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this is probably a dumb question, but I just received brand new internals and I wanted to know if this is how the surface is supposed to be when new. To me it looks like there is a layer of brown grime that can be scratched off if you were to try. Also the H in "autotech" is white while the rest is brown, almost looking like some form of dirt/corrosion? I'm guessing this is just how the surface is, but I wanted to make sure given the emphasis they put on not getting any contaminants on them.

 

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I believe it's just anti-corrosion substance they put on so when it's shipped out it doesn't rust. You have to clean it with brake cleaner anyways before putting it inside of the pump.
 
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