1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Best way to go about fixing this SA front bumper.

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Old 09-07-16, 12:26 AM
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Best way to go about fixing this SA front bumper.

I have tried knocking down the high spots/area with a body hammer but the metal is not moving ...










Old 09-07-16, 05:44 AM
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Have you tried a hammer and a metal dolly? That should get it close and then you'll be able to fill and sand the imperfections.
Old 09-07-16, 06:37 AM
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Try heating it up with a torch to soften the metal and then hammer it. That is thick metal, too strong to hammer and Dolly it only
Old 09-07-16, 09:48 AM
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Originally Posted by erick31876
Try heating it up with a torch to soften the metal and then hammer it. That is thick metal, too strong to hammer and Dolly it only
Yep, I was going to suggest heat n beat as well.
Old 09-07-16, 05:40 PM
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Originally Posted by mazdaverx713b
Have you tried a hammer and a metal dolly? That should get it close and then you'll be able to fill and sand the imperfections.
I've tried using a dolly to, but the metal is too "springy" when I hammer it I got the bar clamped down but metal doesn't want to go back to shape.

What's the best way to hammer and dolly it, place dolly under where the bars straight and start from the edges? Or start from the middle and work the dint out to the straight metal?
Old 09-07-16, 07:37 PM
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Originally Posted by erick31876
Try heating it up with a torch to soften the metal and then hammer it. That is thick metal, too strong to hammer and Dolly it only
How hot do I have to get it? I don't want to stretch it with too much heat I'll be using one of those propane torches with a brass head would that be alright?
whats the best method to knock it down once it's heated?
Old 09-07-16, 07:51 PM
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or could I put some paint back on and block sand till the high spots come up, than heat them and knock them down before I start knocking the bend out?
Old 09-07-16, 08:13 PM
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If it's springy like you say ,then it's already stretched,it looks like it from the one picture. You could grab the highest spot with pliers and bend it down slightly to where it's a little low and use body filler.if it is stretched that bad and you start beating on it ,it's just going to work it's way across the bumper
Old 09-07-16, 09:10 PM
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Originally Posted by erick31876
If it's springy like you say ,then it's already stretched,it looks like it from the one picture. You could grab the highest spot with pliers and bend it down slightly to where it's a little low and use body filler.if it is stretched that bad and you start beating on it ,it's just going to work it's way across the bumper
Seems to be also springy because there's no reinforcement where the back of the bumper is, hammering towards the front feels and sounds solid but when you move to the back that's when it's springy and doesn't seem to be moving.
So start where it's highest and work outwards?

I was messing about with one of my clamps yesterday trying to pry it back to shape and it looked better than what it is.
Could I heat it up and slowly pry it back in one piece or will I need real long pliers?
Old 09-08-16, 02:25 PM
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It's hard to say without being there having it in front of me,I would heat it up,and get 2 pairs of pliers,put one one it where the highest spot is ,and put the other pair nearthe edge of where it bends up,and use that one to hold it while you use the other one to try and bend it back.using the one on the lowest spot to hold it from bending down too much and traveling along the bumper
Old 09-08-16, 04:53 PM
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I might give it a try with a bit of wood on the underside so it moves in one piece if that makes sense, otherwise the pliers might make it worse as it only bends a smaller amount of the metal.
Hopefully I don't make it worse, as a second hand SA front bar is hard to come by here in Melbourne.
Old 09-08-16, 08:58 PM
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You could always heat it up, put a 2x4 on the top you heat and then another on the very bottom of the bumper. Then use a big C clamp with the 2x4's between and centered on the bulge and clamp away. You'll need to be fast.
Old 09-08-16, 11:25 PM
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Originally Posted by KansasCityREPU
You could always heat it up, put a 2x4 on the top you heat and then another on the very bottom of the bumper. Then use a big C clamp with the 2x4's between and centered on the bulge and clamp away. You'll need to be fast.
Thanks for the info.

The F clamp is the biggest one I have it should do the job.
I'll heat it up a bit, place the 2x4s in place than clamp it shut and pull it straight and wait for it to cool down a bit hopefully that should fix it without making it worse.
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