Propane Burner

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  • Step 2: Drill out the jet hole in the brass nipple. For starters, I am using a #60 drill bit for the jet. I may increase that later on depending upon the heat and flame stability I get.

  • Step 3: The next step involves drilling out 2 holes in the reducer bell to accept the 1/8" pipe nipple mounted perpendicular to the flow through the bell. In this case I started with a 13/32" drill but soon found I needed to use a letter "Z" drill bit. The extra .007" was the difference between the brass nipple fitting or not. I first measured back from the large end of the bell enough to make sure the nipple just cleared the thick part of the bell end and then center punched a starter indentation using a spring-loaded punch.

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This site last modified on Sunday, August 15, 2004 07:37:35 PM