Titanium Grey S4 Avant

[hunker7]

You'll be surprised how bad cars rust in UK. My Latvian A100 wasn't as rusty as my UK S4 is under the car.

[mdz]

Might be some sort of vibration dampening or something like that but in reality wet and dirt collects there, never dries and wing rusts from inside out. Don't know about UK climate, but here it's pretty hard to find decent C4 wings because of this - most of them are rusted at the top.

[hunker7]

Just that you don't want it too rich on lpg

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I see. Lpg runs lambda 0.9

Get rid of those foam pieces at the top of wheel arches. They're the reason why wings rust there.

All rust was cleaned, and cleaned again, metal treated and all sprayed with thick layer of underbody sealant, I did forget to put it back on one side, what they're for? Couldn't figure it out

[mdz]

Get rid of those foam pieces at the top of wheel arches. They're the reason why wings rust there.

[diesel des]

Just that you don't want it too rich on lpg

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[hunker7]

Don't know seems to be smoother though, and idle is better too. I'd like to put her on a dyno and get readings on petrol and lpg.

Dmitri mentioned something called "lean burn" on lpg, any idea what he meant?

[diesel des]

More power now?

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[hunker7]

Might just be blowing soot out if the exhaust now it flows better. Or its way too rich on petrol.

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I think that's what it is. Didn't get anything like that again. Don't think it's running rich, runs lambda 0.8 maybe a little bit under 0.8.

[diesel des]

Might just be blowing soot out if the exhaust now it flows better. Or its way too rich on petrol.

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[hunker7]

Had exhaust off and because one catalyst was rattling inside I gutted both (I know not the best option but money is tight atm), and driving on unleaded when pushing the car I get black smoke outta back, that's I because of gutted cats or is there a problem?

Also noticed idle is slightly lean on idle, but perfect on lpg?

[hunker7]

Front has been assembled. And then I turned my attention to rear and of course after seeing how rusty it is around where shock assembly screws on I had to clean it and treat it and paint it Also bought new rear track end (other one was replaced year ago) and made sure both are free and can be adjusted. Replaced both bump stops because people think they shouldn't replace them Also managed to weld up the fooked front wing and it turned out pretty damn well if you ask me. Hope to have her running on Saturday. Been only a week and already right foot is itching

[hunker7]

Metal around it is solid so we will try and fix it. S4 wings cost a fortune if you can find any in UK. Drivers side seems to be rusting more than passenger side which is odd. I'll do some more pictures tomorrow before treating the rust.

[RichLV]

All the dismantling done mostly and slowly doing bits so I can start putting her back together. Car was still on original BOGE shocks, that's just over 200k miles Struts have been cleaned and painted. Ideally would've liked if I could powdercoat them, but money is tight. Got a bad surprise when I started removing rust from one of the wings, someone done a pretty **** repair and I ended up with this

Yeah... Is that wing repairable? Or in these cases you just look for another one?

[hunker7]

All the dismantling done mostly and slowly doing bits so I can start putting her back together. Car was still on original BOGE shocks, that's just over 200k miles Struts have been cleaned and painted. Ideally would've liked if I could powdercoat them, but money is tight. Got a bad surprise when I started removing rust from one of the wings, someone done a pretty **** repair and I ended up with this

[hunker7]

Borrowing a compressor from a mate which should make things easier. I'll update this with loads of pictures as I go along