Welcome T HEPBURNLeading source of Online Diagnostic & Repair Information
Timing belt, replacing
999 5433 COUNTERHOLD See: Tools and Equipment999 5433 Counterhold
Note! Since the illustrations in this service information are used for different model years and/or models, some variation may occur. However, the essential information is always correct.
Caution! Remove the ignition key.
- the cross stay between the suspension turrets
- the upper timing belt cover
- the servo reservoir and the expansion tank.
Lift up and place on top of the engine.
Warning! Make sure that no power steering fluid is spilled. Extremely flammable.
- the auxiliaries belt
- the front timing belt cover.
Position the engine according to the marking
- Remove the right front wheel
- Remove the nut from the cover in the wing liner
- Install the upper timing belt cover
- Turn the crankshaft clockwise until the markings on the crankshaft and camshaft pulley correspond
- Turn the crankshaft a further 1/4 turn clockwise and then back again until the markings correspond.
The markings are illustrated
- Remove the upper timing belt cover.
Removing the timing belt
Slacken off the belt tensioner.
Slacken off the centre screw for the belt tensioner slightly.
Hold the centre screw still. Turn the tensioner eccentric clockwise using a 6 mm Allen key to 10 o’clock.
Remove the timing belt from the tension pulley, camshaft pulley and water pump.
Remove the vibration damper.
Remove the oscillation damper. Use counterhold 999 5433 COUNTERHOLD See: Tools and Equipment999 5433 Counterhold. Work the oscillation damper loose.
Remove the timing belt
Checking the tensioner pulley and idler pulley
Check bearing wear:
- spin the idler pulley and listen for noise.
If replacing with a new idler pulley, tighten to 24 Nm .
- spin the tension pulley and listen for noise.
When replacing, screw the tension pulley into place using the centre screw.
Screw in the centre screw by hand.
Ensure that the tensioner fork is centered over the cylinder block rib.
Ensure that the Allen hole on the eccentric is at “10 o’clock”.
Installing the timing belt
Note: For information regarding Variable Valve Timing see: Variable Valve Timing Actuator, Adjustments See: Engine, Cooling and ExhaustEngineVariable Valve Timing ActuatorAdjustments
Also see Belt Drive, Assembly See: Belt Drive, Assembly
Install the timing belt over the pulley on the crankshaft.
Install the oscillation damper. Tighten the center nut to 180 Nm . Use counterhold 999 5433 COUNTERHOLD See: Tools and Equipment999 5433 Counterhold.
Remove the counterhold and install new screws. Tighten the screws to 25 Nm . Angle-tighten 30°
Install the new belt in the following order:
- the idler pulley
- intake camshaft pulley
- exhaust camshaft pulley
- water pump
- belt tensioner.
Tighten the timing belt
This adjustment is carried out on a cold engine. A suitable temperature is approximately 20°C/68°F.
At higher temperatures, for example with the engine at operating temperature or at higher ambient temperature, the needle is further to the right.
The illustration shows the position of the indicator when aligning the timing belt tensioner at different temperatures.
For engine serial no. up to 3188688