Audi 80/90/Coupe

Since 1986-1991 of release

Repair and car operation

2.3.1.1. The general description

THE GENERAL DATA

The carburettor 2 IT with working components

1. Safety locks 2. A gas rope 3. A bolt, 10 Н.м. 4. The carburettor 2 IT 5. A bolt, 13 Н.м. 6. A krepjashchaja lining under the carburettor 7. The temperature gauge, 20 Н.м. 8. The vacuum union for the hydraulic booster of brakes 9. The pipeline for a cooling liquid 10. A collector lining 11. A lining 12. A bolt, 25 Н.м.

13. A soaking up collector 14. A bolt, 20 Н.м. 15. The O-shaped ring 16. A heater of a bringing collector 17. A bolt, 10 Н.м. 18. The equipment for management of the carburettor 19. A connecting plug 20. A plug for connection of a probe of Ljambda 21. A probe of Ljambda, 50 Н.м.

The top part of the carburettor 2 IT

1. A ventilating tube поплавковой Chambers 2. A ventilating strainer of the muffler Flame (поплавковой chambers) 3. An enrichment tube at full loading 4. A bolt, 5 Н.м. 5. Заслонка start-up 6. A carburettor cover 7. A needle 8. The lining, is subject to obligatory replacement 9. A preliminary spray, 1 chamber 10. A preliminary spray, 2 chamber

11. A safety wedge 12. A fuel jet of idling 13. The main jet, 1 chamber 14. The main jet, 2 chamber 15. A stopper 16. An arm 17. A regulator of installation of a diaphragm 18. A fixing ring 19. The needle valve of a float 20. A float axis 21. A float 22. A float lining

The bottom part of the carburettor 2 IT

1. A stopper заглушки 2. The O-shaped ring 3. The filter 4. A regulator throttle заслонки 5. The ventilating valve 6. The valve of tap of air 7. The holder of a regulator throttle заслонки a gas rope 8. The return valve 9. A valve plate 10. A directing element 11. A valve spring

12. The bottom part of the carburettor 13. A heater of the valve of average loading 14. The persistent screw throttle заслонки, the chamber 1 15. The screw of adjustment WITH 16. A vacuum regulator of ignition, The chamber 2 17. The lever of blocking throttle заслонки, the chamber 2 18. The connecting plug 19. A potentiometer throttle заслонки

The carburettor 2 IT in the disassembled condition

Specifications

Type – 2, 1.6 litres applied in engines with designation PР

	The chamber 1П	The chamber 2
Diameter диффузора	22	26
The main jet	Х 105	Х 110
Jet air	Х 110	Х 105
Fuel jet of idling	Х 45
The channel of enrichment of a mix at full loading	0.4 mm
The raised speed of idling of the cold engine	1400 rpm
Speed of rotation of idling	750 rpm
The maintenance oxide carbon	0.6 %

The carburettor 2 is the carburettor of the overturned type, two-step with electronic adjustment. This carburettor has no traditional auxiliary systems of the main fuel system, for example, the equipment of work of start-up or the accelerating pump. Functions of these systems carry out two regulators: a position regulator заслонки and a regulator of installation of a throttle. Regulators receive electric impulses from a microprocessor control system which is placed behind the hiding place case.

The probe лямбда is in the forward muffler of system of an exhaust. It carries out maintenance gauging oxide carbon in exhaust gases and sends a corresponding signal (pressure) to a control system. Thanks to it the management equipment changes a parity of fuel and air which is soaked up in the carburettor, and thus оптимализирует burning conditions.