Copper crush washer size? Drip tube connection..

[rgnprof]

As I am a 1000 miles from home, I am a little concerned about checking my injection pump timing because I do not have a replacement copper washer - and I sure don't want the thing to leak all the way home.

I know I can find similar crush washers locally at auto parts and hardware stores - but can I find one to match this application? Does it have to be copper - or will aluminum work?

Or can I anneal it and just reuse the old one?

I am trying to get as much info as possible BEFORE I pull the line and connect the drip tube.


Thanks,

ryan