Author Topic: Douglas-47  (Read 1777 times)

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Offline Håkan Lindberg

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Douglas-47
« on: 30 Dec 2013 at 12:20 »
I have a technical question. Have a Mki-47. The question is, what thread it onto the studs to the carburetors sitting on the cylinder and thread the fuel valve in the tank.

Offline eddie

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Re: Douglas-47
« Reply #1 on: 30 Dec 2013 at 17:12 »
Hi Hakan,
                The thread on the carburettor studs is 1/4" BSF (British Standard Fine) and the thread in the petrol tank for the fuel tap is 1/4 BSP (British Standard Pipe)- yes, I know it is a lot larger than 1/4" - this is the size of the thread on the outside of a steel pipe with a nominal 1/4" bore.

    Regards,
                  Eddie.

Offline Håkan Lindberg

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Re: Douglas-47
« Reply #2 on: 30 Dec 2013 at 20:50 »
Thanks, very friendly. Håkan

 

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