Andrew's question specifically names some Magnesium wheels - when you've
had sets of both AL and Mg, its pretty easy to tell the difference. I have an
American Racing Mg with a hairline crack in one of the spokes and would
love to get it repaired - but, so far, everybody I talk to about welding Mg
looks at me like I just said "here, hold this stick of dynamite while i
light it"
Damaged Aluminum wheels, on the other hand, absolutely can be straightened
if bent and welded if cracked. Please specify how you can say "with some
authority" that companies doing this should not be guaranteeing their work.
Can you direct us to any race sanctioning body regulation that prohibits
use of repaired wheels? I'm not aware of any and don't see how this could be
enforced without x-raying every wheel.
Cheers,
Jack Mc
In a message dated 7/7/2011 7:37:51 P.M. Eastern Daylight Time,
jdinnis at gmail.com writes:
First off most "mag" wheels are aluminum not magnesium. Second, no they
cannot be safely repaired regardless of which material they are made from.
There are many companies that do repair these wheels, but I can say with
some authority that they will not be as strong as they were originally.
For
normal street use, you might be ok, but you are taking a great risk in
using
repaired alloy wheels. Most racing organizations specifically ban repairs
to alloy wheels. About all they are really good for is the set of wheels
that you put on after you get your car to the show field and take off
before
you leave the show field.
On Thu, Jul 7, 2011 at 5:06 PM, Andrew Uprichard
<auprichard at uprichard.net>wrote:
> Oh all-knowing ones:
>
> Can magnesium wheels (torq thrust, American racing Silverstone, came on
> triumphs) be repaired? My recollection of chemistry would suggest that
Mg
> +
> heat = nasty explosion, but what if you have a wheel with a cracked rim?
>
> Andrew Uprichard
>
>
> triumphs at autox.team.net
>
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