11.4.3. Repair of a back part of a body ("sedan")

At repair of a back part of a body "sedan" the following works can be performed:

1) replacement of an external wheel arch, including the strengthening element of a wheel arch:

— cut out the damaged wheel arch and the strengthening element of a wheel arch;

— cut out the replacing section;

— cut off an external arch 15 cm higher than a fold;

— grind to naked metal and adjust the interfaced surfaces of a wheel arch;

— apply welding primer;

— fix a wheel arch;

Fig. 11.42. Connection of an external wheel arch with a body

— weld a wheel arch (fig. 11.42);

— previously cut out the replacing section of the strengthening element of a wheel arch;

— to a soshlifuyta a paint and varnish covering, apply welding primer;

Fig. 11.43. Connection of the strengthening element of a wheel arch with a body

— fix the strengthening element of a wheel arch (fig. 11.43);

— weld the strengthening element of a wheel arch;

Fig. 11.44. The recommended line of replacement of knot of the luggage compartment

2) replacement of knot of the luggage compartment (fig. 11.44), including a back longeron:

— to a welding point soshlifuyta up to a cross-piece;

— to a welding point soshlifuyta on wheel arches and internal sidewalls of a body;

— cut off half of the luggage compartment at distance about 20 mm behind a cross-piece;

— cut down a floor a chisel;

— grind to naked metal;

— apply welding primer;

— assign new gender with an overlap on a cross-piece;

— cut off on an overlap both panels together;

Fig. 11.45. Installation and way of connection of the side panel

— you will expose and fix the side panel (fig. 11.45);

— make a fitting room assembly together with the floor panel;

— be convinced that the boundary sizes of these details coincide without tightness;

— take the side panel welding;

— remove the floor panel;

— weld the side panel;

— remove an old longeron;

Fig. 11.46. Installation of a longeron of a luggage carrier with a transitional detail and a way of its connection

— insert a new longeron with a transitional detail (fig. 11.46);

— install the floor panel;

— be convinced that the new longeron rises on the place;

— record it tacks;

— remove the floor panel;

— weld a longeron;

— fix new half of the luggage compartment;

Fig. 11.47. Installation of a trunk floor

— weld it end-to-end (fig. 11.47);

Fig. 11.48. Connection of a trunk floor with body elements

— weld half of the luggage compartment on longerons electrorivets (fig. 11.48).

— weld half of the luggage compartment on the back panel and on the longitudinal strengthening element contact spot welding;

Fig. 11.49. Ways of connection of knot of a back wing with a body

3) replacement of knot of a back wing (fig. 11.49), for what:

— measure the replacing section;

— cut off on tags;

— to a welding point soshlifuyta;

— adjust the interfaced surfaces;

— apply welding primer;

— establish (on a loose back wing) a trench, a cover of a filling mouth, a lock clamp plate;

— adjust to a trunk lid;

— weld;

— cut out the damaged section;

— grind the interfaced surfaces to naked metal;

— previously cut out a back wing (the replacing section);

— install a back wing on the car;

— cut off a hacksaw both panels where the joint has to settle down;

— remove a wing;

— apply welding primer;

— put a back wing;

— adjust, weld a prikhvatochny seam;

— weld continuous seams;

— execute where it is possible, contact spot welding;

— grind a welded seam;

— other body knots and panels are replaced similarly.