Halogenated Hydrocarbons

["G. Cook" <litfuse@triton.net>]

As A chemist, I agree with previous postings, but must emphasize one
thing I don't recall seeing: many halogenated hydrocarbons will attack
active metals: aluminum and magnesium and zinc and most of their alloys.
(especially methylene chloride, and especially when dry).  Brief
cleaning probably won't do much, but soak some scrap aluminum in some
methylene chloride for a few days to see what I mean.  Many carb parts
are aluminum.