I got a crack as can be seen around this part of the window, and a lesser crack mid panel near the door handle
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| Back door fatigue https://auszookers.com/forum/viewtopic.php?f=5&t=17592 |
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| Author: | Che [ Sat Dec 18, 2010 1:25 am ] |
| Post subject: | Back door fatigue |
Ha ha, with a title like this, this topic could end up anywhere. Anyway - I got a 90 Sierra hardtop and the back door/tailgate (whatever it's called) has a few hairline cracks in the panel that keep opening up. First efforts I used sikaflex and painted over, but three months later the cracks have opened up again and ruining my lovely roller paint job. I'm not carrying my spare wheel, and panel is hung correctly. Just wondering how other people have solved this problem (if it's happened to them). Replacing the panel is the easiest option, but I reckon might be an effort to track a decent back door down |
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| Author: | ajsr [ Sat Dec 18, 2010 1:36 am ] |
| Post subject: | Re: Back door fatigue |
weld up the cracks and reinforce if possible. sika is not any good for shit like that as its flexable. sika is for sticking in windscreens , body moulds and commodore firewalls etc not for fixing cracks in body panels. |
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| Author: | mnemonix [ Sat Dec 18, 2010 5:30 am ] |
| Post subject: | Re: Back door fatigue |
The name of this topic had my mind wandering to all sorts of nasty places... |
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| Author: | shakes [ Sat Dec 18, 2010 7:06 am ] |
| Post subject: | Re: Back door fatigue |
mnemonix wrote: The name of this topic had my mind wandering to all sorts of nasty places...
rofl Where are the cracks appearing? Are you sure it's the steel and it's not previous body work/bog cracking? if thats the case then you'll need to do some more homework on sanding it back and reapplying. |
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| Author: | shep [ Sat Dec 18, 2010 7:29 am ] |
| Post subject: | Re: Back door fatigue |
post a photo. |
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| Author: | ajsr [ Sat Dec 18, 2010 7:34 am ] |
| Post subject: | Re: Back door fatigue |
shep wrote: post a photo.
you sick fuck wanting a photo of his back door |
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| Author: | Che [ Sat Dec 18, 2010 8:14 am ] |
| Post subject: | Re: Back door fatigue |
I'm a bit shy, maybe once I get to know you a little better |
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| Author: | shep [ Sat Dec 18, 2010 8:22 am ] |
| Post subject: | Re: Back door fatigue |
i just want to see a crack on a car that you thought you could fix with sikaflex. |
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| Author: | Che [ Sat Dec 18, 2010 8:23 am ] |
| Post subject: | Re: Back door fatigue |
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I got a crack as can be seen around this part of the window, and a lesser crack mid panel near the door handle |
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| Author: | Fatzook [ Sat Dec 18, 2010 9:17 am ] |
| Post subject: | Re: Back door fatigue |
che_guitarra wrote: I got a crack as can be seen around this part of the window, and a lesser crack mid panel near the door handle That is not a common place for a crack. Usually they bust out around the hinges. |
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| Author: | bagnkat [ Sat Dec 18, 2010 10:22 am ] |
| Post subject: | Re: Back door fatigue |
Is the crack definitely in the metal? Could it be the edge of a bog repair delaminating? |
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| Author: | Che [ Sat Dec 18, 2010 10:37 am ] |
| Post subject: | Re: Back door fatigue |
No bog, no rust, had it back to bare metal a few months back to investigate what was going on, panel looks OK from the inside too. I sikaflexed the internal side to seal it a bit better, but no love - split seems to be getting longer. |
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| Author: | Fatzook [ Sat Dec 18, 2010 10:41 am ] |
| Post subject: | Re: Back door fatigue |
Well sierras are made from old coke can, so I guess its time for a new back door 
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| Author: | Ben_Sierra [ Sat Dec 18, 2010 10:42 am ] |
| Post subject: | Re: Back door fatigue |
You sure its not just your paint job that's cracking? |
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| Author: | Che [ Sat Dec 18, 2010 10:53 am ] |
| Post subject: | Re: Back door fatigue |
Wish it was just the paint. Crack was there back when it was white |
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| Author: | shakes [ Sat Dec 18, 2010 9:01 pm ] |
| Post subject: | Re: Back door fatigue |
if your are confident it's the metal find a new back door and paint that. if you wanna keep yours drill the ends of the cracks and get someone to weld them up |
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| Author: | ajsr [ Sat Dec 18, 2010 9:06 pm ] |
| Post subject: | Re: Back door fatigue |
thats a very strange spot for a door to crack??? Its fucked find a new one at some stage.If you weld it it will want ot warp and all kinds of bad shit |
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| Author: | Che [ Sat Dec 18, 2010 9:34 pm ] |
| Post subject: | Re: Back door fatigue |
Well, anyone got any leads? I'm guessing this might be a hard panel to track down |
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