driven plate for frac
- tures and distortion.
Damage may be caused by acci
-
dental loading during assembly of
transmission to engine.
Always support transmission
weight during refitting
Check for primary pinion bearing
seized
Check clutch driven hub for bind
- ing on primary pinion splines.
Check for too thick friction linings.
Ensure linings
are good
Check for foreign matter in clutch
unit
Remedv
Do not increase engine speed
with clutch paGially' en-
gaged. Do not drive with left foot
resting on clutch pedal.
Free lever and check for wear
and distortion
Free
off seized or binding
components
Clean
off metal faces.
Renew driven plate.
Rectify oil leak.
Free lever and check for wear
and distortion
Free
off seized or binding
components
Clean
off metal faces.
Renew driven plate.
Rectify oil leaks.
Renew cover as necessary
Reclaim or renewclutch
plate
as applicable
Renew driven plate and
check mating components
for damage
Rectify or renew as necess
-
ary
Renew as necessary
Clean and renew compo
-
nents as necessary
X300 VSM 13 Issue 1 August 1994

Manual Transmission & Clutch (AJ16) IBh
7.1.14 ClUTCHASSEMBLY, RENEW
SRO 33.10.01
. Remove the rear inlet manifold securing nuts and
. Fit lifting eye 18G 1465 to rear inlet manifold studs and
rn Fit Service Tool MS 538 (Fig. 1) and take the weight of the
. Disconnect the exhaust system from the front pipe.
. Ease the exhaust system down for access and remove
. Remove the drive (propeller) shaft assembly and fit a
. Remove the exhaust front pipe assembly.
. Remove the clutch slave cylinder, see Sub-Section 7.1.16,
and secure the slave cylinder to one side.
. Disconnect the transmission switch connectors.
. Removethe rear mounting assembly, see Section3.1, SRO 12.45.04.
. Undothe hooknutofServiceTool MS53Btolowertherear of the transmission / engine assembly.
Disconnect the gearshift/selector shaft universal joint se-
curing nut / bolt, remove the wavy washer from the selec- tor and remove the bolts securing the remote control.
Remove the mounting rubbers and washers.
Remove the transmission switch for access to the upper
. Remove the transmission to engine adaptor plate secur-
theinjector harness mounting bracket.
tighten securing nuts.
engine with the hook.
heatshield.
blanking plug to the rear of the transmission.
right hand transmission
/ bell housing securing bolt.
ing bolts
(1 Fig. 2).
Leave two opposing bolts in place for safety.
m . Fit a suitable hoist, securely to the transmission.
= Take the weight of the transmission and remove the re-
. Remove the transmission from the rear of the engine.
. Lower the transmission and remove from the rear of the
. Hold the flywheel in one position and remove the bolts se-
maining two securing bolts.
engine.
curing the clutch cover to the flywheel.
CAUTION: Make a note of the position of any balance
weights relative to the clutch cover.
. Remove the balance weights.
Remove the clutch cover / drive plate assembly.
. Remove the eight securing bolts (1 Fig. 3) and remove the
flywheel (2 Fig. 3).
WARNING: THE TWIN-MASS FLYWHEEL IS EXTREMELY HEAVY. ASSISTANCE MAY BE REQUIRED DUR- ING REMOVAL.
Clean the face of the flywheel and dowels.
Fig. 1
Fig. 2
Fig. 3
X300 VSM Issue 1 August 1994 14

Manual Transmission & Clutch (AJ16)
. Check the flywheel face for scoring; should this be excess-
Fit a new spigot bearing to the flywheel (2 Fig. 1).
. Refit the flywheel to the crankshaft and tighten the secur-
. Fit the clutch assembly to the flywheel ensuring that the
. Align the clutch with an input shaft.
. Fit the balance weights to the clutch cover and tighten the
. Remove the input shaft.
ive,
skim within tolerance.
ing bolts (1
Fig. 1).
larger, rounded boss faces the flywheel.
securing bolts. Remove the circlip
(1 Fig. 2) securing the clutch release
arm to the pivot and remove the assembly (2 Fig. 2).
. Slacken and remove the release arm pivot pin.
. Remove the bearing (3 Fig. 2) from the release arm assem- bly (2 Fig. 21, grease the bearing seat, fit the new bearing
to the release arm assembly.
Re-assemble the release arm ensuring that the pivots are
greased.
. Select third forward gear.
. Move the transmission under the ramp and raise it into
position against the adaptor plate and secure with the
bolts.
. Remove the securing chain from the unit lift and fit front
clamp.
. Refit the transmission switch and fit the multi-plug into
the securing clip.
. Refit the clutch slave cylinder, see 33.35 01.
. Fit the mounting rubbers and spacers, reconnect the re-
. Refit the selector to the gearshift lever.
. Refit the exhaust front pipes to the manifold.
. Remove the blanking plug from the rear of the trans-
. Refit the drive (propeller) shaft.
. Refit the heat shield and reconnect the exhaust system.
. Lower the ramp.
. Remove the Service Tool MS 53B.
. Remove the engine lifting eye 18G 1465.
= Refit the injector harness mounting bracket and tighten
the rear inlet manifold securing nuts.
mote control.
mission.
Fig. 2
Issue 1 August 1994 X300 VSM 15
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