For stuff like that I'll sandwich with wood blocks then clamp in a bench vise good and tight. Let it sit overnight. Pressure and time will ease the bend back with less damage than beating it. If it's still out of true, it's small, and can be beat out with a wood block for a dolly and a wood or plastic faced hammer. The wood/plastic faced hammer doesn't leave the impact marks a steel hammer does, and if the head is fairly small, you can concentrate the blow better where needed.
The Front face on my FISHER TA-600 was bent up in the corner. Thin brass type front panel. I took some 1/2 round and shaped it to the edge of the faceplate(inner and outer). Then sandwiched the bent corner one side at a time in the vise overnight. 90% of the bend was gone from overnight. Finished it out with the backside block and a plastic headed mallet, very carefully. You can see it if you are closer than a foot away, casually looking. Any further you'd have to know it was bent to notice it.
I had a dent like that(on the5590 face) on my S-10 on the Right QTR Panel behind the wheel. It's got compound curves as it's actually an ISUZU Bed (this is a quad cab S-10). Used a Hair Dryer and a 13" car inner tube to push it back out. Heat up the dented area with the hair dryer and placed the inner tube between the outer skin and the bed. When the skin is hot, inflate the tube enough to push on the skin. Remove heat and let cool down naturally. When cool deflate innertube and remove. It's close enough for the casual eye. Had to replace the Wheel well flare as it cracked and was hanging by 1 screw. No Bondo and the paint is intact.
The Front face on my FISHER TA-600 was bent up in the corner. Thin brass type front panel. I took some 1/2 round and shaped it to the edge of the faceplate(inner and outer). Then sandwiched the bent corner one side at a time in the vise overnight. 90% of the bend was gone from overnight. Finished it out with the backside block and a plastic headed mallet, very carefully. You can see it if you are closer than a foot away, casually looking. Any further you'd have to know it was bent to notice it.
I had a dent like that(on the5590 face) on my S-10 on the Right QTR Panel behind the wheel. It's got compound curves as it's actually an ISUZU Bed (this is a quad cab S-10). Used a Hair Dryer and a 13" car inner tube to push it back out. Heat up the dented area with the hair dryer and placed the inner tube between the outer skin and the bed. When the skin is hot, inflate the tube enough to push on the skin. Remove heat and let cool down naturally. When cool deflate innertube and remove. It's close enough for the casual eye. Had to replace the Wheel well flare as it cracked and was hanging by 1 screw. No Bondo and the paint is intact.
