2005 Citroen XSARA PICASSO Workshop Manual

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HX - 9HY - 9HZ
Tools.
[1] Flywheel setting peg: (-).0194.C
[2]Camshaft setting peg: (-).0194.B
[3]Crankshaft setting peg: (-).0194.A
IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure Diesel
injection (HDi) engine versions.
Checking and setting the timing.
Raise and support the vehicle, wheels hanging.
Disconnect the battery.
Uncouple:
- The fuel supply unions (1).
- The air/air heat exchanger inlet and outlet pipes (3).
- The exhaust line at the flexible pipe.
- Disconnect the connecteur at «a».
Remove the accessories drive belt
(see corresponding operation).
Support the engine with a roller jack equipped with a block.
Remove the four screws (5), the three screws (4)and the engine supports (3).
B1BP38TD
B1BP38UD
C4
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 9HX - 9HY - 9HZ
Checking and setting the timing (continued).
Turn the engine in the normal direction of rotation until the peg [1]engages in the setting hole.
Peg the flywheel at «b», using tool [1].
Move aside the electrical harness (6).
Remove:
- The engine support (7).
- The screw (8).
- The accessories drive pulley (9).
- The lower timing cover (10).
- The upper timing cover (11).
- The tool [1].
Refit the screw (8).
Rotate the crankshaft to bring the camshaft to its pegging point.
Peg:
- The camshaft at «c», using tool [2]
(oil the pegs).
- The fuel high pressure pump pulley (15)at «f»using a 5 mmdiameter peg.
WARNING: Do not touch or damage the track of the engine speed sensor target (14).
B1BP305C
B1EP1HJD
C4
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HX - 9HY - 9HZ
Checking and setting the timing (continued).
Peg the crankshaft at «e», using tool [3].
Remove:
- The timing belt protector (13).
- The engine speed sensor (14).
Slacken the screw (12)of the tensioner roller and keep it slackened using an allen spanner at «d».
Detension the timing belt by pivoting the tensioner roller
(clockwise).
Remove the timing belt, starting with the coolant pump pinion.
Checks.
ESSENTIAL: Just prior to refitting, proceed to the checks as below.
Check:
- That the rollers and the coolant pump pulley turn freely
(without play and without tight spot).
- That there are no signs of oil leaks (at the crankshaft and camshaft seals).
- That there are no leaks of coolant fluid (at the coolant pump).
- That the track of the engine speed sensor target (14)is not damaged or scratched.
Replace any components that are defective
(if necessary).
B1EP1HMC
C4
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 9HX - 9HY - 9HZ
Checking and setting the timing (continued).
Refitting.
Fit the timing belt on the crankshaft pinion.
Position the belt on the guide roller, belt well tensioned.
Refit:
- The timing belt protector (13).
- The engine speed sensor (14).
Reposition the timing belt, strip «f»well tensioned, in the following sequence:
- Guide roller (17).
- Camshaft pulley (16).
- Fuel high pressure pump pulley (15).
- Coolant pump pulley (19).
- Tensioner roller (18).
B1EP1HMC
C4
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HX - 9HY - 9HZ
Adjusting the timing belt tension.
Act on the tensioner roller (18)to align the marks «j»and «h», avoiding detensioning the timing belt,
using an allen spanner at «d».
Should this fail, repeat the operation to tension the timing belt.
Hold the tensioner roller (18).
Tighten the tensioner roller fixing nut to 3,7 ± 0,3 m.daN.
Check the position of the tensioner roller
(the alignment of the marks «j» and «h»should be correct).
Remove tools [2]and [3].
Rotate the crankshaft six times
(clockwise).
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 «j»and «h»should be correct).
If this is not the case, repeat the operation to tension the timing belt.
Peg the camshaft pulley, using tool [2].
B1EP1HNC
C4
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 9HX - 9HY - 9HZ
IMPERATIVE: Should it be impossible to peg the camshaft, check that the offset between the camshaft hole and the pegging hole is not
more than 1 mm. If the offset is too great, repeat the operation to position the timing belt
(see corresponding operation).
Remove the tools [2]and [3].
Refit tool [1]at «b».
Remove the screw (8).
Refit:
- The upper timing cover (11).
- The lower timing cover (12).
- The pulley (9).
- The screw (8).
Tightening methodfor the screw (8):
- Pre-tighten to 3 ± 0,3 m.daN.
- Angular tighten 180° ± 5°.
Remove tool [1].Refit:
- The engine support (7), tighten to 5,5 ± 0,9 m.daN.
- The engine support (3).
- The four screws (5), tighten to 5,5 ± 0,8 m.daN.
- The three screws (4), tighten to 5,5 ± 0,8 m.daN.
- The electrical harness (6).
Disengage the jack from under the engine.
Complete the refitting.
IMPERATIVE: Carry out the operations that are necessary following
a reconnection of the battery
(see corresponding operation).
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ - 9HY
B1BP304D
Tools.
[1] Flywheel setting peg: (-).0194.C
[2]Camshaft setting peg: (-).0194.B
[3]Crankshaft setting peg: (-).0194.A
Checking and setting the timing.
Removing.
Raise and support the vehicle, wheels hanging.
Disconnect the positive and negative terminals of the battery.
Remove:
- The front RH wheel.
- The front RH splash-shield.
- The accessories drive belt
(see corresponding operation).
Uncouple:
- The fuel supply unions (1).
- The air/air heat exchanger inlet and outlet pipes (3).
- The exhaust line
(at the flexible pipe).
Disconnect the connecter at «a».
Remove and move aside the power steering fluid reservoir (6).
Uncouple, plug and move aside the tube (2).
Support the engine with a roller jack equipped with a block.
Remove the engine supports (4)and (5).
XSARA PICASSO
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ENGINECHECKING AND SETTING THE VALVE TIMING
Engines: 9HZ - 9HY
B1EP1E3D
Rotate the engine to drive it in its normal direction of rotation.
Peg the flywheel, using tool [1]at «b».
Move aside the harness (7).
Remove:
- The engine support (8).
- The screw (10).
- The accessories drive pulley (9).
- The lower timing cover (11).
- The upper timing cov (12).
- The tool [1].
B1BP305C
XSARA PICASSO
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