Don't worry, I share your enthusiasm for flammable gasses and I'm staying away from them. I have tried a couple of freezing/boiling water cycles, which had no effect. I currently have the parts soaking in PB Blaster and I'm thinking of giving a vinegar soak a try.
I hope that something will eventually work, if I can be patient enough.


Quote Originally Posted by Preston View Post
I would not use propane or any other liquified flammable gas. These materials have very wide explosive ranges and very high expansion ratios, e.g. Propane is 1860:1. Never use liquid oxygen! If it comes in contact with any grease or oil, a flash fire will result! If you do use a liquified gas, I would suggest carbon dioxide. Use it in a well ventilated area. Be sure to use eye protection and suitable gloves.

--P