ESP CITROEN C6 2005 User Guide

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ENGINE
51
CHECKING THE VALVE TIMING
Engine: ES9A
Tools.
[1]Camshaft setting pegs: (-).0187.B
[2]Crankshaft setting peg: (-).0187.A
[3]Fuel pressure take-off union: 4192-T
[4]Belt retaining pin: (-).0187.J
[5]Exhaust camshaft hubs immobilising tool: (-).0187.F
[6]Inlet camshaft hubs immobilising tool: FACOM D12
[7]SEEM belt tension measuring equipment: 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).
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ENGINE
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.
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.
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ENGINE
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 rotationsclockwise.
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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ENGINE
CHECKING THE VALVE TIMING
Engine: DT17BTED4
Tools.
[1]Set of plugs: (-).0188-T
[2]Flywheel setting peg (double flywheel): (-).0195.K Toolkit 0188-T
[3]Camshaft setting pegs: (-).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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ENGINE
CHECKING THE VALVE TIMING
Engine: DT17BTED4
Remove:
- The auxiliary drive belt (5)(see corresponding operation).
- The upper timing covers (6).
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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ENGINE
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).
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.
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: DT17BTED4
Tools.
[1] Kit of plugs: (-).0188-T
[2]Flywheel setting peg (double damping flywheel): (-).0195.K Toolkit 0188-T
[3]Camshaft setting pegs: (-).0195.H Toolkit 0188-T
[4]Belt compressure spring: (-).0188.K
[5]Coolant pump pulley peg: (-).0195.C
[6]Lifting bracket: (-).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).
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ENGINE
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).
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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ENGINE
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.
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.
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ENGINE
EXHAUST SPECIFICATIONS
Engine: ES9A
Repair.
Respect the precautions to be taken prior to any operation:
- The front flexible pipe must be protected against any external mechanical damage.
- The front flexible pipe must not come into contact with corrosive products.
- Do not deform the front flexible pipe more than 20°angular (X), 20 mm axial, 25 mm shearing
(Y)(front flexible pipe removed).
- Do not deform the front flexible pipe more than 3°angular (X), 0 mm axial, 3 mm shearing (Y)
(front flexible pipe in place).
WARNING: Non-respect of these precautions will shorten the life of the flexible pipe.
It is therefore imperative to disconnect or remove the exhaust line for any operations
necessitating lifting of the engine-gearbox.
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