Removal
Remove the air intake (if necessary).
Petrol engines and diesel engines with a capacity of 1.7 liters
Loosen the lower generator support bolt.
Loosen the clamping bar mounting bolt and tilt the generator towards the engine, thus loosening the V-belt.
Remove the belt.
1.7L turbodiesel engine
Loosen the generator mounting bolts and tilt it to the side.
Remove the V-belt.
Installation
Put on the V-belt.
Tension
Use a crowbar to move the generator away from the engine and secure the tension bar.
Check the tension of the V-belt and adjust if necessary.
Checking the tension
Attention! In workshops, a special device Opel KM-128-A is used to check the belt tension. If such a device is not available, it is impossible to accurately adjust and check the belt tension, since a new belt must have a large pre-tension. Correct tension of the V-belt significantly increases its service life.
If the above mentioned device is not available, the belt tension can be checked with your thumb by pressing it in the middle between the pulleys. The belt should deflect by approximately 5 mm. However, despite this check, the belt tension should be checked with a device at the next scheduled maintenance, as incorrect tension can cause the belt to slip.
Original posted on the website OpelBook.ru
Install the control device so that the belt passes between guides A, B and C (see fig.).
Press lever A until pin D touches the V-belt. When touched, a beep sounds.
Read the tension value from the device and multiply it by 100. This value corresponds to the belt tension force in Newtons. It should be 250-400 N.
Attention! When installing a new belt, it should be tensioned to 450 N.
If the belt tension value is outside the specified limits, it should be adjusted.
Install the air intake hose if it was removed.
For petrol engines and 1.7 l diesel engines: tighten the generator mounting bolts. Tightening torque for M8 bolts is 25 Nm, for M10 bolts - 50 Nm.
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