quote:Originally posted by PanteraDoug:
How do you rust proof inside of the channels that you had to make and weld into place? Shouldn't those have been pre-coated with something? Maybe galvanized?
Most of the pre-made fitted parts that were plug welded were first internally coated. When we do a full body reconstruction car, I have them E-coated when possible. Besides these option, I've made several different internal spray tips on flex hoses that spray 360 degrees. Also all of the seams are sealed from the outside before undercoating, painting, or texturing. If you looked at the wheel-well leg rebuild shots, you can see the pre-coated internal areas and box sections are removed, the car is positioned up-side-down to spray inside the opened cavities if the access is large enough. I have used galvanized in the past but the zinc make the welds difficult unless your running very precise spot-welding equipment. Hope this helps enplane the protection questions. I do not have pictures of the process but next time we internally seal, I'll get some shots to show everyone. Thanks for the questions---they help with getting better info for all to utilize if a similar situation come up on other cars under restoration.