Basically I've been looking for a set of bbs rw017 wheels for my fabia I've found a set but its off a fire damaged car and the front wheels have clearly been sat in the fire they at not warped or melted in any way but black from charring will these be structurally sound or would they be weaker from the heat ??

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I'd leave well alone to be honest. Who knows how long they've been sat in heat and how they have been affected by it. 

No no no.

They house your only contact with the road.

Far too risky imo

I've actually had fire-damaged steels on my car before. Having said that, I saw the car they'd come off, and knew they were basically just smoke-covered.

If they've been heated it might well have affect the alloy.

 

Why not drop an email to BBS and ask their opinion?

 

Obviously they've a vested interest in selling new alloys but you won't be worse off for asking. Some company are genuinely helpful.

 

Quick google brings up a few things along the lines of - Do not use a wheel that has been exposed to excessive heat from tyre fires, brake fires, severe system drags or seizures or other causes.

 

Including a book on Truck Driver litigation that said aluminium alloy wheels can be damaged by heat

Edited 17 June, 201411 yr by Aspman

I've actually had fire-damaged steels on my car before. Having said that, I saw the car they'd come off, and knew they were basically just smoke-covered.

Not so bad then, as long as it was just smoke.

 

Heat = expansion/contraction and invisible weakening, and that's what would worry me

Steels will be ok, but not alloys.

Stress fractures deep in the wheel may be present

in the form of tiny cracks within the alloy casting.

Run a mile or however far you need to run to find an undamaged set. 

Aluminium and its common alloys anneal (soften) at surprisingly low temperatures. Some age harden - just give it time, but others need heat treatment and some need to be "worked" to restore their physical properties.

Which have you got?

Have you contacted the manufacturer? They are the only people who know what material was used, and whether any heat abuse is tolerable.

Ill stay away I think the tyres have been burnt off the wheels :-(

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Ill stay away I think the tyres have been burnt off the wheels :-(

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Ah; if you'd said that before I'd have said "avoid" first off.

Yeah, run away screaming. Fire damaged metal is always a no-go. The structural integrity is most likely zero. They'll probably fall apart once the cars weight is on them.

The other issue.... is if the fire was put out...... hot wheels quenched by water......home brew metallurgy....

We're the other two wheels heated?

If not buy 2 cheap ones and 2 new ones

Is it worth the risk? Don't think my testicular fortitude is great enough to take that chance...

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Yeah I'm avoiding but the rears are ok so may buy two cheap ones :-P

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