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Another thread question - Tractors

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Tony Martyr15/12/2014 10:43:00
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I have acquired a 1955 grey Ferguson tractor and need to modify part of the diesel fuel line by tapping a hole in the Kigass tank (a whole new story!). The fittings are the compression olive type and I thought the thread was 1/8"BSP , it is certainly the same size but a different tpi

Any ideas?

Tony

JasonB15/12/2014 10:46:13
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1/8" NPT ? or the straight version which are 27tpi as opposed to 28tpi of BSP

Tony Martyr15/12/2014 11:05:35
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Of course! - it is certainly coarser than the BSP and I had forgotten about NPT threads.

Thanks

Tony

Robin King15/12/2014 14:09:06
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That sounds likely as NPT are used on fuel threads if I remember correctly. Incidentally, if you haven't already found it'd be worth logging onto the Grey Fergie Forum as it's a mine of useful info - helped me no end with my TED20

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