Measure the tension of the timing belt (see previous sections).
Slightly loosen the tension roller nut. Do not allow the roller to move along the eccentric yet.
Insert a screwdriver into one of the holes in the camshaft timing belt pulley.
Turn the camshaft pulley slightly to the left to relieve the toothed belt at the tension roller.
Now, using a small hammer, carefully hit the tension roller on the left so that it slides slightly to the right and thus tightens the belt. Meanwhile, the timing belt pulley must be held.
Tighten the tension roller nut again.
Measure the belt tension.
It is necessary to check the start of the fuel pump supply.
When the cover is removed, you can see how the toothed belt is positioned (1). 2 - camshaft toothed belt pulley: 3 - fuel pump toothed belt pulley; 4 - Tension roller: here with hexagonal mounting nut; 5 - wedge
[The information is available on the website vwmanual.ru]
This is how the tension of the toothed belt is checked using a special device VW 210. If the value of 12-13 is reached, then the tension is correct.
If the belt pressure has to be adjusted without a special key, then first use a screwdriver to slightly move the pulley (1) of the camshaft toothed belt to the left. This relieves the toothed belt at the tension roller (2). After loosening the nut, you can now lightly hit the tension roller with a hammer and thereby move it slightly to the right, which will create belt tension.
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