How do i clean my antique vesuviana espresso maker ?

my girlfriend got me a vintage vesuviana stovetop espresso maker for my birthday. i’m so excited about it but there’s a kind of strange taste in it, kind of metallic and musty. i scrubbed out the part that you pour water into, and i ran water with vinegar and baking soda through it (several times), but it still has a weird taste. i think it might be because there is a part of it that the water travels through that i can’t get to to scrub… any ideas ? here’s a link to a picture and description of one http://www.mcaughtry.com/Pages/GS_Coffee/GS%20coffee%20vesuviano.htm…. i’m especially concerned because it says it’s made of aluminum and i don’t want to be fucking up my brain with some weird aluminum rust or something… grr…