Tell Me If I'm Doing It Right ?

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Hi GuysI'm new to mig welding but I'm coming along so far.At the present time I'm restoring my '66 Ford Mustang Convert.Replacing floor pans, toe boards, rear seat pans.What is the proper proceedure ? And please correct me if I'm wrong about the following.Subject: OVER LAPPED SHEETMETAL1. Cut and install into location (front floor pan)2. Spray: Weld Thru Primer.3. Tack weld floor pan.4. Finish welding floor pan.5. Cover welds with: Seam Sealer.DONE.Would you guys do it that way? Please suggest better ways of doing it if there is one please.Thanks GuysGOD BLESS SCHOONER
Reply:I wouldn't weld through primer.  Clean metal for good welds.Sure, overlap and seal.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:First time restoration and for personal enjoyment lap welds will do. For show cars or to sell for big bucks exact fitment consistent 1/32-1/16 gaps and butt welds, a bunch of short stitch welds, and grind with a flap wheel takes the cake. Practice this on junk first.
Reply:After tacking, A LOT of short welds. 1" max. Jump around a LOT. Do NOT try to fill a separating joint with weld. Stop, hammer/dolly back to touching, tack. I saw a video last year replacing the pans and trunk in an oldie. Step by step. They drilled holes in places and plug welded. But I don't remember why. If I remember, it was done by Hot Rod Magazine, not sure. Awesome information, find one if you can.9-11-2001......We Will Never ForgetRetired desk jockey. Hobby weldor with a little training. Craftsman O/A---Flat, Vert, Ovhd, Horz. Miller Syncrowave 250
Reply:Originally Posted by David RI wouldn't weld through primer.  Clean metal for good welds.Sure, overlap and seal.David