2010 ASTON MARTIN V8 VANTAGE Workshop Manual

Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-11
19. Install an applicable pin into the timing chain tensioner.
Figure 16
20. Remove the two bolts that attach the timing chain tensioner to the engine.
Figure 17
21. Remove the timing chain tensioner.
Figure 18
22. Remove the bolt that attaches the tensioner arm to the engine.
Figure 19
23. Remove the tensioner arm.
Figure 20
24. Loosen the two Torx bolts that attach the camshaft sprockets to the camshafts.
Figure 21
Install
1. Install the tensioner arm (refer to Figure 20).

Valve Train (03.09)
Engine (03.00)3-9-12 Workshop Manual Issue 5, January 2010
2. Install and torque the special bolt that attaches the tensioner arm to the engine to 11 Nm (refer to
Figure 19).
3. Install the timing chain tens ioner (refer to Figure 18).
4. Install and torque the two bolts that attach the timing chain tensioner to the engine to 11 Nm (refer to
Figure 17).
5. Install the special tool on the exhaust camshaft sprocket.
Figure 22
6. Use the special tool to turn the exhaust sprocket counterclockwise until the chain is tight.
Figure 23
7. Release the pin from the ti ming chain tensioner and let
the tension piston gradually tension the timing chain.
Figure 24
8. Torque the two Torx bolts that attach the camshaft
sprockets to the camshafts to 20 Nm.
Figure 25
9. Torque the two Torx bolts that attach the camshaft sprockets to the camshafts 90 degrees more (refer to
Figure 25).
Note: You must use the special
tool to hold the timing chain
in the correct position during the subsequent two steps of
the procedure.
Note: Make sure that the tensio ner is fully operated but do
not use too much force.
Note: Make sure that you torque the bolt that attaches the
sprocket to the exhaust camsha ft first in the step that
follows.
Note: Make sure that you torque the bolt that attaches the
sprocket to the exhaust camsha ft first in the step that
follows.

Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-13
10. Remove the special tool from the exhaust camshaft sprocket.
Figure 26
11. Install the right side bush carrier for the VCT.
Figure 27
12. Install the three bolts that attach the right side bush carrier for the VCT to the engine. Torque the three bolts
to 21 Nm.
Figure 28
13. Use the applicable equipment to lift the vehicle and make it safe. 14. Remove the two socket cap screws that attach the
special tool to the engine.
Figure 29
15. Remove the special tool from the flywheel.
Figure 30
16. Lower the vehicle.
17. Remove the three screws that attach the special tool to the left cylinder head.
18. Remove the special tool from the left cylinder head.

Valve Train (03.09)
Engine (03.00)3-9-14 Workshop Manual Issue 5, January 2010
19. Remove the three screws that attach the special tool to the right cylinder head.
20. Remove the special tool from the right cylinder head.
21. Turn the crankshaft two full revolutions clockwise.
22. Use the applicable equipment to lift the vehicle and make it safe.
23. Install the special tool onto the flywheel.
24. Install and tighten the two screws that attach the special tool to the engine.
25. Install the engine timing cover (refer to procedure 03.10.AF - Engine Timing Cover).
RH/LH Secondary Tensioner Assembly -
Remove and Install
Remove
1. Remove the left and right primary timing chains (refer to Workshop Manual procedure 03.09.AM/03.09.AN/
03.09.CM/03.09.CN Chain - Timing Primary - LH/RH -
Renew).
2. Remove the two M12 Torx bolts that attach the inlet and exhaust camshaft sprockets to the camshafts (refer
to Figure 1).
Figure 1
3. Collect the spacer from the bolt on the exhaust camshaft.
4. Remove the two M6 bolts that attach the secondary timing chain tensioner to the cylinder head (refer to
Figure 2).
Figure 2
Caution: During the step that follows, if you feel any
increase in resistance, do not force the crankshaft. If
you do you can damage the en gine. If you cannot turn
the crankshaft, you must do the engine timing
procedure again.
Repair Operation Time (ROT)
Secondary Tensioner Assembly-
Renew LH-RHD
03.09.CR
Secondary Tensioner Assembly-
Renew RH-RHD
03.09.CS
WAR NI NG
DO NOT GET USED ENGINE OIL ON YOUR SKIN. USED ENGINE OIL CAN BE HARMFUL.
Repair Operation Time (ROT)
ItemCode
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Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-15
5. Release and remove camshaft sprockets complete with timing chain and tensioner from camshafts (refer to
Figure 3).
Figure 3
6. Remove the secondary timing chain and tensioner from the sprockets (refer to Figure 4).
Figure 4
Install
1. Clean the camshaft sprockets and the tensioner.
2. Install the secondary timing chain and tensioner to the camshaft sprockets.
3. Install the secondary timing chain assembly onto the camshafts.
4. Install the spacer onto the exhaust Torx bolt.
5. Install the M12 exhaust Torx bolt to attach the exhaust camshaft sprocket. Do not tighten at this step.
6. Install the M12 inlet Torx bolt to attach the inlet camshaft sprocket. Do not tighten at this step.
7. Install and torque the two M6 bolts that attach the secondary tensioner.
8. Install the left primary timing chain guide.
9. Install and torque the M6 bolt that attaches the guide.
10. Make sure that the timing chain has no tension on the tensioner side of the timing chain.
11. Install the primary timing chain.
12. Install the tensioner blade for the primary timing chain.
13. Install and torque tighten the M6 bolt that attaches the tensioner blade. 14. Install the tensioner assemb
ly for the primary timing
chain.
15. Install and torque the two M6 bolts that attach the tensioner assembly.
16. Release the tension on the timing chain tensioner piston. Remove retaining special tool.
17. Install the timing chain tens ioning tool (303-532) into
the exhaust camshaft sprocket.
18. Apply a force to the tool (303-532) in a counterclockwise direction and torque the two M12
sprocket Torx bolts.
19. Remove the special tool (303-532).
20. Install the left and right prim ary timing chains (refer to
Workshop Manual procedure 03.09.AM/03.09.AN/
03.09.CM/03.09.CN Chain - Timing Primary - LH/RH -
Renew).
Right and Left Intake Camshaft - Remove
and Install
Remove
1. Remove the right and left secondary timing chain tensioners (refer to Workshop Manual procedure
03.09.AS/03.09.AR03.09.CS/03.09.CR Tensioner
Assembly - Secondary - RH/LH - Renew).
2. Remove the three bolts that attach the tool (303-530) to the cylinder head.
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Caution
Apply an opposite force to the sprockets and chain while you tighten the sprocket bolts.
Repair Operation Time (ROT)

Valve Train (03.09)
Engine (03.00)3-9-16 Workshop Manual Issue 5, January 2010
3. Remove the special tool (refer to Figure 1 - Right side shown).
Figure 1 (Right Side Shown)
4. Collect the spacer (303-530/04) if used.
5. Loosen the bolts that attach the ten intake camshaft bearing caps gradually, in step s (refer to Figure 2 - Right
side shown).
Figure 2 (Right Side Shown)
6. Record the installed direction and positions and remove the five right intake bearing caps. 7. Remove the right intake camshaft (refer to Figure 3 -
Right side shown).
Figure 3 (Right Side Shown)
Install
1. Apply clean engine oil to the items that follow:
• The camshaft journals
• The camshaft lobes
• The bearing surfaces on the cylinder head
• The bearing caps.
2. Install the right intake camshaft.
3. Install the five bearing caps in their initial positions.
4. Install and torque the ten bolts in the sequence shown in Figure 3.
Figure 3
5. Install the M12 Torx bolt to attach the sprocket to the camshaft.
6. Rotate the camshaft as necessary and measure and record each valve clearance.
7. Do steps 4 to 6 again.
8. Calculate the necessary tappet grade for each valve.
A0309250
A0309258
Caution
Tighten the bearing cap bolts gradually in a diagonal
sequence to correctly seat the camshaft bearing caps.
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Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-17
9. Install the correct tappets.
10. Do steps 1 to 4 again.
11. Rotate the camshaft as necessary and measure each valve clearance again.
12. Remove the M12 sprocket attachment Torx bolt.
13. Install the right and left tensioner for the secondary timing chain (refer to Workshop Manual procedure
03.09.AS/03.09.AR03.09.CS/03.09.CR Tensioner
Assembly - Secondary - RH/LH - Renew).
Right and Left Exhaust Camshaft -
Remove and Install
Remove
1. Remove the right and left secondary timing chain tensioner (refer to Workshop Manual procedure
03.09.AS/03.09.AR/03.09.CS/03.09.CR Tensioner
Assembly - Secondary - RH/LH - Renew).
2. Remove the three bolts that attach the tool (303-530) to the cylinder head.
3. Remove the special tool (refer to Figure 1 - Right side shown).
Figure 1 (Right Side Shown)
4. Collect the spacer (303-530/04) if used. 5. Loosen the bolts that attach the ten exhaust camshaft
bearing caps gradually, in steps (refer to Figure 2 - Right
side shown).
Figure 2
6. Record the installed direction and positions and remove the five right exhaust bearing caps.
7. Remove the right exhaust camshaft (refer to Figure 3 - Right side shown.
Figure 3
Install
1. Apply clean engine oil to the items that follow:
• The camshaft journals
• The camshaft lobes
• The bearing surfaces on the cylinder head
• The bearing caps.
2. Install the right exhaust camshaft.
3. Install the five bearing caps in their initial positions.
Repair Operation Time (ROT)
A0309250Caution
Tighten the bearing cap bolt s gradually in a diagonal
sequence to correctly seat the camshaft bearing caps.
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Valve Train (03.09)
Engine (03.00)3-9-18 Workshop Manual Issue 5, January 2010
4. Install and torque the ten bolts in the sequence specified as shown in Figure 4.
Figure 4
5. Install the Torx bolt to attach the sprocket to the camshaft.
6. Rotate the camshaft as necessary and measure and record each valve clearance.
7. Do steps 4 to 6 again.
8. Calculate the necessary tappet grade for each valve.
9. Install the correct tappets.
10. Do steps 1 to 4 again.
11. Rotate the camshaft as necessary and measure each valve clearance again.
12. Remove the sprocket attachment Torx bolt.
13. Install right and left seco ndary timing chain tensioner
(refer to Workshop Manual procedure 03.09.AS/
03.09.AR03.09.CS/03.09.CR Tensioner Assembly -
Secondary - RH/LH - Renew).
RH/LH Secondary Timing Chain-Renew
Remove
1. Remove the left and right primary timing chain (refer to Workshop Manual procedure 03.09.AM/03.09.AN/
03.09.CM/03.09.CN Chain - Timing Primary - LH/RH -
Renew). 2. Remove the two Torx bolts that attach the inlet and
exhaust camshaft sprockets to camshafts (refer to Figure
1).
Figure 1
3. Collect the spacer from the bolt on the exhaust camshaft.
4. Remove the two M6 bolts that attach the secondary timing chain tensioner to the cylinder head (refer to
Figure 2).
Figure 2Repair Operation Time (ROT)
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