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Another Classic rear arch repair story...

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Old 29 May 2014, 10:53 PM
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piehole1983
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Default Another Classic rear arch repair story...

So some of you may have seen my thread recently about the common rusty bits that appear on UK Classics. In my case one bad arch, one not so bad arch, one strut tower rotten and some rust around the rear skirt in general.

I'm not sure that my thread will really be up there with some of the high quality repairs/builds that normally reside here but there seems to be a lot of people looking for some photos and info on this subject before they take a grinder to their Classic. This is where I step in.

I decided that the car is fooked anyway, so whats the worst that can happen. If it all goes bad, I'm breaking it and scrapping the shell. If it goes ok, then happy days. I also have to bear in mind that the car is 17 years old and it's a not so desirable UK Classic. Resale will be low but I have no intention of selling any time soon.

How I got to this stage is pretty simple. I had bought the car 1 year ago and was aware of a few bubbles on the rear arch. I wasn't too bothered, thinking it would be an easy fix so I stuck it through MOT and carried on about my business for the last 11 months. The MOT is due in June and I set about getting it prepped for a repair. Off with the bumper only to find a shed load of rust and holes appearing. I kept digging and finding more rust.

I was sick........

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Old 29 May 2014, 10:55 PM
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piehole1983
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That's the passenger side rear arch so far. I'll be starting on this first and working through them all when I get time.
Old 29 May 2014, 11:02 PM
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piehole1983
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So after a bit of flap wheel action I can see whats going on a bit better:

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Ignore the marker, just some lines I marked for possible cuts, which I did....

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Old 29 May 2014, 11:09 PM
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piehole1983
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Previous repairs are very evident, but no metal had ever been replaced. All filler!

Few more photos:

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Old 29 May 2014, 11:16 PM
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piehole1983
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Started making a repair section for the outer skin of the arch from a damaged wing off a Vauxhall Vivaro!

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It has the perfect little step that exists on the car already where the bumper clips to the arch. I just have to modify it to fit in. Had a little play with it tonight for half an hour.

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Old 29 May 2014, 11:19 PM
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lordharding
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This thread will move you up to scoobynet stardom

Up with the "greats "
Silver sport scooby
Joe v3
John mac
And a few others
on the projects section

Subscribed

Along with every classic owner who wants to preserve their classics

Last edited by lordharding; 29 May 2014 at 11:25 PM.
Old 29 May 2014, 11:29 PM
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johnlogie
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I used my front wings to restore my arches (needed new wings due to dents). arches were pretty bad. not sure how long they will last for as it was myself that repaired them(never done anything like it before), only time will tell!!!!
Old 29 May 2014, 11:30 PM
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piehole1983
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Thanks!

At least I'll get to test out my heavily modified MIG welder if nothing else! Hopefully Saturday will bring some more progress and photos. Some more cutting to do on the inside skin, not so easy with a 4" grinder. I'll have to get the Dremel out I reckon.

Anyway, watch this space!
Old 29 May 2014, 11:32 PM
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Originally Posted by johnlogie
I used my front wings to restore my arches (needed new wings due to dents). arches were pretty bad. not sure how long they will last for as it was myself that repaired them(never done anything like it before), only time will tell!!!!
I was gonna use wings too but I already had the Vivaro wing and saw potential in it. If its not going to do the job, I'll get a Subaru wing and use it.

Any photos of your work?
Old 29 May 2014, 11:37 PM
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Mines going under the knife in the autumn as the guy is busy with other projects to then
I have discussed the wing cut out and shape but he prepares to use his old craftsman techniques
I've seen some of his work on classic cars, rolls and old ford RS and happy with it as he feels the metal he uses will be thicker then wing metal but I will be forwarded this thread to him as it develops nearer the time
Old 29 May 2014, 11:40 PM
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Old 29 May 2014, 11:43 PM
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Front wing is the perfect shape. It was unbelievable how well it fitted

Passenger side had quite a bit of damage btw

Last edited by johnlogie; 29 May 2014 at 11:44 PM.
Old 30 May 2014, 12:07 AM
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Jaysus! Yours is as bad as mine! What about the inner skin? Much work done there?
Old 30 May 2014, 12:17 AM
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Originally Posted by piehole1983
Jaysus! Yours is as bad as mine! What about the inner skin? Much work done there?
Cut out all the bad metal and replaced. Stone chipped the inner arch and the boot. Looks mint now it's been painted but expect it to come back. It was a cheap fix, done by myself with no previous experience
Old 30 May 2014, 12:20 AM
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You think that's bad? Want to see pics of my sills? Lol
Old 01 December 2014, 07:37 PM
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Just came across this thread. How did it go?
Old 01 December 2014, 07:49 PM
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I actually forgot I started this lol! Yes, a lot of progress made after initially finding a shït load more rust than I had anticipated. I was going to scrap it! I've stuck by it though and cut out all rust I could find and welded in new sections. Still haven't painted anything as yet. The car is now dry stored until I get it painted up. Passed its MOT without any issues too

At the moment I've cut the the majority of the inner arch out of the passenger side along with the part behind the bumper that can't be easily seen, cut as little as possible from the outer arch skin and repaired the best I can until it's filled and painted. All welds are continuous and sealed over for more protection.

I'll be cleaning all the arches out and painting them over the winter so I can update this more as that happens. I've repaired quite a bit of the "skirt" behind the rear bumper as it has basically detached from the rear chassis legs. It's only held by 2 spot welds on each side from the factory. Very poor effort by Subaru there. They really didn't consider corrosion protection at all.

All in all I reckon I've spent at least 10hrs solid just welding, nothing else. If I'd been paying someone to do it the car would definitely been scrapped.

As yet, the drivers side is holding up without any work but I'll be taking all the preventative measures I can to slow the inevitable rust down as possible.

Last edited by piehole1983; 01 December 2014 at 07:51 PM.
Old 01 December 2014, 09:49 PM
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Davec30
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Think a mig welder is on my list for January sales!! I don't think its anywhere near as bad as yours but you never know until you start cutting.
Old 01 December 2014, 09:59 PM
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piehole1983
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Exactly mate, I was thinking a little patch and away I go. Not the case at all. Once I fired up the grinder things went very bad. Check up inside your rear strut towers for rust/holes too.

Regarding the MIG, don't skimp on it and buy a crap one like I did. I bought mine 10 years ago, used it once, thought it was shîte and never used it again. Last year I found a website dedicated to the modification of them to make them good. I did a lot of work to it and now have a pretty good welder.
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