Contents: Petrol engines ⬇ Diesel models ⬇
Petrol engines
Removal
1. Set the parking brake, jack up the front of the car and place it on supports, then remove the right front wheel. Unscrew the mounting screws, release the clamps and remove the wheel arch protection liner and (with appropriate equipment) engine crankcase protection.
2. Remove the air cleaner housing and the air intake ducts together with the air mass sensor (see Chapter Power and exhaust systems).
3. Loosen the belt tension - turn the tensioner lever, overcoming the resistance of the spring. Remove the belt from the pulleys (see Chapter Routine maintenance).
4. If the belt is to be reused, mark its original direction of rotation with paint or a marker.
5. Remove the center mounting bolt and remove the tensioner assembly from the support bracket.
On some models, the tensioner assembly may be secured with two bolts.
(The source is on the online website: «opelbook»)
Installation
1. Install the tensioner unit on the support bracket, making sure that the protrusions on the mating surface of the tensioner fit into the corresponding recesses in the bracket. Screw in the mounting bolts and tighten them to the required force.
On models with two tensioner mounting bolts, there are no protrusions on the mating surface.
2. Keeping the tensioner spring cocked, place the belt on the pulleys (see Chapter Routine maintenance).
3. Reinstall the mudguard and engine guard, then lower the vehicle to the ground and tighten the wheel bolts to the specified torque.
Diesel models
Removal
Models with 1.7L SOHC engine
1. Only models with air conditioning are equipped with a generator drive belt tensioner. On other models, the belt tension is achieved by turning the generator (see Chapter Routine maintenance).
2. Set the parking brake, jack up the front of the vehicle and place it on supports, then remove the right front wheel. If so equipped, unscrew the mounting screws and remove the engine crankcase guard.
3. Remove the air cleaner housing and the air intake ducts together with the air mass sensor (see Chapter Power and exhaust systems).
4. If the belt is to be reused, mark its original direction of rotation with paint or a marker.
5. Loosen the belt tension by turning the tensioner bolt head clockwise.
6. Remove the belt from the pulleys (see Chapter Routine maintenance).
7. Remove the mounting bolts and remove the tensioner assembly from the A/C compressor support bracket. The authors of this Manual do not recommend further disassembly of the tensioner.
Models with 1.7L DOHC engine
1. Set the parking brake, jack up the front of the vehicle and place it on supports, then remove the right front wheel. If so equipped, unscrew the mounting screws and remove the engine crankcase guard.
2. If the belt is to be reused, mark its original direction of rotation with paint or a marker.
3. Keeping the tensioner spring in the cocked position, remove the belt from the pulleys (see Chapter Routine maintenance).
4. Unscrew the mounting bolt and remove the intermediate roller.
5. Remove the center mounting bolt and remove the tensioner assembly from the generator support bracket.
6. Remove the central mounting bolt and remove the tensioner assembly from the generator mounting bracket. The authors of this Manual do not recommend further disassembly of the tensioner.
Models with 2.0L engines
1. Remove the air cleaner and air intake ducts (see Chapter Power and exhaust systems).
2. Remove the drive belt (see Chapter Routine maintenance).
3. Unscrew the tensioner mounting bolt and the bolt securing its lower strut.
Installation
Models with 1.7L SOHC engine
1. Position the tensioner assembly on the A/C compressor support bracket. Install the mounting bolts and tighten them to the specified torque.
2. Keeping the tensioner spring cocked, place the belt on the pulleys (see Chapter Routine maintenance).
3. Install the engine guard and front wheel. Lower the vehicle to the ground and tighten the wheel bolts to the required torque.
Models with 1.7L DOHC engine
1. Position the tensioner assembly on the generator support bracket. Tighten the center bolt to the specified torque.
2. Install the intermediate roller and tighten its mounting bolt to the required force.
3. Keeping the tensioner spring in the cocked position, place the belt on the pulleys (see Chapter Routine maintenance).
4. Install the engine guard and wheel. Lower the vehicle to the ground and tighten the wheel bolts to the required torque.
Models with 2.0L engines
1. Install the tensioner and strut, screw in and tighten the mounting bolts to the required torque.
2. Keeping the tensioner spring cocked, place the tensioner on the pulleys (see Chapter Routine maintenance).
3. Reinstall the air cleaner and air ducts (see Chapter Power and exhaust systems).
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