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Sammo

Lachssilber E30 M325i

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Must have been in a masochistic mood as finally got around to doing a proactive ‘rust hunt’ in the E30.

I already need to get some professional work done on the sunroof / tray / boot lid later in the year as funds allow but I wanted to go through and find anything else I can clean up and treat myself to nip in bud.

Findings (presumably typical):

  • Bit of surface rust on front jacking points
  • Small patch of surface rust on firewall below my well and truly buggered ‘Elephant drain’ but came off easily with a wire brush.
  • Reasonable amount of surface rust on boot seal ‘seam’ including a small area that I managed to turn into a couple of little holes.

Will get this all cleaned up well, treated and order a new drain and boot seal.

Not sure on approach with the little holes on the boot seal area (about a 1/3rd pea size) - would bog work here just to plug the hole, or would welding be best?

8D2E3526-0B4E-4C76-93A0-520FD5A4E0B2.jpeg

89AFAD97-0F17-429F-9139-A179A804A291.jpeg

Edited by Sammo
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Can't wait to see this beast! come see me soon haha

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On 1/13/2022 at 11:14 AM, Sammo said:

Not sure on approach with the little holes on the boot seal area (about a 1/3rd pea size) - would bog work here just to plug the hole, or would welding be best?

8D2E3526-0B4E-4C76-93A0-520FD5A4E0B2.jpeg

 

Looking for rust in an E30 is usually only bad news, but by doing this you can find it, fix it and stop it becoming terminal. Much better than ignoring it / hoping it’s not there.

For that boot seal area, I would suggest the best way is to cut back to bare metal and weld in a replacement section (possibly from a wrecked E30 - worst case should be a simple fab job as it’s 90 degree bends and straightish). I would suggest that with bog it will only keep bubbling up over time - even if you treat it with rust cure.

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@E30 325i Rag-Top Exactly! better than burying ones head in the sand...

I'm pretty comfortable with the extent of my findings (sunroof part excepted which I'm aware will cost $$$) - for boot I think I'll clean properly and treat it and plug the holes for now then get it welded and a new seal later this year when I'm getting the other 'serious' work done (sunroof tray / boot lid).

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If you are going to "plug the holes" for now, make sure you strip it back to bare metal as far as you can, treat the rust, paint it with something heavy in Zinc, and then fill the holes. That will at least slow the cancer in the mean time.

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