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Author Topic: Question about my PMR #1 engine...  (Read 1380 times)

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Re: Question about my PMR #1 engine...
« on: March 29, 2019, 06:30:48 pm »
graphite yarn or teflon yarn for rings available at local plumbing supply works well in small steam engines as well, and really no break-in period.
crazydoug
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