Rod Bearings are Done :(

mr gasket sells brush kit for galleys.

soap and water, rough side of sponge on bores, checking cleanliness with paper towel, then wd-40 finish

I motor oil the bores just before installing pistons.

if it its gona sit for a while, use cosmoline.
i used to dunk the pistons in a coffee can full of oil,but i have heard builders say its not good to do that.