Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

   I've had success making gaskets out of silicon tubing. I have a few different sizes I bought a few years ago at a hobby shop. The stuff lasts a long time and is soft and playable. The screws will need to be sealed too. A tube of silicon sealer could be used on the screws. They make a high temp silicon for gaskets in automotive. Just try and keep it neat looking so it looks factory..... at least I do.  The drain fitting that's missing might be more difficult if the threads are bad. I think they would solder a nut to the inside of the boiler for more threads and these can come loose. As they leak people keep tightening them and then they strip. You have to get creative sometimes with fixes. All this has been done before so if you run into a jam start a thread on the repair.