Audi 100/A6

1990-1997 of release

Repair and car operation

3.1.3.2. A gear belt

THE GENERAL DATA

---

The prevention

Wrong installation of a gear belt can lead to very heavy damages of the engine. At an experience lack address in a workshop.

---

Removal

PERFORMANCE ORDER

1. Remove the bottom casing of a motor compartment. 2. Remove поликлиновый a belt. 3. Remove натяжитель поликлинового a belt. For this purpose натяжитель slowly ослабьте also turn out a bolt with internal шестигранником SW 10. 4. A casing of a gear belt from both parties unfasten and remove. 5. A cranked shaft put about position ВМТ for the cylinder 1. For this purpose a transmission switch to neutral transfer, tighten a manual brake and for the central bolt of fastening of a belt pulley to a cranked shaft turn a cranked shaft in a direction clockwise while the label on belt a pulley – In – will not rise against an adjusting label – A.Zdes is necessary strongly bent ring wrench or replaceable face head SW 24 (doubled шестигранник). 6. Simultaneously the big apertures in adjusting payments of cogwheels of camshafts should be located inside under the relation to each other, otherwise turn a cranked shaft on one turn. 7. In this position a cranked shaft stop. For this purpose turn out on the left side from картера the gauge of the moment of ignition. The gauge is from above картера at height of the average cylinder. 8. Instead of the gauge screw core AUDI-3242 and easily tighten. The core enters thus into an aperture on a counterbalance of a cranked shaft and stops it. Before to roll a core, check up, whether it is visible or whether this aperture is perceived. 9. Turn away 8 bolts with internal шестигранниками гасителя крутильных fluctuations (a pulley клинового a belt on a cranked shaft). The prevention The central bolt do not release. 10. Remove the bottom casing of a gear belt. 11. A bolt of fastening of a tension roller of a gear belt – 1 – release by means of 8 mm of a key with external шестигранником. The Same key a tension roller turn to the right in an arrow direction thanks to what the tension of a gear belt weakens.

THE ENGINE WITH WORKING VOLUME 2,8 L (30 VALVES)

Arrangement of the basic systems of the 6-cylinder engine of 2,6/2,8 l

1. The vacuum pump 2. A hydraulic pusher 3. A tube отсоса WITH 4. The final valve 5. The piston 6. A starter 7. The oil pump

8. The generator 9. A spark plug 10. A klapannaja atomizer 11. Sdvoenye coils of ignition (3 pieces) 12. A gear belt 13. A poliklinovyj belt 14. The oil filter

PERFORMANCE ORDER

1. A tension roller turn in regular intervals to the right while the tension lever – 2 – will not drown a tension rod so deeply that it is possible to insert 2 mm a core, for example, a drill or spring шплинт. A core insert, and by that the tension roller will be stopped. The prevention If the belt which was in the use necessarily designate an arrow by means of a felt-tip pen or a marker a direction of its movement is again used. Installation of a gear belt in the opposite direction movements can lead to its breakage and heavy damages of the engine. Therefore a belt always establish so that the arrow put to him specified in a direction of rotation of the engine (clockwise if to look in front). 2. Turn away directing roller поликлинового a belt. 3. Remove a casing of a gear belt from a cranked shaft. 4. Remove a gear belt. The prevention The gear belt cannot be bent. 5. The bent belt should be replaced always as at the subsequent operation it can be broken off that will lead to heavy damages of the engine. Position of cogwheels whenever possible do not change.

Installation

PERFORMANCE ORDER

1. Bolts of fastening of cogwheels of camshafts at the left and on the right release approximately on 3 turns, bolts do not turn out. 2. Cogwheels of camshafts at the left and on the right shift from cones by means of a stripper. Stripper captures should be got for a back end face of a nave. The prevention Cogwheels should be shifted from cones so that they on camshafts were mobile, but did not shake. 3. A gear belt impose on both cogwheels of camshafts, then on directing roller and a cogwheel of a cranked shaft and, at last, on a tension roller. 4. Establish clamp AUDI-3243 (for the engine with working volume 2,8 l (30 valves): AUDI-3391).

ENGINES WITH TWO VALVES ON THE CYLINDER (TO 174 L. С)

PERFORMANCE ORDER

1. A bolt of fastening of a tension roller by means of a key with external шестигранником SW 8 tighten so that the roller on the clown could turn easily still by hand. 2. A tension roller by means of a key with external шестигранником SW 8 turn to the right and keep. Thanks to it the gear belt stretches. 3. A bolt of fastening of a tension roller of a gear belt tighten by means of the second key with external шестигранником SW 8. 4. Check up a tension of a gear belt. For this purpose take a gear belt big and index fingers in the middle between a cogwheel of a camshaft and the pump of a cooling liquid and braid. The gear belt should suppose twisting only on 90 degrees. 5. Otherwise a bolt of fastening of a tension roller release also a tension roller accordingly tighten, the demanded tension of a belt will not be reached yet. 6. A cranked shaft of the engine turn by hand on one turn in a direction of rotation and repeat check of a tension of a belt, if necessary a belt tighten. 7. A bolt of fastening of a tension roller tighten the moment of 45 Nanometers.

ENGINES WITH FIVE VALVES ON THE CYLINDER (WITH WORKING VOLUME 2,8 L (30 VALVES), 193 L. С)

PERFORMANCE ORDER

1. A tension roller by means of a key with external шестигранником SW 8 turn to the right so that it was possible to withdraw fixing pin from a tension element. A pin pull out. 2. With the help динамометрического a key with external шестигранником SW 8 tighten a tension roller of a gear belt the moment of 15 Nanometers. A bolt of fastening of a tension roller tighten the moment of 20 Nanometers. 3. Directing roller поликлинового a belt tighten the moment of 45 Nanometers. 4. Cogwheels of camshafts tighten the moment of 70 Nanometers (at the engine with working volume 2,8 l (30 valves) – 55 Nanometers). A clamp of camshafts turn on. 5. A pin of fixing of a cranked shaft turn out. 6. The gauge of the moment of ignition wrap the moment of 10 Nanometers. 7. Establish the bottom casing of a gear belt. 8. Гаситель крутильных fluctuations insert so that the ledge on a cogwheel of a cranked shaft has entered into a groove гасителя крутильных fluctuations. By means of a key of 8 mm with external шестигранником tighten гаситель крутильных fluctuations by the moment of 25 Nanometers. 9. Establish the left and right casings of a gear belt. 10. The tension device поликлинового a belt expose so that the fixing pin has entered into an aperture in the block of cylinders. A bolt with internal шестигранником tighten the moment of 45 Nanometers. 11. Fix casings of a gear belt from both parties. 12. Establish поликлиновый a belt. 13. Establish the bottom casing of a motor compartment. 14. Lower the car.