How to clean tops of pistons?

[1BAD68]

I saw a bunch of carbon build up on top of one of my pistons, is there a way to blow that out somehow without disassembly?
Like a cleaner or solvent to loosen it and then run the engine to blow it out?

[John_Kunkel]

Lots of folks swear by Seafoam:

http://www.seafoamsales.com/motorTuneUpTechGas.htm

[is_it_EVER_done?]

I agree with the Seafoam as it's very good at loosening build up, but water drizzled into a running engine that is up to temperature is the best de-carbonizer that I have ever found.

The water is more effective after a Seafoam treatment, but two or three, one minute treatments with water (allowing the engine to get to full temperature between treatments), produces amazingly clean pistons, valves, combustion chambers.

This is something I do whenever I have to pull heads, as it makes clean up a breeze.

[1BAD68]

whats the procedure for using water?

[1BAD68]

I finaly got some Seafoam and used it according to the directions, there was only a very little amount of smoke.
Everything I've read on this stuff says that there will be enough smoke for the nieghbors to want to call the fire department.
So I'm thinking that I must not have done it right or my engine is already clean, any idea's?