The engine of my TR3A was dismantled years ago and the pushrods and tappets sat in a fishing tackle box for years. When I fished them out (a pun) they had surface rust, which I washed away with a professional solvent. Then I polished all with fine steel wool. They are solid but three tappets and a couple pushrods have some surface corrosion/etching. Is there any reason why I can not use these as I rebuild the engine?--jj