1998 JAGUAR X308 ECU

Engine - Secondary Timing Chain Tensioner RH4.0L SC V8 - AJ26/3.2L NA
V8 - AJ26, 3.2L/4.0L
In-vehicle Repair
Removal
Special Tool(s)

Camshaft setting
303-530

Crankshaft setting
303-531

Timing chain tensioning
303-532
1. Open the engine compartment and fit paintwork protection
sheets.

2. Disconnect the batt ery ground cable.
Remove the battery cover.
3. Remove the Cam Cover from Ba nk 1. Refer to Operation
12.29.44.
4. Raise the vehicle on a ramp.
5. 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.

6. 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.

7. Install 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 setting peg engages
fully into the timing slot.
2. Install and tighten the bolt to secure the setting peg.
8. Lower the vehicle on the ramp.

9. Install the camshaft locking tool 303-530 to Bank 1 camshafts,
aligning the shafts sl ightly as necessary.
10. CAUTION: Use a length of steel strip that will not fall
into the timing cover.
Protect the upper face of the ti ming cover from scratches, when

Installation

removing the bolt which secures the sprocket. 1. Place a flat piece of stee l strip along the timing cover
horizontal jointing face, adjacent to the exhaust
camshaft sprocket.
2. Secure the steel strip in place with adhesive tape.

11. A ball-ended hexagon drive bit is required to remove the
sprocket securing bolt. A suitable tool is available from Snap On as (FABLM10E) Long Series 10mm AF.

12. Remove the bolt which secures the sprocket to the exhaust
camshaft.
Move the sprocket forward from the camshaft boss.

13. Remove the secondary chain tensioner.
1. Remove the two bolts which secure the tensioner.
Lift the tensioner, sprocket (release it fully from the
camshaft) and ch ain assembly.
2. Remove the tensioner rearward from between the chain.
14. Remove the sprocket if required, or leave it in the chain
resting on the cylinder head.
15. Clean and inspect all relevant components.
1. Install the sprocket to the secondary chain.
1. With the sprocket installe d to the chain, temporarily
position (do not install the securing bolt) the sprocket
onto the camshaft.
2. Adjust the position of the sprocket within the chain to

allow the chain tensioning tool 303-532 to be approximately vertical, as shown.
Remove the chain tensioni ng tool; during future
operations, do not move the sprocket within the chain.

2. Push the tensioner piston into the body to provide clearance
for installing.
1. Insert a thin rigid wire th rough the hole in the end of
the tensioner piston to displace the ball from the non-
return valve seat.
2. With the wire in position, press the piston fully into the tensioner body.
Remove the wire.

3. Install the chain tensioner between the chain path.
1. Reposition the sprocket, still captive in the chain, upwards for access.
2. Install the chain tensioner between the sprockets.
Position the cam sprocket, chain and tensioner assembly
into position and locate the sprocket onto the camshaft
spigot.

4. Install the chain tensioner to the engine.
1. Fully seat the sprocket onto the camshaft and install the securing bolt, hand tight.
2. install the two bolts which secure the tensioner and tighten to 10-14 Nm.
5. Install the cams haft sprocket.
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.

Whilst applying the opposing force to the sprocket and
chain, tighten the sprocket securing bolt to 115-125 Nm.
Remove the chain tensioning tool.
6. Remove the tape and steel stri p from the timing cover upper
face. Wipe any residue of tape from the joint face.
7. Remove the camshaft locking tool.
8. Install the Cam Cover to Bank 1. Refer to Operation 12.29.44.
9. Raise the vehicle on the ramp.
10. Remove the crankshaft setting tool 303-531.

11. Install the crankshaft position sensor.
1. Install the sensor to the flywheel housing and fit the
securing bolt. Tighten to 8-12 Nm.
2. Install the access grommet to the housing.
12. Lower the ramp.
13. Remove the paint protection sheets and close the engine
compartment cover.
14. Connect the battery and in stall the battery cover.
Refer to the Battery Reconnection Procedure 86.15.15.

Engine - Upper Oil Pan3.2L NA V8 - AJ26
In-vehicle Repair
Removal
Special Tool(s)

Installer/remover, Oil Filter
303-752

1. Disconnect the batt ery ground cable.
Remove the battery cover.
2. Open the engine compartment and fit paintwork protection
sheets.
3. Set the engine compartment cover to the service access
position.
4. Remove the timing cover and al l associated components, as
detailed in Operation 12.65.01.
5. Remove both front wheel and tyre assemblies. Refer to
Operation 74.20.05.
6. Remove the undertray. Re fer to Operation 76.22.90.

7. Remove the two bolts which secu re the generator cooling duct
to the oil pan body and remove the duct.
8. Remove the front cross member for access. Refer to Operation
76.10.05.
9. Drain the engine oil.
1. Position the waste oil bowser.
2. Remove the drain plug from the oil pan and drain the engine oil.
Fit a new sealing washer to the drain plug.

Wipe the drain plug and install it to the oil pan to prevent
oil dripping.
Move the oil bowser away from the vehicle.

10. Remove the oil pan.
1. Remove the eighteen bolt s which secure the oil pan
to the oil pan body.
2. Remove the oil pan.
3. Remove the gasket from the oil pan body assembly.

11. NOTE: Place a suitable container underneath filter to prevent
oil spillage.
Using the special tool, remove the oil filter.
12. Remove the oil pressure switch.
For additional information, refer to Oil Pressure Switch
- in this
section.

13. Remove the crankshaft position sensor.
1. Remove the bolt which secures the crankshaft position sensor to the flywheel housing.
2. Remove the access grommet from the housing.
Remove the sensor and allow it to hang free under the
engine.
Release the harness clips from the oil pan body.
14. Remove the bolt which secures the transmission cooler pipes
and remove the clamping bracket.

15. Release the air conditioning compressor.
Remove the lower securing bolts.
Loosen, but do not remove, th e upper securing bolts.
Release the compressor from the lower dowel.

16. Remove the four bolts (two each side) which secure the
exhaust downpipes to the oil pan body.

17. Remove the oil pick-up pipe.
1. Remove the bolts which secure the pipe.
2. Remove the pipe.
3. Remove and discard the seal.
18. Remove the bolts, ten outer an d six inner, which secure the
oil pan body.
Remove the oil pan body.