Retapping petcock threads
02-20-2017, 02:36 PM
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Retapping petcock threads
The threads on my fuel tank bung are boogered up. Want to buy a die for it. I know they're 22mm but what is the pitch?
Thanks
02-20-2017, 05:54 PM
Join Date: Dec 2012
Location: Texas
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a quick check with google shows a high probability of 3/8 NPT
Take the petcock to a local ACE Hardware or Home Depot. Should be able to find out pretty quick.
02-20-2017, 07:25 PM
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I did a google search and found that 3/8 NPT was up to 1975, then after that they went 22mm but I found conflicting pitches. I saw one that was 1mm and another that was .75mm..
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