1998 JAGUAR X308 crankshaft position sensor

Engine - Crankshaft Inner Sprocket3.2L NA V8 - AJ26
In-vehic
le Repair
Remov
a
l
S
p
ecial Tool(s)

Camshaft setting
3
03-
530

T
i
ming chain tensioning
303-532

Wedges, primary ch ain

303-533

Cranksha
ft setting
303-531
1. Open the engine compartment and fit paintwork protection
sheets.
2. Set the engine compartment cover to the service access
position.

3. Disc
onnect the batt
ery ground cable.
Re
move the battery cover.
4. Remove the Timing Cover. Re fer to Operation 12.65.01.
5. Raise the vehicle on a ramp.
6. Remove the crankshaft position sensor.
1. Remove the bolt which secures the crankshaft position sensor to the flywheel housing.

Remove the
sensor and allow
it to hang free under the
engine.
2. Remove the access grommet (for torque converter bolts) from the housing.
7. Install the damper securing bolt (old one) to the crankshaft,
hand-tight only.

8. R
otate the crankshaft until the triangular arrow indent on
the drive plate is visible thro ugh the access hole; confirm
that the timing flat on ea ch camshaft is uppermost.

9. Inst
all the crankshaft setting peg 303-531 to the crankshaft
position sensor location.
1. Install the crankshaft setting peg 303-531.
Position the crankshaft so that the settin
g peg engages
fully into the timing slot.
2. Install and tighten the bolt to secure the setting peg.
10. Remove the damper securing bolt from the crankshaft.
11. Lower the vehicle on the ramp.

12
.
Install the camshaft locking tool 303-530 to Bank 1
camshafts, aligning the shafts slightly as necessary.
13. Loosen the bolt which secures the sprocket to the exhaust
camshaft.

13. Tigh
ten the exhaust camshaft
sprocket securing bolt.
1. Install the chain tensioner tool 303-532 to the sprocket holes.
Appl y force
to the tool in an
anti-clockwise direction to
tension the chain on its drive side.
2. Whilst applying the opposing force to the sprocket and chain, tighten the sprock et securing bolt to 115-
125 Nm.

14 .
Tigh
ten the intake camshaft
sprocket securing bolt.
1. Whilst still applying the opposing force to the
sprocket and chain (using 303-532), check that the
wedges are still in place, ti ghten the securing bolt to
115-125 Nm.
R e
move the chain tensioning
tool and the wedge(s).
15. Remove the camshaft locking tool 303-530.
16. Raise the vehicle on the ramp.
17. Remove the crankshaft setting tool 303-531.

18 . Inst
all the crankshaft position sensor.
1. Install the sensor to the flywheel housing and install
the securing bolt. Tighten to 6-8 Nm.
2. Install the access grommet to the housing.
19. Lower the ramp.
20. Install the Timing Cover. Refer to Operation 12.65.01.
21. Move the engine compartment cover from the service position
and connect the gas struts.
22. Remove the paint protection sheets and close the cover.

2
. Release the carrier from
the two ring dowels and
remove it.

6. R
emove the seals from the bush carrier.
1. Remove the sealing ring (scarf jointed) from the
carrier bush groove.
2. Remove the O-ring from the carrier oil-way recess.
7. Raise the vehicle on a ramp.

8. R
emove the crankshaft position sensor.
1. Remove the bolt which secures the crankshaft position sensor to the flywheel housing.
Remove the
sensor and allow
it to hang free under the
engine.
2. Remove the access grommet (for torque converter bolts) from the housing.
9. Fit the damper securing bolt (old one) to the crankshaft, hand-
tight only.

10
.
Rotate the crankshaft until the triangular arrow indent on
the drive plate is visible thro ugh the access hole; confirm
that the timing flat on ea ch camshaft is uppermost.
11. Fit the crankshaft setting peg 303 - 531 to the crankshaft
position sensor location.

6. Tigh
ten the exhaust camshaft
sprocket securing bolt.
1. Fit the chain tensioner tool 303 - 532 to the sprocket holes.
Appl
y force to the tool in an
anti-clockwise direction to
tension the chain on its drive side.
2. Whilst applying the opposing force to the sprocket and chain, tighten the sprock et securing bolt to 115 -
125 Nm.

7. Tigh
ten the VVT unit securing bolt.
1. Whilst still applying the opposing force to the
sprocket and chain (using 303 - 532), check that the
wedges are still in place, tighten the VVT unit
securing bolt to 115 - 125 Nm.
R
emove the chain tensioning
tool and the wedge(s).
8. Remove the camshaft locking tool 303 - 530.
9. Raise the vehicle on the ramp.
10. Remove the crankshaft setting tool 303 - 531.

11
.
Refit the crankshaft position sensor.
1. Fit the sensor to the fl ywheel housing and fit the
securing bolt. Tighten to 8-12 Nm.
2. Refit the access grommet to the housing.
12. Lower the ramp.
13. Fit new seals to the VVT bush carrier.
1. Fit the new sealing ring (scarf jointed) to the carrier bush groove.

7.
Remove the coolant outlet pipe.
1. Remove the four bolts which secure the outlet pipe.
2. Remove the outlet pipe from the bypass hose and from the cylinder heads.
8. Remove and discard the sealing ring s from the outlet pipe grooves.

9.
Remove the nuts which secure the catalytic converter to the B-Bank
exhaust manifold flange.

10 . Re
move the VVT bush carrier.
1. Remove the two bolts and one nut which secure the carrier to the cylinder block.
2. Release the carrier from the two ring dowels and remove it.

11. R
emove the seals from the bush carrier.
1. Remove the sealing ring (scarf jointed) from the carrier bush groove.
2. Remove the O-ring from the carrier oil-way recess.
12. Raise the vehicle on a ramp.
13. Remove the crankshaft position sensor.

1
. Remove the bolt which secures the crankshaft position sensor to
the flywheel housing.
R
emove the sensor and allow it to hang free under the engine.
2. Remove the access grommet (for torque converter bolts) from the housing.
14. Install the damper securing bolt (old one) to the crankshaft, hand-tight
only.

15
.
Rotate the crankshaft until the triangular arrow indent on the drive plate is
visible through the access hole; confirm that the timing flat on each
camshaft is uppermost.

16
.
Install the crankshaft setting peg 3 03 - 531 to the crankshaft position
sensor location.
1. Install the crankshaft setting peg 303 - 531.
Position
the crankshaft so that the setting peg engages fully into the
timing slot.
2. Install and tighten the bolt to secure the setting peg.
17. Remove the damper securing bolt from the crankshaft.
18. Lower the vehicle on the ramp.

19
.
Install the camshaft locking tool 303 - 530 to the B-Bank camshafts,
aligning the shafts slightly as necessary.

20
.
Loosen the bolt which secures the sprocket to the camshaft.

30. U
se a wedge 303 - 533 (or two if required) between the primary chain
tensioner and tensioner blade, to ta ke up the slack in the chain, for
tightening the VVT unit and exhaust camshaft sprocket.

31 . C
AUTION: Make sure that a new bolt is installed.
Tighten the exhaust camshaft sprocket securing bolt. 1. Install the chain tensioner tool 303 - 532 to the sprocket holes.
Apply
force to the tool in an anti
-clockwise direction to tension the
chain on its drive side.
2. Whilst applying the opposing force to the sprocket and chain, tighten the sprocket securing bolt to 20 Nm +90°.

32 . C
AUTION: Make sure that a new bolt is installed.
Tighten the VVT unit securing bolt. 1. Whilst still applying the opposing force to the sprocket and chain (using 303 - 532), check that the wedges are still in place, tighten
the VVT unit securing bolt to 20Nm +90°.
Re
move the chain tensioning tool and the wedge(s).
33
. R
emove the camshaft locking tool 303 - 530.
34. Raise the vehicle on the ramp.
35. Remove the crankshaft setting tool 303 - 531.

36 . In
stall the crankshaft position sensor.
1. Install the sensor to the flywheel housing and install the securing bolt. Tighten to 10 Nm.
2. Install the access grommet to the housing.
37. Lower the ramp.
38. Install and tighten the nuts which secure the exhaust manifold to the