Lay a new roof panel on the body and determine the cutting points of the body pillars. They cut down the roof panel with a thin sharpened chisel or cut off the roof panel with a grinder, stepping back from the bend of the panel 6-8 mm (by strokes - fig. 174). Carry out the cutting of the panel on the racks, stepping back up from the markings of 10-15 mm. Disconnect the roof panel from the body elements, remove the remaining strips of the panel and clean out the subsidence of the body and the new roof panel. The body elements are straightened at the junctions with the roof panel, the new panel is adjusted in place and fixed with grippers.
Pic. 174. Replacing the roof panel and front fender (dots indicate resistance welding seams): 1 - places of preliminary welding by gas welding: 2 - attachment points of the front wing
The panel is welded by gas welding using brass rods L63 or L62 at points 1. The fit of the roof panel is checked and it is welded by spot welding with a pitch along the front and rear edges of 45 mm, on the sides of 30 mm. Panel connections with racks are soldered with hard solder and the seam is cleaned.
In the absence of a contact welding machine, electric welding in a carbon dioxide environment with Sv.08G1S wire with a diameter of 0.8 mm or gas welding with L63 or L62 brass rods with a diameter of 2-3 mm is allowed.