2005 CITROEN C6 engine

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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
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.
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].
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ENGINE
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.
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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ENGINE
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).
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.
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ENGINE
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).
Peg the camshafts using tools [3], at "h"and "g".
Tighten the screws (15)and (17) : 2,2 ± 0,2.
Remove tools [2]and [3].
Rotate the crankshaft 8 timesin 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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