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PostPosted: Mon Mar 30, 2020 9:55 pm 
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Joined: Wed Aug 21, 2002 9:37 pm
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Location: MILWAUKEE
I have a set of 4 American Magnesium wheels. The outer rim is heavily oxidized. There is a fair amount of pitting. What are your suggestions to bring back the shine.
Doing it all with elbow grease seems to be the only way, but with what.

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PostPosted: Tue Mar 31, 2020 6:09 am 
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I put them on the rim clamp tire changer to turn them. Then use a buffing wheel on an air grinder. Start with flap wheel if real bad.


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PostPosted: Tue Mar 31, 2020 7:12 am 
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Joined: Thu Oct 03, 2002 10:34 am
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Location: Wauwatosa, WI
Remember bad things may happen with Magnesium dust. Scroll to 14:14 https://www.youtube.com/watch?v=T-YsTF1Slg0

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David Dewhurst
CenDiv Milwaukee Region
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PostPosted: Tue Mar 31, 2020 11:09 am 
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Joined: Fri Nov 13, 2009 5:51 pm
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I cleaned a set of American mags by having them blasted with corn cob. Will get the oxidation, but probably do little for heavy pitting. Like David said, be careful around Magnesium. Had benefit of Ansul Fire School where we had to extinguish a magnesium shaving fire; really scary. Notify any shop working on them that they are really Magnesium.

RJS


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PostPosted: Wed Apr 01, 2020 12:04 am 
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Years ago a school friend and his dad were installing a chain link fence at a machine shop. Didn't notice that the cutoff wheel was blowing sparks into a pile of magnesium shavings... His dad died and he was burned badly from the explosion...


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PostPosted: Wed Apr 01, 2020 3:27 am 
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Made all my spare cash in HS machining Porsche and VW cases. Always had a bucket of sand by the mill.


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PostPosted: Wed Apr 01, 2020 9:19 am 
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Brings back fond memories of Road Atlanta Runoffs, nighttime campfires lit by the the "glow" of burning magnesium cases...


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PostPosted: Wed Apr 01, 2020 10:15 am 
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Al Seim wrote:
Brings back fond memories of Road Atlanta Runoffs, nighttime campfires lit by the the "glow" of burning magnesium cases...


Yes it does then off to Dead Cat Burnout

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PostPosted: Thu Apr 02, 2020 12:42 pm 
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Location: Jackson, MS
Those were the days at Road Atlanta. We did a VW transaxle case at Turn 7 next to our 20 foot high teepee.


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PostPosted: Thu Apr 02, 2020 10:47 pm 
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All you pyros have told me what to do if I can't salvage them. 8)

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