Get Engine -> Checking and Setting the Valve Timing Guide for Citroen C6 4 Door First Generation (2005-2012)

CHECKING AND SETTING THE VALVE TIMING

Petrol

Diesel

3.0i 24BS

2,7 24V

Engine type

C6

XFV

X

UHZ

X

See pages:

51 to 57

58 to 67

50

CHECKING THE VALVE TIMING

Engine: ES9A

Tools.

[1] Camshaft setting pegs

[2] Crankshaft setting peg

[3] Fuel pressure take-off union

[4] Belt retaining pin

[5] Exhaust camshaft hubs immobilising tool

[6] Inlet camshaft hubs immobilising tool

[7] SEEM belt tension measuring equipment

: (-).0187.B

: (-).0187.A

: 4192-T

: (-).0187.J

: (-).0187.F

: FACOM D12

: 4122-T

Remove components as necessary for this operation.

Remove the auxiliaries drive belt (see corresponding operation).

Checking the valve timing.

Remove:

- The power steering pulley.

- The roller/dynamic tensioner assembly (11).

- The crankshaft pulley (12).

- The upper timing covers (9) and (10).

- The lower timing cover (13).

B1BP2BKC

51

CHECKING THE VALVE TIMING

Engine: ES9A

Checking the valve timing (continued).

Peg the crankshaft, using tool [1].

Check that the tool [2] engages without effort in the cylinder heads at the camshaft pulleys.

Remove the tools [1] and [2].

Refit:

B1EP08TC

- The lower timing cover (13).

- The upper timing covers (9) and (10).

- The crankshaft pulley (12).

- The roller/dynamic tensioner assembly (11).

- The power steering pulley.

Complete the refitting of components.

Initialise the ignition injection ECU.

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52

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Setting the valve timing.

Remove the components as necessary for the operation.

Remove the screws (19) and the plate (20).

Peg the crankshaft, using tool [2].

NOTE: Damp the rotation of the camshafts (15) and (17), using tool [6].

Untighten the camshaft pulley screws (15) and (17).

NOTE: Damp the rotation of the camshafts (14) and (18), using tool [5].

Untighten the camshaft pulley screws (14) and (18).

NOTE: Lubricate the tools [1], with grease G6 (TOTAL MULTIS).

Peg the camshafts, using tools [1], [5] and [6].

Remove the screw (21) of the panel (25).

Untighten the nut (23) of the tensioner roller (24).

Untighten the screws (22) of the panel (25).

Remove the guide roller (16).

WARNING: Mark the direction of fitting of the timing belt, in case the belt is to be reused.

Remove the timing belt.

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53

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Setting the valve timing (continued).

Refitting.

Check that the camshafts and the crankshaft are correctly pegged.

Check that the rollers and the coolant pump pulley are turning freely (no tightness).

Loosen the camshaft pulley screws by a 1/4 turn.

Make sure that the pulleys are turning freely on the camshaft hub.

Turn the camshaft pulleys in a clockwise direction, to end of slots.

WARNING: Respect the direction of fitting of the belt: Facing the timing, the inscriptions on

the belt should be readable the correct way up.

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Fit the timing belt on the crankshaft pinion.

Position the tool [6].

Position the timing belt in the following sequence (belt well tensioned):

- The roller (26), the pulley (18), the pulley (17).

WARNING: Keep the timing belt well tensioned.

- Refit the guide roller (16), tighten to 8 0,8 m.daN.

Position the timing in the following sequence:

- The camshaft pulleys (15) and (14), the tensioner roller (24), the coolant pump pulley and the

guide roller (27).

NOTE: When positioning the belt on the camshaft pulleys, turn these clockwise so as to engage the

next tooth. The angular displacement of the pulleys should not be more than the equivalent of one

tooth.

B1BP2BLC

54

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Setting the valve timing (continued).

Adjusting the timing belt tension.

Preliminary operations.

Pivot the plate (25) of the tensioner roller (24), using a spanner (type FACOM S.161).

Engage the screw (21) on the plate (25).

Tighten the screws (21) and (22), tighten to 2,5 0,1 m.daN.

Act on the tensioner roller (24) so as to tension the belt, using a spanner (type FACOM R 161).

Adjust the belt tension, using tool [7]:

- Measuring equipment SEEM CTI 901.1

- Measuring equipment SEEM CTG 105.5

- Measuring equipment SEEM CTG 105.6

: 440 15 SEEM units.

: 83 2 SEEM units.

: 88 2 SEEM units.

WARNING: Never go beyond the tensioner limit.

NOTE: The check of the belt tension is done on the longest belt section between the crankshaft

pinion and the guide roller.

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55

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Tighten the nut (23) of the tensioner roller (24), tighten to 1 0,1 m.daN.

Check that the exhaust camshaft pulley screws are not at the end of slots (by loosening one screw).

WARNING: Otherwise, restart the operation for positioning the timing belt.

Tighten at least 2 screws per exhaust camshaft pulley to 1 0,1 m.daN.

Remove the tools [1], [2] and [4].

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Rotate the crankshaft 2 turns in a clockwise direction.

IMPERATIVE: Never turn it back.

Peg the crankshaft, using tool [2].

Peg the camshaft pulleys, using tool [1].

Slacken the nut (23) of the tensioner roller (24).

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56

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Tensioning the timing belt.

Act on the tensioner roller (24) so as to align the marks «c» and «d», without detensioning the timing belt

(failing this, restart the operation of adjusting the belt tension).

Hold the tensioner roller (24).

Tighten the nut (23), tighten to 1 0,1 m.daN.

Check the position of the tensioner roller (the alignment of the marks «c» and «d» should be correct).

Remove the tools [1], [2] and [4].

Turn the crankshaft 2 rotations clockwise.

IMPERATIVE: Never turn it back.

Peg the crankshaft, using tool [2].

Check the position of the tensioner roller (the alignment of the marks «c» and «d» should be correct).

Peg the camshaft pulleys, using tool [1].

If the peg [1] goes in: Loosen the exhaust camshaft pulley screws by 45°.

If the peg [1] does not go in: Slacken the exhaust camshaft pulley screws by 45°.

Bring the exhaust camshaft hub to the pegging position (5), using tool [5].

WARNING: Check that the exhaust camshaft pulleys are not at the end of slots. Otherwise, restart

the operation to position the timing belt.

Tighten the exhaust camshaft pulley screws to 1 0,1 m.daN.

Remove tools [1] and [2].

Complete the refitting.

Initialise the injection ECU (see corresponding operation).

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57

CHECKING THE VALVE TIMING

Engine: DT17BTED4

Tools.

[1] Set of plugs

[2] Flywheel setting peg (double flywheel)

[3] Camshaft setting pegs

: (-).0188-T

: (-).0195.K

: (-).0195.H

Toolkit 0188-T

Checks.

IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure

Diesel injection (HDi) engines.

Remove the engine cover.

Disconnect the battery negative terminal.

Raise and support the front of the vehicle.

Remove:

- The under-engine sound-deadening.

- The front RH wheel.

- The front RH splash-shield (see corresponding operation).

Remove:

- The air duct between the air/air exchanger and the air inlet housing (4).

- The air inlet housing (4).

Uncouple, plug and move aside the pipes (2) and (3), using tools [1].

Unclip and move aside the electrical harness.

Remove the venting chamber fixing (1).

Move aside the venting chamber (1).

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58

CHECKING THE VALVE TIMING

Engine: DT17BTED4

Remove:

- The auxiliary drive belt (5) (see corresponding operation).

- The upper timing covers (6).

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Position the camshaft pegging holes "a" and "b" at "c" and "d", 30° 5° forward of their pegging

holes "e" and "f".

NOTE: Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion

screw.

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59

CHECKING THE VALVE TIMING

Engine: DT17BTED4

Remove the plug from the pegging hole on the cylinder block.

NOTE: Removing the particle filter and catalytic converter flexible pipe assembly facilitates removal

of the plug from the pegging hole and the positioning of the tool [2].

NOTE: Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion

screw.

Peg the crankshaft, using tool [2].

Peg the camshafts, using tools [3].

IMPERATIVE: If it is not possible to peg the camshafts, restart the setting of the valve timing

(see corresponding operation).

B1DP1MOC

Remove the tools [2] and [3].

Refit the plug on the pegging hole on the cylinder block.

Refit:

- The upper timing covers (6).

- The auxiliary drive belt (5) (see corresponding operation).

Reclip the electrical harness.

Fit the venting chamber (1).

Remove the tools [1].

Reposition and connect the pipes (2) and (3).

Complete the refitting.

B1EP1JBD

60

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Tools.

[1] Kit of plugs

[2] Flywheel setting peg (double damping flywheel)

[3] Camshaft setting pegs

[4] Belt compressure spring

[5] Coolant pump pulley peg

[6] Lifting bracket

: (-).0188-T

: (-).0195.K Toolkit 0188-T

: (-).0195.H Toolkit 0188-T

: (-).0188.K

: (-).0195.C

: (-).0195.N

IMPERATIVE: Respect the safety and cleanliness requirements.

WARNING: Before disconnectng the battery, partially open the door windows.

Removing.

IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure Diesel injection (HDi) engines.

Remove the engine cover.

Disconnect the negative terminal of the battery.

Raise and support the front of the vehicle.

Remove:

- The under-engine sound-deadening.

- The front RH wheel.

- The front RH splash-shield (see corresponding operation).

61

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Remove:

- The air duct between the air/air exchanger and the air inlet housing (6).

- The air inlet housing (6).

Uncouple, plug and move aside the pipes (2) and (3) using tool [1].

Detach and move aside the electrical harness.

Remove:

- The header tank fixing (1).

- The "Swirl" electrovalve fixings (7).

Move aside:

- The "Swirl" electrovalve (7) with its support.

- The header tank (1).

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Position the lifting bracket [6] at "a".

Support the engine by means of a workshop hoist.

Remove:

- The upper RH engine support tie bar, and the upper RH engine support (5).

- The engine support (4) on the chassis member.

- The accessories drive belt (8) (see corresponding operation).

- The engine support (12), the crankshaft pulley (9), the upper timing covers (11).

- The lower timing cover (10).

Line up one of the three holes "b" on the pulley with the hole on the body of the coolant pump.

Immobilise the coolant pump pulley, using tool [6].

Remove the coolant pump pulley (13).

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62

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Position the camshaft pegging holes "c" and "e" at "d" and "f", 30° 5° in front of the pegging

holes "h" and "g".

NOTE: Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion

screw.

Remove the plug from the pegging hole on the cylinder block.

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NOTE: Turn the engine by means of the crankshaft pinion screw to bring it to the pegging position

(following the arrow).

Peg the crankshaft using the tool [2].

NOTE: Removing the particle filter and catalytic converter flexible pipe assembly facilitates the

removal of the plug from the pegging hole and the positioning of tool [2].

B1DP1MOC

63

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Peg the camshafts, using tools [3] at "h" and "g".

Slacken:

- The 3 screws (15) of the camshaft pulley (23).

- The 3 screws (17) of the camshaft pulley (18).

- The screw (21) of the tensioner roller (20).

Remove the timing belt (22).

Checks.

IMPERATIVE: Just before refitting, carry out the checks below.

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Check that the rollers (16), (20) and (19) and the coolant pump (14) can turn freely (without play

and without any tight spot).

Check that there are no signs of oil leaks (from the crankshaft and camshaft seals).

Check that there are no signs of coolant leaks (from the coolant pump).

Replace components that are faulty (if necessary).

Refitting.

Reposition the timimg belt on the crankshaft pinion (24).

Hold the timing belt (22) in position, using tool [4].

Tighten the screws (15) and (17) by hand.

Turn the camshaft pulleys (23) and (18) clockwise, to place them at the end of slots.

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64

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Reposition the timimg belt, strip «j» well tensioned, in the following order:

- Guide roller (19).

- Camshaft pulley (18).

- Guide roller (16).

- Camshaft pulley (23).

- Tensioner roller (20).

NOTE: If necessary, turn the pulleys (23) and (18) slightly anti-clockwise (the offset must not be

more than one tooth).

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Remove the tool [4].

Using a hexagonal spanner, rotate the tensioner roller (20) anti-clockwise.

Position the index "l" facing the notch "k".

Tighten the screw (21)

: 2,5 0,2.

Remove the screws (15) and (17) from the pulleys (23) and (18) in order to check that the screws

(15) and (17) are not at the end of slots.

IMPERATIVE: If the screws (15) and (17) are at the end of slots, restart the operations to refit

the timing belt.

B1EP1JJC

65

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Tighten the screws (15) and (17)

: 2,2 0,2.

Remove tools [2] and [3].

Rotate the crankshaft 8 times in the normal direction of rotation.

Fit the tool [2].

Peg the camshafts using tools [3], at "h" and "g".

NOTE: If it is not possible to refit the tools [3], slacken the screws (15) and/or (17) of the camshafts

and drive the camshafts by means of their central screws (25) and/or (26).

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Peg the camshafts using tools [3], at "h" and "g".

Tighten the screws (15) and (17)

Remove tools [2] and [3].

: 2,2 0,2.

Rotate the crankshaft 8 times in the normal direction of rotation.

Fit the tool [2].

Fit the tools [3], at "h" and "g".

Check that the index "l" of the tensioner roller (20) is facing the notch "k".

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66

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Remove tools [2] and [3].

Refit: The lower timing cover (10), the upper timing covers (11), the crankshaft pulley (9), the engine

support (12), the coolant pump pulley (13), the accessories drive belt (8) (see corresponding operation),

the engine support (4) on the chassis member, the upper RH engine support (5) and the upper RH

engine support tie bar.

Take away the workshop hoist.

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Remove the tool [6].

Refit the "Swirl" electrovalve (7) with its support, the header tank (1), the electrical harness.

Remove the tool [1].

Reposition and couple the pipes (3) and (2).

Complete the refitting.

B1EP1JJC

67

Engine -> Checking and Setting the Valve Timing for Your Citroen C6 4 Door First Generation (2005-2012)

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