Quote:
Originally Posted by Qingdao
Pressure and no pressure (head pressure of less than 15cm is no pressure) 100% different scenarios. I agree.
I ALWAYS use new flat copper or aluminum washers on brake fittings. Oil fittings... sometimes.
I heard an old hillbillie tell me one time you can anneal the copper back into shape and re-use a copper washer. But copper washers like cotter pins are so cheap and plentiful why not just buy a new one. I guess if I was stranded in a desert I could use that information???
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Yes you can anneal copper washers.
Heat to cherry read and quench in water.
You can anneal aluminum washers.
blacken with a magic marker.
heat just until the magic marker burns off.
Air cool room temp.
Working copper or aluminum work hardens both.
To the point where they become brittle and crack.
Annealing them takes both back to there normal malleable state
There are times when you just can't buy what your looking for.
maybe a washer of a certain size and thickness.