Toledo Torch does not sell parts, we rebuild equipment. History has shown that over half of the people that attempted a repair themselves either had to bring it back and have us fix it, they damaged the equipment, or had a catastrophic failure.
Some of the manufactures we represent do not allow us to sell parts, and after a customer of ours had a catastrophic failure of an oxygen regulator after he replaced the diaphragm we decided not to sell any internal parts. Fortunately he was not seriously injured but a law suit was threatened. After it was discovered that he applied grease to the diaphragm to "get a better seal" we explained the hazards of oil and oxygen he realized he was at fault and no further action was taken. But this just goes to show that just because you have been using this equipment for a long time doesn't mean you know how to repair it.
Oil and other petroleum products should never be used in torches and regulators.
We have thousands of dollars worth of specialty tools and countless hours of training to properly repair torches and regulators. From cutting tools that are used to re-seat heads and valve seats, to special wrenches and fixtures to properly disassemble regulators.
If proper techniques and materials are not used in attempting a repair, the item being repaired may become extremely un-safe.
Do yourself a favor and have your equipment repaired by a qualified repair shop, it will save you time, money, and maybe your life.