engine ASTON MARTIN V8 VANTAGE 2010 Workshop Manual

Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-23
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.
4. Install and torque the ten bolts in the sequence 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 ne
cessary and measure each
valve clearance again.
12. Remove the sprocket attachment Torx bolt.
13. Install left and right secondary timing chain tensioner (refer to Workshop Manual procedure 03.09.BR/
03.09.BS Tensioner Assembly - Secondary - LH/RH -
Renew With Engine Removed).
Caution
Tighten the bearing cap bolt s gradually in a diagonal
sequence to correctly seat the camshaft bearing caps.
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Engine (03.00)3-9-24 Workshop Manual Issue 5, January 2010
RH/LH Secondary Timing Chain-Renew
(with Engine Removed
)
Remove
1. Remove the left and right primary timing chain (refer to Workshop Manual procedure 03.09.BM/03.09.BN
Timing Chain - Primary - LH/RH - Renew With Engine
Removed).
2. Remove the two M12 Torx bolts that attach the inlet and exhaust camshaft sprocket s 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 2
5. Release and remove the camshaft sprockets complete with the timing chain and tensioner from camshafts
(refer to Figure 3)..
Figure 3
6. Remove secondary timing chain and tensioner from 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 camshaft sprockets.
3. Install the secondary timing chain assembly onto the camshafts.
4. Install the spacer onto the M12 exhaust Torx bolt.
5. Install the exhaust M12 Torx bolt to attach the exhaust camshaft sprocket. Do not tighten at this step.
6. Install the inlet M12 Torx bolt to attach the inlet camshaft sprocket. Do not tighten at this step.
7. Install and torque the two M6 secondary tensioner attachment bolts.
8. Install the left guide for the primary timing chain.
9. Install and torque the M6 bolt that attaches the left guide.
10. Make sure that the timing ch ain slack is on the tensioner
side of the timing chain.
11. Install the primary timing chain.
12. Install the primary timi ng chain tensioner blade.
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Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-25
13. Install and torque the M6 attachment bolt for the tensioner blade.
14. Install the tensioner assembly for the primary timing chain.
15. Install and torque the two M6 bolts that attach the tensioner assembly.
16. Release the tension on the piston of the timing chain tensioner.
17. Remove the retaining special tool.
18. Install the timing chain tensioning tool (303-532) into the exhaust camshaft sprocket.
19. Apply a force to the tool (303-532) in a counterclockwise direction and torque the M12
sprocket Torx bolts.
20. Remove the special tool.
21. Install the left and right primary timing chain (refer to Workshop Manual procedure 03.09.BM/03.09.BN
Timing Chain - Primary - LH /RH - Renew With Engine
Removed).
RH/LH Intake Camshaft Sprocket and
Housing Assembly-Renew
Remove
1. Remove the left and right pr imary timing chain (refer to
Workshop Manual procedure 03.09.AN/03.09.AM/
03.09.CN/03.09.CM Chain - Timing Primary - RH/LH -
Renew). 2. Remove the two M12 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 2
Caution
Apply an opposite force to the sprockets and chain while
you tighten the sprocket bolts
Repair Operation Time (ROT)
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Engine (03.00)3-9-26 Workshop Manual Issue 5, January 2010
5. Release and remove the two camshaft sprockets complete with the timing chain and tensioner from the
camshafts (refer to Figure 3).
Figure 3
6. Remove the intake sprocket housing assembly from the secondary timing chain (refer to Figure 4).
Figure 4
Install
1. Clean the two camshaft sprockets and the tensioner.
2. Install intake sprocket housing assembly and exhaust sprocket into secondary timing chain.
3. Install secondary timing ch ain tensioner onto timing
chain.
4. Install secondary timing chain assembly onto camshafts.
5. Install the spacer onto the M12 exhaust Torx bolt.
6. Install the exhaust M12 Torx bolt to attach the exhaust camshaft sprocket. Do not tighten at this step.
7. Install the inlet M12 Torx bolt to attach the inlet camshaft sprocket. Do not tighten at this step.
8. Install and torque tighten secondary tensioner bolts (x2).
9. Install RH primary timing chain guide, install and torque tighten bolt.
10. Make sure that the timing chain slack is on the tensioner side of the timing chain.
11. Install primary timing chain.
12. Install primary timing chain tensioner blade, install and
torque tighten bolt. 13. Install primary timing chai
n tensioner assembly, install
and torque tighten bolts (x2).
14. Release tension on the ti ming chain tensioner piston,
remove retaining special tool.
15. Install timing chain tens ioning tool (303-532) into
exhaust camshaft sprocket.
16. Apply a force to the tool (303-532) in an anti-clockwise direction and torque tighte n sprocket Torx bolts.
Remove special tool.
17. Install RH/LH primary timing chain (refer to Workshop
Manual procedure 03.09.AN/03.09.AM/03.09.CN/
03.09.CM Chain - Timing Primary - RH/LH - Renew).
Left Side Primary Chain - Remove and
Install
)
Remove
1. Remove the right side primar y timing chain. (refer to
procedure 03.09.CN - Right Side Primary Timing Chain)
2. Remove the two bolts that attach the left side bush carrier for the Variable Camshaft Timing (VCT) to the
engine.
Figure 1
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Caution
Apply an opposite force to the sprockets and chain while you tighten the sprocket bolts
Repair Operation Time (ROT)
ItemCode
Left Side Primary Chain - Remove and Install 03.09.CM

Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-27
3. Remove the nut that attaches the left side bush carrier for the VCT to the engine.
Figure 2
4. Remove the left side bush carrier for the VCT.
Figure 3
5. Loosen the two bolts that attach the timing chain tensioner to the engine.
Figure 4
6. Release the ratchet lock on the timing chain tensioner and push the piston into the tensioner housing.
Figure 5
7. Install an applicable pin into the timing chain tensioner.
Figure 6
8. Remove the two bolts that attach the timing chain tensioner to the engine.
Figure 7
9. Remove the timing chain tensioner.

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Engine (03.00)3-9-28 Workshop Manual Issue 5, January 2010
10. Remove the special pivot bolt for the tensioner arm from the engine.
Figure 8
11. Remove the tensioner arm.
Figure 9
12. Remove the bolt that attaches the timing chain guide to the engine.
Figure 10
13. Remove the timing chain guide.
Figure 11
14. Remove the timing chain.
Figure 12
15. Loosen the two Torx bolts that attach the camshaft sprockets to the camshafts.
Figure 13
Install
1. If you have moved the crankshaft after you have removed the timing chain, make sure that you set the
crankshaft with the left bank rear piston (4B) at 135
degrees after top dead centre.

Valve Train (03.09)
Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-29
2. Install the timing chain (refer to Figure 12).
3. Install the timing chain guide (refer to Figure 11).
4. Install the bolt that attach es the timing chain guide to
the engine. Torque the bolt to 11 Nm.
5. Install the tensioner arm.
6. Install the bolt that attaches the tensioner arm to the engine. Torque the bolt to 11 Nm.
7. Install the timing chain tensioner.
8. Install and torque the two bolts that attach the timing chain tensioner to the engine to 11 Nm.
9. Install the special tool onto the exhaust camshaft sprocket. 10. Note: Use the special tool to hold the timing chain in
the correct place during the next two steps of the
procedure.
11. Use the special tool to turn the exhaust sprocket counterclockwise until there is tension in the chain.
12. Note: Make sure that the tensioner is fully operated but do not use too much force.
13. Release the pin from the timing chain tensioner and let the tension piston gradually tension the timing chain.
14. Note: Make sure that you to rque the bolt that attaches
the sprocket to the exhaust camshaft first in the step that
follows.
15. Torque the two Torx bolts that attach the camshaft sprockets to the camshafts to 20 Nm.
16. Note: Make sure that you to rque the bolt that attaches
the sprocket to the exhaust camshaft first in the step that
follows.
17. Tighten the two Torx bolts that attach the camshaft sprockets to the camshafts 90 degrees more.
18. Remove the special tool from the exhaust camshaft sprocket.
19. Install the left side bush carrier for the VCT.
20. Install the two bolts that attach the left side bush carrier for the VCT to the engine. Torque the two bolts to 21
Nm.
21. Install the nut that attaches the left side bush carrier for the VCT to the engine. Torque the nut to 11 Nm.
22. Install the right side primar y timing chain. (refer to
procedure 03.09.CN - Right Side Primary Timing
Chain).
RH/LH Intake Camshaft Sprocket and
Housing Assembly-Renew (with Engine
Removed
)
Remove
1. Remove the right and left primary timing chains (refer to Workshop Manual procedure 03.09.BN/03.09.BM
Timing Chain - Primary - RH/LH - Renew With Engine
Removed).
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Engine (03.00)3-9-30 Workshop Manual Issue 5, January 2010
2. Collect the spacer from the bolt on the exhaust camshaft.
Figure 1
3. Remove the two M6 bolts that attach the secondary timing chain tensioner to the cylinder head (refer to
Figure 2).
Figure 2
4. Release and remove camshaft sprockets complete with timing chain and tensioner from camshafts (refer to
Figure 3).
Figure 3
5. Remove intake sprocket housing assembly from secondary timing chain (refer to Figure 4).
Figure 4
Install
1. Clean the two camshaft sprockets and the tensioner.
2. Install the intake sprocket housing assembly and the exhaust sprocket into the secondary timing chain.
3. Install the secondary timing chain tensioner onto the timing chain.
4. Install the secondary timing chain assembly onto the camshafts.
5. Install the spacer onto the M12 exhaust Torx bolt.
6. Install the exhaust M12 Torx bolt to attach the exhaust camshaft sprocket. Do not tighten at this step.
7. Install the inlet M12 Torx bolt to attach the inlet camshaft sprocket. Do not tighten at this step.
8. Install and torque the two M6 bolts that attach the secondary tensioner.
9. Install the guide for the right primary timing chain.
10. Install and torque the M6 bolt that attaches the guide.
11. Make sure that the timing ch ain slack is on the tensioner
side of the timing chain.
12. Install the primary timing chain.
13. Install the tensioner blade for the primary timing chain.
14. Install and torque the M6 bolt that attaches the tensioner blade.
15. Install the primary timing chain tensioner assembly.
16. Install and torque the two M6 bolts that attach the tensioner assembly.
17. Release the tension from the timing chain tensioner piston and remove the retaining special tool.
18. Install the timing chain te nsioning tool (303-532) into
the exhaust camshaft sprocket.
19. Apply a force to the tool (303-532) in a counterclockwise direction and torque the two M12
sprocket Torx bolts.
20. Remove the special tool.
21. Install the left and right primary timing chain (refer to Workshop Manual procedure 03.09.BN/03.09.BM
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Caution
Apply an opposite force to the sprockets and chain while you tighten the sprocket bolts.
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Engine (03.00)
Issue 5, January 2010 Workshop Manual 3-9-31
Timing Chain - Primary - RH/LH - Renew With Engine
Removed).

Valve Train (03.09)
Engine (03.00)3-9-32 Workshop Manual Issue 5, January 2010