Changing the timing gear drive belts

WARNING:
The pulley tends to turn away from the correct position as the camshaft interacts with the inlet valve of cylinder no. 3.
For this reason, use the special ratchet wrench N° 1.822.008.000 (A.5.0195) to keep the pulley in the correct position for fitting the belt.

• Turn the crankshaft a few times in its direction of rotation to allow the belts to take their final position.

1. Check the engine timing.

• Turn the crankshaft by 90° in its direction of rotation, until the notch "●" on the flywheel is aligned with the fixed reference.

1. Slacken the right-hand belt tensioner nut, then tighten it to the specified torque.

• Turn the crankshaft by 360° in its direction of rotation until the notch "•" on the flywheel is aligned with the fixed reference.
• Proceed as described for tightening the left-hand belt tensioner.

WARNING:
During this operation do not exert pressure on the belt tensioner to avoid changing the load foreseen for it.

• Upon completion of the operations described, check that the timing reference marks coincide.
• Complete refitting operations reversing the sequence described for removal.

CHANGING THE TIMING GEAR DRIVE BELTS

Specific for 16V

• Disconnect the battery (-) terminal.
• Drain the fluid from the air conditioning system (see GROUP 50).

1. Unscrew the two plugs under the crankcase and drain the coolant fluid into a suitable recipient.

The anti-freeze mixture used as coolant fluid can damage the paintwork: therefore avoid touching painted components.

• Remove the radiator grille and the front bumper (see GROUP 70).

1. Disconnect the bonnet opening cable from the lock.
2. Slacken the fastening screws and remove the radiator upper crossmember.