- Glad I can be of help. It took me a long time to gather all information, lines/unions info, played with the flare tools, learned from my mistakes. This way future DIYers do not have to make the same mistake.
I forgot to mention this:
- After installation, most of the leaks can be stopped by loosening the bolt, then tighten it again.
- On the rare occasion of persistent leak, you can use a
washer (finishing washers carpenters use to install cabinets) per the thread below:
https://www.jalopyjournal.com/forum/...-cents.128479/
- Or
conical washer 2GF-3 (80 cents each online etc.)
- When you think about it, engine oil drain bolt has a copper washer for sealing purpose. So, when you deal with leak on bubble flare, most likely it is from imperfection of the mating surface. This is why you keep the mating surface clean and smooth. If it is rough, you can sand it a bit.
- So the idea of a washer to help with sealing is not new. In fact, per the threads above, they use it on aircraft lines.
- Anyway, photos of the cabinet trim washers and
conical washer 2GF-3 in case you need it to seal difficult leaks...