Im fuct... it took my 61 lincoln to the sand blaster to blast the trunk floor and cabin floor to expose all the rust holes and while they did that they thought they would do me a favor and blast the inside of the qtr panels exposed in the trunk and it put a wave into them. My understanding is that the compressive forces of the sand actually stretched the side of the metal that the sand was hitting and not the other side?? Is this right and how do i fix? i dont want filler allll up on my **** like that.....
I always thought it was heat? but what do I know. hitting metal seems like it would shrink.. but I'm just guessing. want to make it a 2 door? I got a 67 lincoln 2 door I may be parting out.
Hey, Sometimes a sandblaster can do more damage than good! looks like this is one of those times. The use of a very low crowned dolly and a ******* will correct much of this damage. You may well have to put some shrinks, either with a torch , hammer and dolly or a shrinking disc, into the high areas of the repair to return the panel to normal conture (straight). Go very carefuly with the shrinking process, as this era of Lincoln has very little crown in any of its' panels, and thus is really easy to over stretch those panels causing an even bigger problem!
Here is a link to the shrinking disk on ebay. There isn't an easier way to shrink panels. You can do it with a torch, but this is faster. Here is some more information on using the shrinking disk. Even if you don't use this information this time, it is worth tucking it away in the grey cells for next time. http://www.metalmeet.com/forum/showthread.php?t=4121&highlight=shrinking+disk Bob http://stores.ebay.com/Pro-Shaper-Tools-an
Sorry gents, i was gone for a while.. ill give the shrinking disk a try but part of the problem is tucked up above the wheel well inbetween it and the qtr im not sure the disk and grinder will fit up in there.... and correct me if im wrong but i have to shrink from the blasted side right??? if not im golden cause i can do it from the other side but not sure? should i try the flame method?? what about just using a TIG machine with no filler to just arc small circular spots going from center-out in a clockwise motion. or would a torch be better?? thanks in advace for the advice...
No, you don't have to shrink from the side that was blasted. I have never used a TIG to shrink....it might work but a torch or shrinking disc is very controllable. When shrinking with a torch it's best to do small shrinks. I would start out heating the red area no larger than 1/4". Watch carefully to what happens and how the metal moves once it cools. You don't have to use a circular motion for small shrinks, just slowly move the torch toward the panel until the torch almost touches, then you either need to hammer and dolly, quench with water or have an air blower and quickly cool it. I agree with pimpin paint....go very slow on a low crown panel.
Hey, The first rule of shrinking is to make damn sure that the metal you are trying to shrink is actually stretched, and not just misplaced! I can't tell because I haven't seen the damage to the panel, but I would start by bumping/roughing the damage into normal conture, with a hammer, dolly and or s****, until I was sure that the metal was actually stretched/high. If you attempt to shrink an area that isn't really stretched (false stretch), you'll run the risk of creating even more damage to the panel. This happens because your ask- ing metal, that is of normal thickness to travel into an area of the panel that is still of normal thickness, just misplaced i.e. a false stretch. A true stretch is an area of the panel that has become thinner than the surounding metal, the normal thickness of the metal surounding the stretch won't allow the metal to travel, and the metal thus pops out, or in your case in. Rough the damage out first ,than and only than, shrink as necessary. You may want to look into one of those stud welding guns, sold by body shop suppliers to use for those areas, deep up into those quarters where you can't get behind to bump out the damage. Most of these guns also have a shrinking tip. good luck- S****ey Devils C.C.
When bumping this panel back out do i start in the center and then work my way around the perimiter of the hign / low spot?? this is the scenario.... on the rear qtr there are two low spots that seem like they are drawn in toward the trunk where the sand blasted them i can place my palm on them from the inside and push them smooth but they are drawn back to their low state.... ill try to take pics and post but it is such a hard thing to see since the panel is fairly flat to start off with..
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