Carbon/ash piston deposits!!!

[35Remmy]

Isn't there an easier way to remove these deposits from the piston tops? My 2 pistons that were pinging badly deposited this HARD, scaly crap...it took me 2 1/2 hours just to get ONE piston done. I'm using a scotch brite pad and a plastic putty knife.

Car/choke cleaner hardly touches it.

Paint thinner does nothing.

Sooo...I took some (cringe) Hot Power drain cleaner, which is acid...this is the ONLY thing that helps to remove the deposits, and it doesn't etch the pistons...BUT...it dissolves the scotch brite pads!!! And my mechanic's gloves!!! Still takes forever!!!

 

[Cobraguy]

They make a wire brush that fits in a drill. I have a selection that goes from soft to darn near solid it's so stiff.

You can also try oven cleaner...but at your own risk. I have no idea what side effects it may have. But after using acid, I can't imagine you could do much worse! LOL

 

[410Fortune]

chem dip

its a product, works wonders on this