Hello,
Removing the grit from only cogs should not be a problem it you use an ultrasonic cleaning unit... I would be more concerned about the freewheel body... I hope the ebay seller that Aldo mentioned removed the freewheel body before sandblasting the cogs!
Regards, Steve Neago
Cincinnati, OH
> Re: I never thought of cleaning my bikes with the shop sandblaster.. .
> wonder how long it would take to TriFlow all the grit out of the
internals?
>
> The only sandblasting that I have seen that does not "kill the metal" has
> been using corn as a medium instead of sand. This is a non abrasive method
that
> works. Now try to find someone in your area that can do it?
>
> The best metal cleaning / rust removal system that works on non painted
steel
> is Muriatic acid. Dangerous but efficacious.
> Stuart Garfield
> Lynn, Ma