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On 8 Sep 2004 at 10:26, wodkowski@mac.com wrote: > I mean, granted a torch on a gas line full or empty would be a bad > thing no question, but I was wondering that since its the gas fumes > more than the gas itself that ignites, before doing a job like this > would it make sense to build up pressure in the lines to make them less > volatile? The lines usually keep gas in them, but if you shut down a hot engine, much of the gas will boil away, leaving just fumes. You raise an interesting question, but I think the only reasonable answer is that both situations are dangerous, so you MUST make sure that your torch flame never gets close to the gas lines. This applies also to parts of the flame which have "bounced" off the part you are concentrating on. It's fairly easy to forget about the parts that are behind or to the sides of the part you're heating, and those parts can also get quite hot from "reflected" flame, or even just hot gasses from way past where there is visible flame. BE CAREFUL! -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ Shameless link for search engines: http://listarchive.type3.org ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~