If a leak is detected along the joint line of the upper and lower parts of the tank, these areas can be soldered (it is recommended to do this in specialized workshops). To do this, pour out the remaining gasoline, thoroughly rinse and dry the tank. Then seal the leak with soft solder.
Attention! You can only solder a thoroughly washed and dried tank that does not contain gasoline vapors, otherwise the vapors may ignite during soldering.
Attention! To wash the fuel tank, use detergents "Lobomid", MS or ML. To remove the detergent residue, rinse and steam the tank with a stream of hot water. Dry the tank thoroughly.
It is more convenient to remove an empty tank while working on a lift, overpass or inspection pit.
You will need: 10 and 13 mm wrenches, flat-head and Phillips-head screwdrivers.
1. Reduce the pressure in the fuel system (see "Loss of fuel pressure in the engine fuel system").
2. Disconnect the wire from the negative terminal of the battery.
3. Disconnect the fuel lines from the fuel pump (see "Removing and installing the fuel pump").
4. Place the vehicle on a lift or inspection pit.
5. Loosen the air bleed hose clamp…
6. …and disconnect it from the filler pipe air bleed tube.
7. Squeeze the quick release fitting clamps…
8. …and remove the fuel drain tube from the separator.
9. Loosen the clamp securing the filler pipe connecting hose…
10. …and disconnect the hose from the fuel tank pipe.
11. Remove the two bolts securing the fuel tank clamps…
12. …move the clamps forward…
13. …and remove the tank from the car.
14. If you replace the fuel tank, transfer the parts and components from the old tank to the new tank. By loosening the clamp that secures the air bleed hose..
15. …remove the hose from the fuel tank fitting…
16. …and remove the fuel pump from the tank (see "Removing and installing the fuel pump").
Filling pipe the fuel tank can be removed from the vehicle if necessary as follows.
17. Remove the plug from the filler neck (see "Filling up a car with gasoline").
18. Unscrew the nuts securing the lower…
19. …and the upper bracket for fastening the filler pipe.
20. Remove the filler pipe from the vehicle by pulling its upper end out of the filler neck trim.
Note: The wheel has been removed for clarity.
21. Bend back the edge of the rubber lining of the filler neck…
22. …and remove the trim.
Note: Check the condition of the filler neck lining and if cracks, tears or loss of elasticity are detected, replace it with a new one.
23. Loosen the clamp..
24. …and remove the hose from the filler neck.
For more details, see the page (LADAMAN.ru)
25. Check the integrity of the welds…
26. …and the condition of the filler pipe safety curtain. If necessary, replace the pipe with a new one.
27. Install the fuel tank and all removed parts in the reverse order of removal.
Note: Before installing the fuel tank, inspect the fuel tank mounting clamps. Replace rusty or cracked clamps at the weld seam with new ones. Please note: the clamps are different (left 1 and right 2).