Hood Dent.

C

cstrom72

I'm having a hell of a time with this dent on the hood of my 68 Mustang. It's right on the edge of the under bracing so I can't get to part of it. I've tried hammer off and hammer on dolly. Just can't seem to get it. Any tips? I think it's getting work hardened...
 
Dent is a stretch, you'll need to shrink it. Lay off the on-dolly. Likely a torch shrink or dent puller with heating tip, dinging spoon under the bracing to persuade it upwards..
 
Areas like that is where the shrinking disc comes in handy, looking at the pic I can see highs and lows. Run the disc over it and the highs will shrink down, then work the low areas up and hit it with the disc again, With the stretch there you'll never be able to set the height where it needs to be-it will always be high or low. You can spread the stretch out and it will mellow but again it will still be either high or low. The only way to correct it is to shrink the stretch out of it. A stud gun or a torch could be used but it will take more skill than a disc on a panel like a hood-JMO. What the average collision tech would do is to hammer it all low and spread some mud... Cave-n-Pave
 
Another vote for the shrinking disc. Like Bob said, if you can get to the back at all, just enough to make those lows high, the disc will take care of them. I use my shrinking disc on the majority of the dents I repair. Most dents cause the metal to stretch. Especially if you are working with a low crown panel like that hood, the only way to fix it is to shrink the stretch, or you will end up with an oil can.
 
Great info-Thanks! I have never used a shrinking disc before but did some research on it. Cant wait to try it. Going to see if I can hunt one down here in town, but may have to order it. Sorry for the delayed reply I couldn't remember my password to save my life! I also watched a few vids on shrinking with a torch and wet rag or spray bottle of water. Might give that a go in the meantime!
 
This was about a 4 inch diameter bondo repair on the roof of a 65 Fairlane. Used a Snap-on dent puller in an attempt to limit the filler.



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A little clean up afterwards with the hammer/dolly, and then a bit of sanding brings it right around......




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So I walked away from the hood and did some other things for a while. Getting back after it now I used my stud welding gun and did a few spots and that really seemed to help and I just spent about 20 min using a shrinking disc I ordered off of Ebay for 25 bucks and its really coming along nicely! I need to tap up a few lows from the bottom and hit it with the Shrinking disc a few more times. I still have an "oil canning" issue right in the center of the hood. I am not sure what to do at this point. There are a few spots where the factory has glued the inner support to the outer shell and the glue has separated. I think that may be causing some of the oil canning. In the first pic if I lightly press down in the yellow circled area it pops and goes down but springs back up. 2nd pic is of the glue that holds the two pieces tight together. All the glue has separated and is missing in some spots (probably from the sandblasting). 3rd pic us the area where the oil canning is from the bottom. How do I "tighten" this up to get rid of the oil canning the right way? Thanks guys
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Oh and thanks for the pics MP&C that looks like a better system than the big heavy stud welding gun I use haha-
 
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