Alvin, I think you want to scrape off the tin plating so if
you've just got stale gas residue pouring a gallon of Gunk
carburetor cleaner in it and sloshing it around then letting
it sit for a few hours might do the trick. Every serious
gear head has a gallon of Gunk Carburetor cleaner sitting
in the corner, don't they??? Heck, I've got three.
I've been soaking my pistons in it over night and it does
a pretty good job at removing most of the oil stains. Of
course
the really baked on stuff above the top ring and on the
dome still needs a little more care. That's where the
Soda blaster comes into play.
dg
Last edited by Denny Graham; 10/24/2015 2:11 PM.
