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1967 R502
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Any recommendation on aluminum cleaner or method for use on the engine casings? They are still on the bike. Removing and bead blasting is not an option. Just looking for a casual cleaning agent/method.

San Arthur
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VBMWMO #7654
San Antonio, TX
Joined: 04/22/2007
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1967 R502 wrote:

Any recommendation on aluminum cleaner or method for use on the engine casings? They are still on the bike. Removing and bead blasting is not an option. Just looking for a casual cleaning agent/method.

http://www.vintagebmw.org/v7/node/5745

If you do a search you will find lots of information.

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San Arthur in San Antonio, Texas
'58 R26 '76 R90S '94 R100GS/PD

Slash2
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The accompanying owners

The accompanying owners manual suggests the use of petrol. It actually works quite well but I'd encourage you to do so in a well ventilated area.

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64' R60/2 - 66' R27 - 51' R67 - 68' R69S
88' R100RS - 06' K12R

miller6997
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Petrol should work...

I have also had decent results with WD40 and steel wool, and it's not as nasty to work with.

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Jon Miller
'67 R69S
'13 F800GT

Captonzap
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aluminum cleaner

The HVAC industry uses some stuff called coil cleaner. There are different types, but the one I use is an acid base, with inhibiters mixed in.
It is used to clean the gunge off of the condenser coils, ( that is the one outside) which have aluminum fins. The fins collect crud from the air, and are subjected to the elements, which build up a dull coating over time.
The cleaner is sprayed on, allowed to work, and then rinsed off with water.
It doesn't make them shiny like they were when new, but they are clean, with a matt finish somewhat like bead blasting.
I've used it in a K bike, and was happy with the result.

CZ

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