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On Sat, 2006-03-04 at 01:08, Toby Erkson wrote: > > IMO, "cleaning up connections" is a much over-hyped exercise. The > > only parts of the metal that are important are the parts that are > > pressed against each other, and those parts will always connect as > > long as they are tight. They self-clean, by virtue of being tight and > > the wiping action of connecting them. > > I've always thought this but wasn't sure, having left Electrical Engineering > after my first year... I would recommend that one disconnects the battery and > DO clean the contacts on the fuse box where the fuses are inserted. I > personally have seen circuits fail due to corrosion between the fuse and fuse > holder; even a simple twist of the fuse after it's been dormant in a T3 has > "renewed" circuits. > > > Of course that's assuming that not a lot of the actual copper has > > corroded away. I've personally never seen a wire in a car which has > > corroded away to a serious degree. > > Ooh, I have! And it's normally been the positive wiring. > Ohh, but is very common on radio controlled airplane systems, on the negative side. It is refered to as "black wire corrosion" or BWC. http://www.google.com/search?q=black+wire+corrosion&sourceid=mozilla-search&start=0&start=0&ie=utf-8&oe=utf-8&client=firefox&rls=org.mozilla:en-US:unofficial -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) '05 KIA Sorento SUV russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~