Hello Bill,

I would worry less about the engine and the wire (with the exception of
connectors) but more about the body and frame of the car. It is almost like
spraying it with a saline solution which is very sticky. Basically steam
clean everything right after the use of an extinguisher and reseal the
surface. Unfortunately the powder will usually be used when there is a fire
which burns the paint and exposes the metal. But sometimes you just have to
make difficult choices: life over limb.

Cheers,

Bj�rn

At 01:00 PM 10/11/00 -0800, you wrote:
>The powder in an A,B,C type
>extinguisher is very corrosive and difficult to remove from cars once
>applied. That's where there is additional damage in the long term through
>rust. 
>
>Bjorn,
>corrosive to an aluminum engine?
>any idea which stuff would be affected most?
>(yikes, copper wires!)
>any idea what it takes to clean an engine up after using an ABC in there?
>
>thanks,
>Bill
>