Cleaning carbon deposits on valves/pistons?

[Aaron]

As above really.

What do you use to get rid of carbon deposits?

cheers

[Gandi699]

wire brush fitting for a drill did the trick for me.

[Rossp]

Gently with wire wool and petrol.

[VTRelite]

Got my friends dad to do it in an acid bath

[Gabbastard]

brass bristled brush and paraffin worked for me.

[blackie_2k5]

If you have use of a pillar drill..

Stick the valves in the drill, use some coarse emery tape of the bottom, then some finer.. Then autosol on a rag.. Then a clean rag.. Should be nice and clean and polished up, for the valve stem do the same, just keep away from the seat do you don't damage it

If your removing the pistons, leave them in some coca cola overnight, or paraffin/diesel

If your not, some fine emery tape.. Just be careful to remove all the crap