Models with 4-cylinder engines
Alternator V-belt up to August 91: Loosen the clamping bolt on the alternator adjusting bar.
Turn the adjusting ring nut below until the correct belt tension is achieved.
Tighten clamping bolt.
If the alternator cannot be moved, then the pivot bolt must be loosened.
It becomes accessible from the front by removing the toothed belt guard.
If the pivot bolt has been loosened, it should be re-tightened as a last resort.
Alternator V-belt from September 91: Loosen the clamping bolt on the alternator mounting bracket.
Loosen the hinge bolt at the bottom of the alternator, check for ease of movement.
Tighten to 6 Nm and hold the geared adjusting nut with a 22 mm ring wrench with a torque head. This will ensure that the belt tension is correct for the new belt installed.
Tighten clamping bolt.
If you need to check the tension of the old alternator belt, tighten the nut with a torque of 4 Nm.
Lastly, tighten the pivot bolt again.
V-belt for water pump and power steering pump: remove the lower protection of the engine compartment (chapter «Body elements»).
Loosen the clamp bolt on the power steering pump mounting bracket.
Turn the adjusting ring nut below until the correct belt tension is achieved.
Tighten clamping bolt.
If the power steering pump cannot be moved, then its pivot bolt must be loosened.
A/C Compressor V-Belt: Belt tension is adjusted by removing or adding shims between the front and rear half of the pulley.
More shims between pulley halves means less belt tension.
Fewer shims between pulley halves results in more belt tension.
Excess shims should be placed between the hub and the front half of the pulley.
Tighten the nuts to a torque of 25 Nm, making sure that the V-belt does not jam between the pulley halves.
Turn the crankshaft twice.
Check the belt tension by firmly pressing the thumb on the free space between the crankshaft and the air conditioning compressor.
Start the engine and let it run for a bit.
Recheck the tension of the V-belt, add or remove shims if necessary.
With the correct belt tension, tighten the bolts again to 25 Nm.
Models with 5- and 6-cylinder engines
The tension of the V-ribbed belt is provided by a tension roller loaded with spring force. No regulation required.
If the spring is broken, then the belt sags freely over the pulleys. In this case, the tensioner must be replaced.
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