Thin chisel cut off the floor of the trunk (pic. 183) and fuel tank floor (spare wheel) from the side members of the trunk and the inner arches of the rear wheels (pic. 184). The felling sites are shown by dotted lines in the figures, and by arrows in the fragments. Cutters remove the remaining elements and grind their deformed edges with a grinder.
The trunk spars are chopped off from the inner arches of the rear wheels and cross members, the remaining metal is removed and the seats are cleaned. Install the new trunk spars in place and grab them by gas welding with solder L62, L68 in the places indicated in the figure.
A central amplifier, a holder with an asbestos gasket placed under it, and mounting brackets for the main muffler are welded to the bottom of the trunk floor. Electric welding is carried out in a carbon dioxide environment with dots every 40-50 mm with wire Sv-08G1S or Sv-08G2S with a diameter of 0.8 mm. Gas welding with brass rods L62, L68 is allowed.
The trunk floor is installed in place and welded at the corners at the indicated points by gas welding with L62, L68 solders. An amplifier is installed to the back panel and welded by electric welding in a carbon dioxide environment with dots every 40 mm. Install the back panel in place and grab it to the body elements by gas welding (see "Back panel replacement").
Installing the fuel tank floor (spare wheel) in place and tack welding at the points indicated in Fig. 184.
Preliminary control of all stuck parts is carried out with hanging the rear fenders and the trunk lid. Eliminate assembly flaws. The parts are finally welded by electric welding in a carbon dioxide environment with wire Sv-08G1S or Sv-08G2S with an intermittent seam in sections of 10 mm every 30 mm. For electric welding, semi-automatic types are used "Ray" or PDG-305. The strength of the electric current is 50-90 A.
Gas welding with solder L62 or L68 is allowed with dots through 30-40 mm.