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Quick And Easy Patch Panels - Cover Up

Tech - Quick And Easy Patch Panels.

Mike Harrington May 1, 2009

Holes happen, whether by rust, distracted drivers, or even from the factory. Thankfully, for those of us who own Chevrolets, the aftermarket companies are in full swing when it comes to reproduction sheetmetal for most of our models. But that is not always the case; sometimes in order to replace metal it comes down to good, old-fashioned, Yankee ingenuity.

If the particular panel that is being worked on is generally flat or has a gentle curve, fabrication is fairly easy. If it is not, homemade cardstock templates will be the order of the day. In our case, the fenders we are working on are from an '88 IROC Camaro.

In our last issue, we shaved the door handles and patched them. This time we are taking it one step further and filling in the side marker lights.

Ultimately, the car will look completely different when it is repainted in Hugger Orange.

Sucp_0905_09_z Quick_and_easy_patch_panels Metal 8/18

Once the patch piece has been tacked into place, the battle with heat warping the metal begins. The tin on these fenders is only 22-gauge and that is some pretty thin stuff. If too much heat builds up in the surrounding metal, it will warp. The best method I found for stitch welding is taking your time! I tack welded the panel in two places then blasted the welds with compressed air. Only when the metal was cool to the touch did I use the welder again. Weld, blast with air, let cool, repeat.

Sucp_0905_16_z Quick_and_easy_patch_panels Disc_sanders 15/18

When the welds were ground down on the passenger-side fender, I made the mistake of using my electric grinder with an 80-grit flapper disc. Yes, it worked, but the heat build was so intense the panel warped. I spent another hour with the hammer and dolly straightening it back out and it is still not perfect. After all that careful welding and cooling, the grinding undid all my work. Avoid using a flapper disk and grinding wheel, they will build up too much heat for this thin-gauge metal. The electric grinder is better suited to grinding welds on frames and other heavy gauge metal.



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