Author Topic: Alloy polishing  (Read 394 times)

Online wortluck

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Alloy polishing
« on: 12.08. 2018 14:11 »
Quick question.  Anyone have any clever ways of polishing out small scratches on timing/primary covers?
'62 Flash
'49 B31
'59 BMW R60
FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750



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Online RichardL

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Re: Alloy polishing
« Reply #1 on: 12.08. 2018 14:21 »
This was my approach for a full-out refinish of a gearbox while cover off the bike.

https://www.a7a10.net/forum/index.php?topic=3133.msg21388#msg21388

Richard L.
Plan on signing up for the world-wide 2017 DISTINGUISHED GENTLEMAN'S RIDE on September 30, 2018. Watch website at https://www.gentlemansride.com for details.

Online wortluck

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Re: Alloy polishing
« Reply #2 on: 12.08. 2018 14:30 »
Nice one Richard, much appreciated!
'62 Flash
'49 B31
'59 BMW R60
FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750



"I may disagree with what you have to say, but I shall defend to the death your right to say it."
Evelyn Beatrice Hall

Online bsa-bill

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Re: Alloy polishing
« Reply #3 on: 12.08. 2018 14:32 »
Halfords sell an alloy polishing kit for £19, the mops looks quite different to the normal kits but it works well enough.
worth a try without buying something more expensive, secret is speed, you need a fast drill cordless won't do it, I use a Bosch that gets upto 3000 rpm

https://www.halfords.com/webapp/wcs/stores/servlet/SearchRouter?srch=Alloy+polishing+kit&action=search&storeId=10001&catalogId=10151&langId=-1
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online wortluck

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Re: Alloy polishing
« Reply #4 on: 12.08. 2018 14:49 »
Thanks Bill, I have a few fast drills like the one you mentioned.
'62 Flash
'49 B31
'59 BMW R60
FS1-E, YB100, RS100, RD200DX,250DX,350B, XS750



"I may disagree with what you have to say, but I shall defend to the death your right to say it."
Evelyn Beatrice Hall

Offline Peter Gee

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Re: Alloy polishing
« Reply #5 on: 21.08. 2018 18:02 »
I bought a bosch random orbital sander, the "green" non-professional version and it was not dear. Goes up to 20,000 rpm (variable) and has transformed my restoration work - I used to use an air orbital with a bigger disc.

I use fine 240 or more grit discs  on covers to get out most of the minor scrapes and micro nicks. Then I have a CETEM polishing kit.........if you have a bench grinder it's easy to get a nose to fit polishing mops.