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A Quick Arch Question

Posted: Tue Oct 16, 2007 1:55 pm
by E30Mike
Can anyone tell me please whether the join between the inner arch and the outer is welded or just sealed with BMW's seam sealer?

Many thanks :D :D

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 1:57 pm
by maxfield
Front or rear.

Fronts are just bolted on I believe.

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 2:07 pm
by kam-325i
the rears are spot welded.

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 3:01 pm
by E30Mike
Sorry should have specified, its the rear.

Annoying because the joining edge of the inner has gone nearly all the way round but the outer is fine bar a few scabs on the lip at the back edge so don't need replacing/spraying.

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 3:51 pm
by abelai
I would probably use panel adhesive on the lip to the inner arch very strong and it will seal it at the same time.

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 5:43 pm
by E30Mike
Thanks for that info

:D :D :D

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 7:53 pm
by JMRe30
can anybody explain exactly how the panels join together? are they welded at the very edge?

section:

Image

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 7:58 pm
by kam-325i
The inner and outer are spotwelded together along the 90° return at the edge.....

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 8:08 pm
by JMRe30
so like this right?
Image

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 8:39 pm
by E30Mike
So if it was spot welded there it shouldn't damage the paint on the outside of the outer arch should it?

Re: A Quick Arch Question

Posted: Tue Oct 16, 2007 11:44 pm
by HairyScreech
no only on that lip on the inside of the arch. a little bit of touching up on that lip shouldnt be that visable unless your under the car.

Re: A Quick Arch Question

Posted: Wed Oct 17, 2007 11:04 am
by E30Mike
Thats good to hear, as it will cut the costs considerable.

Cheers

Mike

:D :D