Can a 77/78 firebird bumper be reapaired? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 02-12-2011, 11:08 AM
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Can a 77/78 firebird bumper be reapaired?

It pushed in a little. Il try to post pics. Can it be pulled back out or does it need to be relaced?

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Old 02-12-2011, 12:15 PM
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These can be repaired if needed..try a heat gun and work the dent out and if it is torn then a plastic welder can do wonders..There are fill materails as well and you may need to use an adhesion promotor before the repaint..

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Old 02-12-2011, 05:22 PM
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Got me a heat gun and started to work the dents out. Theres a nice crease that im having trouble getting out tho. I'll post a pic so someone can give me advice on how to get it out. Thanks for the help.
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Old 02-13-2011, 02:26 PM
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Here's some pictures. As you can see, the drivers side is pushed up a little higher than the passenger side. I think that little crease near the light is causing it. Can't figure out how to straighten it out though.
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Old 02-14-2011, 06:01 PM
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Just trying to bump my question back up to the top. Any ideas on how to fix it?
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Old 02-14-2011, 06:39 PM
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It is likely that you will need to remove the cover and straighten any under-structure that is holding it. There are metal braces and plastic/fiberglass forms under the cover to help support it, it isn't just a rubber cover that holds its own shape. It would be a miracle to expect to get out all the damage without removing the cover to work on the understructure parts.

Also the bumper assembly is on shock absorbers in the ends of the frame horns if I'm not mistaken, they may need to be pulled back out to their original length or replaced.
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Old 02-14-2011, 07:20 PM
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See post number two, above.

A company called SEM makes different epoxies for repairing bumpers. They are mostly cosmetic, not structural. You have to identify the type of plastic your bumper is made out of. SEM makes the different epoxies for the different plastics.

Some plastics can be remelted, and softened by heat, others cannot. You might also have to get the plastic hot, and then hold it in the shape you want it in until it cools again.

This is a picture of some epoxy I used to repair some damage on my Ford Aerostar bumper. The epoxy is really stiff, and hard to get out of the twin tube, so I used a hole saw to cut a round piece of 3/4 plywood, that fit inside a common caulk gun, and then drilled two smaller holes to fit the epoxy tubes.



Your bumper might be more difficult to repair, than replace. You might try to see what is available aftermarket, to replace your bumper. If your car was newer, you would have a better possibility of finding a used bumper at a junkyard, but it cannot hurt to call around, or do some internet research for a junkyard near you.
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Old 02-14-2011, 07:52 PM
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I cant fimd a bumper for under $300 anywhere. Im trying to sell the car and dont want to spend any more money. I fixed a couple spots already by heating it up, forcing it back into shape, and holding it til it cooled. Just having trouble with this last little spot. Its causing the bumper to sit crooked, and the braces, supports, all the jazz is all fine. Maybe i'll just heat that whole side up so it moves freely and i can get it back into shape.
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Old 02-15-2011, 10:53 PM
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just was wondering if you have an update for us. i myself have a Firebird and have the same problem. my dent isnt as bad as yours and i personally dont mind it being there, but i was just wondering if you found a way to fix yours so that i could try the same thing with mine.
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