white90 Posted January 11, 2007 Share Posted January 11, 2007 After repeatedly hitting then straightening (with use of a stout tree) one side of the bumper has a crease in the lower section I think this is weakening the bumper so next week I'm going to sort it. looking for tips/advice(some already given re s****e driving Thanks Les) I was thinking along the lines of a plate over the crease once flattened it was suggested to cut the centre of the crease then flatten the wed up plating over the top any more ideas/pointers/suggestions re fixing the bumper not the driving standards thanks or the mess behind the car Quote Link to comment Share on other sites More sharing options...
Tonk Posted January 12, 2007 Share Posted January 12, 2007 weld some 20mm flat bar inside after flattening, or weld a plate from top to bottom on the rear to spread the load to the top, or both Quote Link to comment Share on other sites More sharing options...
bishbosh Posted January 12, 2007 Share Posted January 12, 2007 Once you have straightened it, weld a piece of flat to the outside edge to form a lip. Something like 25 x 5 flat or similar with the 25mm dimension vertical. This will form a bit of a mud trap but as long as you know it is there you can clean it out carefully. Alternatively, weld a piece of plate from top flange to bottom to box out that part of the bumper. You should crop the lower corner at the closed end to allow drainage or clean meticulously as above. [Edited to say: the second suggesetion is the same as Tonk's... ooops! ] Quote Link to comment Share on other sites More sharing options...
Diff Posted January 12, 2007 Share Posted January 12, 2007 Hi Tony, because it has been bent and straightened a few times, the metal may have stretched, so you may not be able to 'flatten' it unless you can get it glowing with some oxy gear first. You will need a heavy dolly and hammer to 'unstretch' it whilst it is glowing. You may find that hitting it cold will just move the bend or create a different shaped ripple. If you want it to look flat, and it has stretched, and you don't have the facilities to 'unstretch' it, then you can run a grinder cut through the centre, beat it back into shape and weld up the grinder cut. Then reinforce it as suggested by Mark and Bishbosh. Beating it flat 'ish' and then reinforcing as suggested will give it back its strength if you are not worried about a little ripple showing Regards, Diff Quote Link to comment Share on other sites More sharing options...
white90 Posted January 12, 2007 Author Share Posted January 12, 2007 Tonk/Bish any chance of a picture for guidance I have read it 2 or 3 times but a picture would confirm what I'm reading. are you referring to 20mm thick flat bar? Diff cheers I think cutting/welding will be the approach as I have no oxy gear Quote Link to comment Share on other sites More sharing options...
simonr Posted January 13, 2007 Share Posted January 13, 2007 I would bend it as straight as you can. Cutting out the folded bit would be good, but not essential. I think what charles is suggesting is just welding a strip to the lower rear edge of the channel to keep that edge straight. It need only be say a bit of 20 x 6mm bar. I would probably go for closing the rear of the bumper with a bit of plate which will serve the same purpose, but increase the strength more. boxing it in, you could use thin plate - say 1.6mm thick so it would add little to the weight. So long as it is closed, it becomes less of a mud trap. It will certainly help stop it creasing! Si Quote Link to comment Share on other sites More sharing options...
white90 Posted January 13, 2007 Author Share Posted January 13, 2007 Would it be ok to box the rear by placing a plate just inside the top bottom flanges (so it would be easier to weld in) rather than weld a plate edge to edge. or the flat bar approach would you have the 20mm piece vertical and the 6mm piece against the lower flange Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 13, 2007 Share Posted January 13, 2007 You could move it in a little Tony, so that your welds are on inside corners but you should be able to do outside corner welds by now Mo Quote Link to comment Share on other sites More sharing options...
white90 Posted January 13, 2007 Author Share Posted January 13, 2007 Mo without any instruction since you last came down my welding ability is no better the desire is the same though. Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted January 13, 2007 Share Posted January 13, 2007 Tony, This shouldn't be a problem....................I have sent you a pm ............... Ian Quote Link to comment Share on other sites More sharing options...
white90 Posted January 16, 2007 Author Share Posted January 16, 2007 my effort thanks to all who offered advice. Quote Link to comment Share on other sites More sharing options...
Astro_Al Posted January 16, 2007 Share Posted January 16, 2007 thanks to al who offered advice. You're welcome! Man I'm good - I did that without even opening the thread! Al. Quote Link to comment Share on other sites More sharing options...
JST Posted January 16, 2007 Share Posted January 16, 2007 left space for the wing bars then! Quote Link to comment Share on other sites More sharing options...
will_warne Posted January 16, 2007 Share Posted January 16, 2007 Tony, did you weld the 2 plates together along the back face of the bumper aswell (I can't tell with the painted photo)? If not water will get inbetween the 2 plates and they'll warp. BTW, what did you want to do about the dash tray? Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted January 17, 2007 Share Posted January 17, 2007 Yes, that should cure the problem and give the added strength……… looking good. Ian Quote Link to comment Share on other sites More sharing options...
white90 Posted January 17, 2007 Author Share Posted January 17, 2007 Will yes seam welded all the way round. Dash piece have you found it then? Quote Link to comment Share on other sites More sharing options...
Tonk Posted January 17, 2007 Share Posted January 17, 2007 thats how i would've done it but used 20mm flat bar instead, thats how mine is and its never bent, although i might have over engineered it somewhat Quote Link to comment Share on other sites More sharing options...
white90 Posted January 17, 2007 Author Share Posted January 17, 2007 I've used plate the same as the bumper (actually a piece from the bumper I have spare) welding isn't pretty but it won't fall off that's for sure Quote Link to comment Share on other sites More sharing options...
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