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Author Topic: 1957 Douglas Dragonfly oil drain plug.  (Read 1115 times)

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Offline EnglishAndy

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1957 Douglas Dragonfly oil drain plug.
« on: 22 Jul 2020 at 14:56 »
Hello. Would anyone happen to have the dimensions for the engine oil drain plug for a 1957 Dragonfly, please? We are in need of one and right now the website's parts service is not in service. I am hoping to source an alternative.

Thanks,

Andy
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Offline eddie

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Re: 1957 Douglas Dragonfly oil drain plug.
« Reply #1 on: 22 Jul 2020 at 15:31 »
Andy,
          The drain plug in the Dragonfly (and Mark series engines) is a standard 1/4"BSP brass plug - here in the UK, they are available from plumber's merchants. (Note: the thread is actually .518" dia x 19 tpi.)

  Hope this helps,
                            Regards,
                                          Eddie.
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Offline EnglishAndy

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Re: 1957 Douglas Dragonfly oil drain plug.
« Reply #2 on: 22 Jul 2020 at 16:40 »
Outstanding! Thanks for the quick response.

Andy
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