ORIGINAL: Wild Foamy
well scratch that idea mate!
i use the alchol method as listed above or soak it in nitro for a while (i doubt it will be in there long enough to do any corrosion damage, but it will help free the bearings and innards, i had to do this with my carb once...)
For corrosion to occur there has to be Oxygen (air) present. If the engine is submerged (under) in alcohol then air can't get to it. Therefore
NO corrosion. Once out of the fluid it needs to be cleaned, dried and re-oiled as quickly as possible.
And for the chemists out there, yeah I know there is oxygen in alcohol but not active to the corrosive degree. You can also soak it in fuel if you want, that works fine. I save old stale fuel for that.