Variable Camshaft Timing Unit (G2320442): Removal

CAUTION: Before disconnecting any components, make sure the area is clean and free from foreign material. When disconnected all openings must be sealed.

NOTE:

This procedure contains some variation in the illustration depending on the vehicle specification, but essential information is always correct.
This procedure contains illustrations showing certain components removed to provide extra clarity.

The following step(s) applies to:

All vehicles

CAUTION: If the Variable Camshaft Timing (VCT) unit is replaced due to a fault, the spark plugs must be examined.

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Examine the spark plugs and replace as required.

Refer to: SPARK PLUGS .
Raise and support the vehicle on a suitable 2 post lift.
Refer to: JACKING AND LIFTING .
Disconnect the startup battery ground cable.
Refer to: STARTUP BATTERY DISCONNECT AND CONNECT .
Remove the upper timing cover.
Refer to: UPPER TIMING COVER .
Remove the front wheel arch liner.
Refer to: FRONT WHEEL ARCH LINER .
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- Install the special tool JLR-303-1656 as illustrated.
  Special Tool(s): JLR-303-1656
- Use the special tool JLR-303-1656 to rotate the crankshaft until the timing marks align as illustrated.
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- Install the special tool JLR-303-1635 as illustrated.
  Special Tool(s): JLR-303-1635
- Install and tighten the 2 special tool bolts.
  Torque : 13 Nm
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- Install the special tool JLR-303-1636 as illustrated.
  Special Tool(s): JLR-303-1636
- Install and tighten the 2 special tool bolts.
  Torque : 13 Nm
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Install the special tool JLR-303-1630 to lock the crankshaft.

Special Tool(s): JLR-303-1630

The following step(s) applies to:

Mild Hybrid Electric Vehicles
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Install the special tool JLR-303-1686 adapter to the special tool JLR-303-1630 crankshaft pulley locking tool.

Special Tool(s): JLR-303-1630 , JLR-303-1686
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Install the special tools JLR-303-1630 and JLR-303-1686 to lock the crankshaft.

Special Tool(s): JLR-303-1630 , JLR-303-1686

The following step(s) applies to:

All vehicles
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- Loosen but do not fully remove the VCT bolts.
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- Remove and discard the upper timing chain tensioner.
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- Remove the 2 special tool bolts.
- Remove the special tool JLR-303-1636.
  Special Tool(s): JLR-303-1636
CAUTION: Note the location of the VCT units prior to removal. Each VCT unit is matched to a specific camshaft.

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- Remove and discard the 2 VCT unit center bolts.
- Remove the 2 VCT units.
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- Remove and discard the 2 bolts.
- Remove and discard the timing chain guide.
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- Remove and discard the bolt.
- Remove and discard the left timing chain guide.
- Remove and discard the timing chain tensioner guide.
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- Release the timing chain from the idler sprocket and remove.