Mazda 626

1991-1998 of release

Repair and operation of the car


Mazda 626

+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Heating and ventilation
- 5. Fuel system
   + 5.1. Nikki 30/34 carburetor
   + 5.2. Power supply system (l engines 1,6 and 1,8)
   - 5.3. Power supply system (l engines 2,0 and 2,5)
      5.3.1. Introduction
      5.3.2. Technical characteristics
      5.3.3. Dumping of pressure in fuel system
      5.3.4. Fuel pump and fuel pressure
      5.3.5. Fuel tubes and connections of tubes
      5.3.6. Fuel level measuring instrument sensor
      5.3.7. Fuel tank
      5.3.8. Casing of the air filter
      5.3.9. Accelerator rope
      5.3.10. Electronic system of injection of fuel
      5.3.11. Casing of a butterfly valve
      5.3.12. Fuel pressure regulator
      5.3.13. Fuel highway and injectors
+ 6. Exhaust system
+ 7. Transmissions
+ 8. Coupling and half shafts
+ 9. Brake system
+ 10. Running gear
+ 11. Body
+ 12. Electric equipment
+ 13. Electrical circuitries
+ 14. Useful tips


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5.3.5. Fuel tubes and connections of tubes
GENERAL INFORMATION

Before works, surely lower pressure in fuel system.

Tubes of giving and return of fuel lie from the fuel tank in office of the engine and fasten clips to the lower part of a body.

Steel tubes

For replacement of tubes of fuel system use only steel tubes.

If you weaken connections of tubes, follow the following rules:

1. Try not to bend and not to peredavit tubes.

2. Replace sealing rings

Flexible hoses

Flexible hoses should not be close to elements of final system.

Removal and installation

Installation of a spring clip

 1. Fuel tube

2. 1–2 mm

3. Spring clip

4. Hose

5. 2–6 mm

PERFORMANCE ORDER
1. Lower pressure in system.
2. Remove clips, the fixing tubes to a body.
3. In those places where rubber hoses connect to metal tubes, spring clips (shooter) are usually used. To remove such clip, it needs to be squeezed flat-nose pliers and to shift up. Installation is carried out similarly.
4. Sometimes in connections quick disconnect clips are used (1 – a clip; 2 – pads).

Repair

All damaged tubes and hoses need to be replaced similar.