Look what I found on my R31 Skyline. 

A video showing rust on the battery bracket. This rust had been there for sometime. I removed all the wiring harness to give a nice clean working field. First I wire brushed it getting it back to bare clean steel. I then treated it with rust converter. Then I painted all the new clean metal with POR-15 applying 2 coats. Next video will show how it turned out.