Wash your steel shots. put them into a strainer and run water over them till
the water comes clear. ReTumble your aluminum, in a clean solution and soap
and it should come out clean also. Try cutting back on the shots to half
full.
Pat
-----Original Message-----
From: Keith0alan@aol.com <Keith0alan@aol.com>
To: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
Date: Sunday, April 29, 2001 6:52 PM
Subject: More parts tumbling
>Hello all,
>
> Went by the abrasive store to order some walnut shell to try
polishing
>carb parts. While I was there I picked up a couple little bags of steel
shot
>to experiment with tumbling aluminum intake manifolds and such. Filled a 5
>gallon bucket about 3/4 full of shot added about a cup of liquid soap and a
>pretty grungy intake manifold. After tumbling for most of the day it really
>looks good. Threads are fine and you can still see all the machine marks
but
>all the paint, stains, dirt, gaskets, oxidation are gone. It did end up a
>dark gray color that I assume is steel dust or something. When I get the
>walnut shell I'll tumble it in that for a while. When I get around to
taking
>my next alternator apart it is definitely going in for a spin. BTW a
"little"
>bag of steel shot weight 50 lbs or about 20 Kg. With two of them in the
>bucket it is real heavy and the tumbler works pretty hard.
>
> keith
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