Get Engine -> Checking and Setting the Valve Timing Guide for Citroen C3 SUV First Generation (2002-2009)

CHECKING AND SETTING THE VALVE TIMING

Petrol

TU

Diesel

DV

1

3

5

4

JP

JP4TD

TED4

8HW

Engine type

C3

HFX

X

KFV

X

NFU

X

8HX

X

8HV

X

8HY

X

See pages :

59 to 68

69 to76

77 to 85

58

CHECKING AND SETTING THE VALVE TIMING

Engines : HFX - KFV - NFU

Tools.

[1] Engine flywheel peg

[2] Camshaft pulley peg

[3a] Camshaft peg

[3b] Camshaft peg

[4] Dynamic tensioner roller pin

[5] Belt retaining pin

: 4507-T.A

: 4507-T.B

: 4533-TA.C1

: 4533-TA.C2

: 4200-T.H

: 4533-T.AD

: 7504-T.

[6] Pliers for removing plastic pins

Checking the valve timing.

Engines HFX - KFV - NFU

Raise and support the front RH side of the vehicle.

Disconnect the battery positive terminal.

Engage 5th gear.

Remove the oil filter (1).

HFX – KFV engine

Remove :

The timing top casing (2).

Turn the wheel to rotate the engine (normal direction of rotation).

Peg the camshaft pulley, using tool [2].

B1BP2M7C B1BP2M8C

B1BP2M9C

59

CHECKING AND SETTING THE VALVE TIMING

Engine : NFU

Checking the timing (continued)

Engine: NFU

Place a jack under the engine, peg the engine.

Remove:

- The engine support (4) complete.

- The timing casing (3).

- The sparking plugs (eases engine rotation).

Turn the wheel to rotate the engine (normal direction of rotation).

Position the pegs [3a] and [3b].

Peg the flywheel, using tool [1].

If the setting is not correct, recommence the operation.

Remove the tools [1], [2], [3a] and [3b].

Complete the refitting.

B1BP2MAC B1EP18MC

B1BP2MBC

60

CHECKING AND SETTING THE VALVE TIMING

Engines : HFX - KFV

Setting the timing

Preliminary operation.

Lift and support the vehicle, wheels hanging.

Disconnect the battery.

Remove:

- The front RH wheel.

- The splash-shield, using tool [6]

- The accessories belt (See corresponding operation).

- The crankshaft pulley.

- The oil filter.

Place a jack under the engine, peg the engine.

Removing.

HFX – KFV engine

Turn the engine by means of screw (1). (normal direction of rotation).

Remove the timing casings.

Peg the camshaft pinion, using tool [2].

Peg the flywheel, using tool [1].

Remove:

- The fixing screws (2).

- The upper engine support (3).

B1BP2MCC B1BP2M9C

B1BP2MBC B1BP2MDC

61

CHECKING AND SETTING THE VALVE TIMING

Engines : HFX - KFV

Setting the timing (continued)

HFX – KFV engines

Slacken the screws (4) without removing them.

Remove the bottom engine support assembly (5), and the fixing screws (4).

Slacken the nut (6).

Completely detension the belt by acting on the tensioner roller (7).

Remove the timing belt.

IMPERATIVE : Check that the tensioner roller turns freely (no tight spot).

B1BP2MEC B1EP18NC

62

CHECKING AND SETTING THE VALVE TIMING

Engine : NFU

NFU engine.

Setting the timing (continued)

Remove:

The bottom plastic casing.

The engine support (9).

The middle support.

The timing cover (8).

Peg the flywheel, using tool [1].

Position the tools [3a] and [3b].

B1BP2MFC B1BP2MBC

B1EP18MC

63

CHECKING AND SETTING THE VALVE TIMING

Engine : NFU

Setting the timing (continued)

NFU Engine

Slacken the tensioer roller.

Turn the tensioner roller so as to be able to position the tool [4], with the aid of an Allen key placed at «a».

Turn the tensioner roller towards the right to bring it to the index «c» in position «b».

Peg the tensioner roller in this position in order to slacken the timing belt to the maximum.

IMPERATIVE : Never make the dynamic tensioner roller turn by a complete rotation.

Remove the timing belt (8).

Check that the rollers (9) and (10) turn freely (no tight spot).

B1EP18PC B1EP18QC

64

CHECKING AND SETTING THE VALVE TIMING

Engines : HFX - KFV

Setting the timing (continued)

HFX-KFV Engines

Refit.

WARNING: Respect the direction of fitting of the belt: (the arrows «d» indicate the direction of rotation of

the crankshaft).

Refit the timing belt.

Position the timing belt, belt «e» well tensioned, in the following order:

Crankshaft pinion, hold the belt using tool [5].

Camshaft pulley.

Coolant pump pulley.

Tensioner roller.

Remove the pegs [1] and [2].

B1EP18QC

65

CHECKING AND SETTING THE VALVE TIMING

Engines : KFX - KFV - NFU

Setting the timing (continued)

HFX-KFV engines

Refitting.

NOTE : Check that the pegs [1] and [2] are in place.

WARNING: Respect the direction of fitting of the timing belt, the arrows «d» indicate the direction of rotation

of the crankshaft.

Refit the timing belt.

Position the timing belt, belt «e» well tensioned, in the following order:

Crankshaft pinion, hold the belt using tool [5].

- Camshaft pulley.

- Coolant pump pulley.

- Tensioner roller.

Remove the tools [1], [2].

NFU engine.

Fit the timing belt in position in the following order:

- Inlet camshaft pulley.

- Exhaust camshaft pulley.

- Guide roller.

- Crankshaft pulley.

Position tool [5].

- Coolant pump pulley.

- Dynamic tensioner roller.

Remove the tools [1], [3] and [5].

B1EP18RC

66

CHECKING AND SETTING THE VALVE TIMING

Engine : NFU

Timing belt overtensioned:

A : Engines HFX – KFV.

B : Engine NFU

Turn the tensioner roller (7) with the aid of a hexagonal spanner at «a».

Bring the index «c» to position «f», to tension the belt to the maximum of the

interval indicated.

Hold the tensioner roller (7), using tool [4].

Tighten the fixing nut of the tensioner roller, tightening to 1 ± 0,1 m.daN.

Turn the crankshaft by 4 rotations (normal direction of rotation).

IMPERATIVE : Never make the crankshaft rotate backwards.

Make sure that the timing is correctly set by refitting the tools [1], [2] and [3].

Remove the tools [1], [2] and [3].

B1EP18SD

67

CHECKING AND SETTING THE VALVE TIMING

Engines : HFX - KFV - NFU

Adjusting the fitting tension of the timing belt

A : Engines HFX – KFV.

B : Engine NFU.

Slacken the nut while maintaining the position of the tensioner roller, with the aid of

a hexagonal spanner at «a».

Next bring the index «c» to its adjusting position «a».

The index «c» should not go beyond the notch «g».

WARNING: The index «c» must not go beyond the notch «g». If it should do this, restart

the timing belt tensioning operation.

Hold the tensioner roller (7) in this position, with the aid of a hexagonal spanner.

Tighten the tensioner roller fixing nut to :

2 ± 0.2 m.daN.

2.2 ± 0.2 m.daN.

(HFX - KFV engines)

(NFU engines)

IMPERATIVE : The tensioner roller must not rotate during the tightening of its

fixing. If it does, restart the timing belt tensioning operation.

Complete the refitting.

68

B1EP18TD

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Tools.

[1] Pliers for removing plastic pegs

[2] Lever for detensioning the dynamic tensioner roller

[3] Engine flywheel setting peg

[4] Camshaft setting peg

: 7504-T.

: (-).0194.E

:.(-).0194.C

: (-).0194.B.

: (-).0194.A.

[5] Crankshaft and high pressure pump setting peg

Preliminary operations.

Remove:

- The front RH wheel.

- The front RH splash-shield, using tool [1].

- The clips of the electrical harness on the upper timing cover.

- The accessories belt, using tool [2] (see corresponding operation).

Check ing the setting.

Disconnect the battery negative cable.

Remove the upper timing cover (1).

Rotate the engine using the screw (2) of the crankshaft pulley.

NOTE : The locking hole is located under the crankshaft bearing cap cover.

Undo the screw (2).

Detension the auxiliary drive belt dynamic tensioner roller, using tool [2].

B1BP2LXC

69

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Check ing the setting (continued)

Remove:

- the accessories drive belt.

- the accessories drive pulley.

- the lower timing cover (3).

IMPERATIVE : The magnetic track should show no signs of

damage and should not be approached by any other source of

magnetism.

Reposition the screw (2).

Remove tool [3].

Rotate the engine by means of the crankshaft pinion screw (2)

(clockwise), to bring it to the pegging position.

Position the tool [4].

Peg the crankshaft pinion (1), using tool [5].

Peg the high pressure pump pinion, using tool [5].

NOTE : Index «a» of the roller tensioner must be centred within

the area «b».

Check the correct positioning of index «a».

Remove tools [4] and [5].

Rotate the engine ten times.

Fit the tools [4] and [5].

If pegging is not possible, carry out the operation to remove/refit the

timing belt. (See corresponding operation).

B1JP03SC B1EP18DC

B1EP18EC B1EP18FC

70

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Setting the timing.

Remove the upper timing cover (1).

Rotate the engine by means of the crankshaft screw (2).

NOTE : The pegging hole is located under the crankshaft bearing cap cover.

Peg the engine flywheel, using tool [3].

Remove the lower timing cover (3).

Uncouple the exhaust line from the manifold.

IMPERATIVE : Uncouple the exhaust line in order to avoid damaging the front flexible pipe. Twisting,

pulling and bending the front flexible pipe reduces its life.

Remove:

- The engine speed sensor (6).

- The belt retaining stop (5).

- The screw (2).

- The crankshaft pinion (4) (with its magnetic track «a»).

IMPERATIVE : The magnetic track should show no signs of damage and should not be approached

by any other source of magnetism. Should this not be adhered to, it is essential to replace the

crankshaft pinion.

Refit the screw (2).

B1BP2LXC B1EP18GC

71

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Setting the timing (continued).

Remove the tool [3].

Rotate the engine by means of the crankshaft pinion screw (2)

(clockwise), to bring it to the pegging position.

Peg the camshaft pulley, using tool [4].

Peg :

- The crankshaft pinion (6), using tool [5].

- The high pressure pump pinion, using tool [5].

Support the engine with the aid of a roller jack equipped with a chock.

Remove:

- The RH engine support (7).

- The intermediate engine support (right hand side) (8).

B1JP03SC B1EP18DC

B1EP195C B1BP2LYC

72

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Setting the timing (continued).

Hold the tensioner roller, using a hexagonal spanner at «b».

Slacken the screw (9).

Remove the timing belt (10).

Refitting.

IMPERATIVE : Check that both the tensioner roller and the fixed roller turn freely

(no tight spots). If this is not the case, replace the rollers.

Fitting of the pulleys.

- Camshaft pulley

- Fuel high pressure pump pulley

Tighten to 4.3 ± 0.4 m.daN.

Tighten to 5 ± 0.5 m.daN.

The crankshaft pinion is located without a screw at the end of the crankshaft.

Fitting of the rollers.

IMPERATIVE : Check that the tensioner roller turns freely (no tight spot).

Otherwise, replace the rollers.

- Guide roller

- Tensioner roller

Tighten to 4.5 ± 0.4 m.daN

Pre-tighten to 0.1 m.daN

Check the condition of the seals at the camshaft and at the crankshaft pinion..

B1EP18HC

73

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Setting the timing (continued).

NOTE : Screw (9) slackened.

Position the timing belt (10) observing the following sequence:

Crankshaft pinion (4).

Guide roller (12).

Camshaft pulley (11), (check that the belt is held correctly against the roller).

Coolant pump pinion (13).

Fuel high pressure pump pulley (15).

Tensioner roller (14).

B1EP18JD

74

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Setting the timing (continued).

Turn the tensioner roller to the right to bring the index «c» to position «d», using a

hexagonal spanner.

Tighten the screw (9) of the tensioner roller, tighten to 3 ± 0.3 m.daN.

Remove the tools [4] and [5].

Rotate the engine ten times (check that the timing pinion is correctly up against the

crankshaft)..

Check:

The pegging of the camshaft.

The crankshaft pinion.

The fuel high pressure pump pinion (15).

The correct positioning of the index of the dynamic tensioner.

If these are not correct, repeat the operation to position the timing belt.

Refit:

The engine speed sensor (6).

The belt retaining stop (5), tighten to 0,7 m.daN.

B1EP18KC

75

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HX - 8HW

Setting the timing (continued).

Refit:

The intermediate RH engine support, tighten the screws (16) to 5,5 ± 0,5 m.daN.

The RH engine support, tighten the screws (17) to 4,5 ± 0,4 m.daN.

The bottom timing cover (3).

Immobilise the engine flywheel, using tool [3].

Remove the screw (2).

Refit the accessories drive pulley and tighten to:

Pre-tighten to

Angular tighten to

Remove tool [3].

Refit:

: 3 ± 0,3 m.daN.

: 180° ± 1°,8’

The top cover (1).

The accessories belt (see corresponding operation).

The exhaust line (see corresponding operation).

The front RH splash-shield.

The front RH wheel.

B1EP18LC B1BP2LZC

76

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Tools.

[1] Engine flywheel peg Ø 12 mm

[2] Camshaft pulley peg Ø 8 mm

[3] Crankshaft pulley peg Ø 5 mm

: (-).0194-C.

: (-).0194-B.

: (-).0194-A.

Preliminary operations.

Remove:

- The front RH wheel.

- The front RH splash-shield.

- The accessories belt (see corresponding operation).

Uncouple:

- The supply unions (1).

- The air/air heat exchanger inlet/outlet pipes (3).

- The exhaust line (at the flexible pipe).

Disconnect the connector (2).

Support the engine by means of a roller jack equipped with a chock.

Remove the engine supports (4) and (5).

B1BP2N0C

77

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Checks.

Rotate the engine to engage it (normal direction of rotation).

Immobilise the engine flywheel at «a», using tool [1].

Move aside the harness (6).

Remove:

- The engine support (7).

- The screw (8).

- The pulley (9).

- The lower timing cover (10).

- The upper timing cover (11).

- The tool [1].

B1BP2N1C B1BP2N2C

78

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Checks (continued).

Refit the screw (8).

Rotate the crankshaft six times (clockwise).

IMPERATIVE : Never rotate the engine backwards.

Peg :

- The camshaft, using tool [2]. (Oil the pegs.)

- The fuel high pressure pump pulley (14), using tool [3] at «c».

WARNING: The magnetic track should show no signs of damage and should not

be approached by any source of magnetism.

Peg the crankshaft at «b», using tool [3].

IMPERATIVE: Should it be impossible to peg the camshaft, check that the

offset between the hole in the camshaft pinion and the pegging hole is not

greater than 1 mm.

Otherwise repeat the operation to position the timing belt. (See corresponding

operation).

B1EP18YD

79

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Checks (continued).

NOTE : The index «e» of the dynamic tensioner roller should be centred within the area «d».

Check the correct positioning of the index «e».

If it is not correct, repeat the operation to tension the timing belt (see corresponding operation).

Refitting.

Refit the tool [1] at «a».

Remove the screw (8).

Refit:

- The upper timing cover (11).

- The lower timing cover (10).

- The accessories drive pulley (9).

- The screw (8).

Tightening torque:

- Screw (8) :

Pre-tighten to

Angular tightening

Remove the tool [1].

: 3 ± 0,3 m.daN.

: 180° ± 5°.

B1EP18ZC

80

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Checks (continued).

Refit :

- The engine support (7), tighten to 1,5 ± 0.4 m.daN.

- The engine support (4), tighten to 6,1 ± 0,. m.daN.

- The engine support (5), tighten to 6 ± 0.6 m.daN.

- The electrical harness (6).

Couple:

- The exhaust line, tighten the collar to : 2.5 ± 0.3 m daN

- The fuel supply unions (1).

- The air/air heat exchanger inlet/outlet pipes (3).

Connect the connector (2).

Refit :

- The accessories belt (see corresponding operation).

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

- The front RH road wheel, tighten to 9 ± 1 m.daN.

Reconnect the battery.

B1BP2N0C

81

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Setting the timing.

Perform the preliminary operations for checking the timing up to removing tool [1] at «a» for

immobiling the engine flywheel.

Refit screw (8).

Rotate the crankshaft to bring the camshaft towards its pegging point.

Peg the camshaft, using tool [2]. (Oil the pegs).

WARNING: Do not press or damage the track which is the target for the engine speed sensor (14).

Peg the crankshaft at «b», using tool [3].

Remove:

- The timing protector (13).

- The engine speed sensor (14).

Slacken the screw (12) of the tensioner roller, keeping it slack with the aid of a hexagonal spanner

at «c».

Detension the belt by pivoting the tensioner roller (clockwise).

Remove the timing belt, commencing with the coolant pump pinion.

Peg the pulley (15), using a 5 mm diameter peg at «d».

B1EP18VD

82

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Setting the timing (continued).

Checking the setting.

IMPERATIVE : Just prior to refitting, carry out the following tests:

Check that:

- the rollers and the coolant pump operate freely

(no play and no tight spot).

- there are no traces of oil

(from the crankshaft and camshaft sealing rings).

- there is no leak of coolant fluid (from the coolant pump).

- the target track of the engine speed sensor (14) is not damaged or scratched.

(If necessary replace the defective components).

Refitting

Fit the timing belt on the crankshaft pinion.

Position the belt on the guide roller, with the belt well tensioned.

Refit:

- The timing protector (13).

- The sensor (14).

B1EP18WD

83

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Setting the timing (continued).

Checks (continued).

Reposition the timing belt, belt at «e» well tensioned, in the following order:

- Guide roller (17).

- Camshaft pulley (16).

- Fuel high pressure pump pulley (15).

- Coolant pump pinion (18).

- Tensioner roller (19).

Remove the 5 mm diameter peg at «d».

Adjusting the fitting tension of the belt.

Action the tensioner roller (19) to align the marks «f» and «g» , avoiding detensioning the timing belt,

with the aid of a male hexagonal spanner, at «c».

If this is not successful, repeat the operation to tension the belt.

Hold the tensioner roller in position (19).

Tighten the tensioner roller, tightening to 3,7 ± 0,3 m.daN.

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

Remove tools [2] and [3].

Turn the crankshaft six rotations (clockwise).

B1EP18XC

84

CHECKING AND SETTING THE VALVE TIMING

Engines : 8HY - 8HV

Adjusting the timing belt tension (continued).

IMPERATIVE : Never rotate the engine backwards.

WARNING : Do not touch or damage the track of the target of the engine speed sensor (14).

Peg the crankshaft, using tool [3].

Check the position of the tensioner roller (the alignment of the marks «f» and «g» should

be correct).

If this is not the case, repeat the operation to tension the belt.

Peg the camshaft pulley, using tool [2].

IMPERATIVE : Should it be impossible to peg the camshaft, check that the offset bet-

ween the camshaft hole and the pegging hole is not more than 1 mm. If the offset is

too great, repeat the operation.

Remove the pegs [2] and [3].

Refit tool [1] at «a».

Remove the screw (8).

Complete the refitting.

B1EP18XC

85

Engine -> Checking and Setting the Valve Timing for Your Citroen C3 SUV First Generation (2002-2009)

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