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repair air valve threads on radiator

lakefruitlakefruit Posts: 18Member
edited September 2019 in Strictly Steam
Hi Guys. One of my radiator has bad thread. It is so bad that regular 1/8'' tap doesn't work anymore. I looked at internet and found this video that showed to drill a bigger 1/4'' hole and use an ⅛-inch to ¼-inch bushing.
Has anyone done this before, is it relatively easy for an average ppl? I am kind of afraid that I might damage the radiator.



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