How To Spot Weld Floor Pans

Your car s original floor pans were spot welded in because it was the most cost effective cheapest way to do thousands of vehicles.

How to spot weld floor pans.

Then the new one is laid so the location of the braces and edges can be marked with a sharpie. Removing the spot weld ribbon is the most time consuming step of the process. The common repair method is to trim the old and new create a stepped flange around the perimeter of the replacement panel and install it with a lap weld because butt welding is difficult. Craig hopkins teaches you how to create a plug weld while installing a floorpan.

You will need to make sure the top pan is dropped all the way down tight on the base metal of the car. My names matt urch and i own and. Back in the shop kevin fits the car to the floorpans using the angle grinder cut off wheel and a big freakin hammer. When the replacement panels have a spot weld flange i punch 1 4 holes in the panel and plug weld the panels if i ve got more flange i ll use 3 8 holes.

Use a grinder cutting wheel or plasma system to carefully work through only the. The next step is drilling out the spot welds on the braces and marking and cutting the old floor out. Butt weld vs spot weld. Rather than duplicate the factory spot welds many restorers prefer to run a complete bead around the new panel.

Find every spot weld and mark it. If you re spot welding pre drill the holes in the new panel. Then use urethane seam sealer to seam up the weld area front and back after it has been epoxy primed. Fabrication of a friends car in calgary.