1998 JAGUAR X308 clock

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.

25. Reconnect the air flow meter multi-plug.
26. fit a new strap to secures the vacuum pipe to the induction
elbow.

27. Connect the breather pipe to the A-Bank camshaft cover.
1. Fit a new O-ring seal to the breather pipe.
2. Reconnect the breather pipe to the stub pipe.
28. Carefully refit the engine covers, taking care not to damage
the plastic fixings or the rubber inserts.
29. Connect the battery ground cabl e. Refit the battery cover.
Reset the clock and the radio information.
30. Check for leaks and that all pi pes are securely connected.
Remove the protection sheets, close the engine compartment,
luggage compartment and doors.

2. Reconnect the breather pipe to the stub pipe.
21. Carefully refit the engine covers, taking care not to damage
the plastic fixings or the rubber inserts.
22. Connect the battery ground cabl e. Refit the battery cover.
Reset the clock and the radio information.
23. Check for leaks and that all pi pes are securely connected.
Remove the protection sheets, close the engine compartment,
luggage compartment and doors.

sprocket, B-Bank.
Reposition the sprocket (and the VVT unit) for the most
advantageous position for use of the tool.
Remove the tool.

2. Refit the primary timing chain, B-Bank.
1. Fit the primary chain over the crankshaft sprocket and the VVT unit sprocket. There must be no slack on
the drive side of the primary chain and the VVT unit
must not be rotate d on the camshaft.
Slide the VVT and exhaust sprocket fully rearwards onto
the respective camshafts.

3. Fit the primary chain tensioner blade.
1. Position the tensioner blade to the cylinder block.
2. Fit the retaining / pivot bolt and tighten it to 12 - 16 Nm.

4. Refit the primary chain tensione r assembly. Refer to Operation
12.65.55 in this Section.
Use a wedge 303 - 533 (or two if required) between the
primary chain tensioner and te nsioner blade, to take up
the slack in the chain.
5. Tighten the exhaust camshaft sprocket securing bolt.
1. Fit the chain tensioner tool 303 - 532 to the sprocket holes.
1. 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

10. Fit the primary chain tensioner blade.
1. Position the tensioner blade to the cylinder block.
2. Fit the retaining / pivot bolt and tighten it to 12 - 16 Nm.

11. Refit the primary chain tens ioner assembly. Refer to
Operation 12.65.54 in this Section.
Use a wedge 303 - 533 (or two if required) between the
primary chain tensioner and te nsioner blade, to take up
the slack in the chain.

12. Tighten the exhaust camshaft sprocket securing bolt.
1. Fit the chain tensioner tool 303 - 532 to the sprocket holes.
1. 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 sprock et securing bolt to 115 -
125 Nm.
13. 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 115 - 125 Nm.
Remove the chain tensioning tool and the wedge(s).

camshaft sprocket, Bank 2.
Reposition the sprocket to the most advantageous position for use of the tool.
Remove the tool.

2. Install the primary timi ng chain, Bank 2.
1. Install the primary chain over the crankshaft sprocket and the intake camshaft sp rocket. There must be no
slack on the drive side of the primary chain and the
sprockets should not be rotated on the camshafts (or
the tensioning tool may not fit).
Slide the camshaft sprocket s fully rearwards onto the
respective camshafts.

3. Install the primary ch ain tensioner blade.
1. Position the tensioner blade to the cylinder block.
2. Install the retaining / pivo t bolt and tighten it to 12-
16 Nm.

4. Install the primary chain te nsioner assembly. Refer to
Operation 12.65.55.
Use a wedge 303-533 (or two if required) between the
primary chain tensioner and te nsioner blade, to take up
the slack in the chain.
5. 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.

10. Install the primary ch ain tensioner blade.
1. Position the tensioner blade to the cylinder block.
2. Install the retaining / pivo t bolt and tighten it to 12-
16 Nm.

11. Install the primary chain te nsioner assembly. Refer to
Operation 12.65.54.
Use a wedge 303-533 (or two if required) between the
primary chain tensioner and te nsioner blade, to take up
the slack in the chain.

12. 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 sprock et securing bolt to 115-
125 Nm.
13. Tighten 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.
Remove the chain tensioning tool and the wedge(s).

Reposition the sprocket (and the VVT unit) for the most
advantageous position for use of the tool.
Remove the tool.

3. Refit the primary timing chain.
1. Fit the primary chain to position over the crankshaft sprocket and the VVT unit sprocket. There must be no
slack on the drive side of the primary chain and the
VVT unit must not be rotated on the camshaft.

4. Fit the primary chain tensioner blade.
1. Position the tensioner blade to the cylinder block.
2. Fit the retaining / pivot bolt and tighten it to 12-16 Nm.

5. Refit the primary chain tensione r assembly. Refer to Operation
12.65.54 in this Section.
Use a wedge 303 - 533 (or two if required) between the
primary chain tensioner and tensioner blade, to take up
the slack in the chain.
6. Tighten the exhaust camshaft sprocket securing bolt.
1. Fit 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