The Ford Barn

Wagga A'er · 11-25-2021, 08:58 PM

i want to clean up the threads on my early 28 fuel shutoff valve.
I know these are a pipe thread.
Can anyone let me know the die sizes, I would need for the three threads on the shutoff.
Thanks
Dave

dave in australia · 11-26-2021, 05:18 AM

Being a USA product, they would be an NPT thread. BSPT is similar, but still different enough that if you use a BSPT threading tool, you will never seal it properly.

katy · 11-26-2021, 01:22 PM

The thread that goes into the fuel tank is 1/4" NPT (National Pipe Taper)18 TPI (threads per inch).
The thread where the fuel line attaches is 5/8"-18
A thread file can be used to clean up the male threads: https://www.amazon.com/General-Tools...82&sr=8-9&th=1

Also see: http://fittingsandadapters.com/threadchart.html

Wagga A'er · 11-27-2021, 01:53 AM

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Thanks for the help guys.
I was able to get it sorted out.

11-25-2021, 08:58 PM	#1
Wagga A'er Member Join Date: Jul 2010 Location: Wagga Wagga - Australia Posts: 78	fuel shutoff Early 28 i want to clean up the threads on my early 28 fuel shutoff valve. I know these are a pipe thread. Can anyone let me know the die sizes, I would need for the three threads on the shutoff. Thanks Dave

11-26-2021, 05:18 AM	#2
dave in australia Senior Member Join Date: May 2010 Location: Victoria, Australia Posts: 1,176	Re: fuel shutoff Early 28 Being a USA product, they would be an NPT thread. BSPT is similar, but still different enough that if you use a BSPT threading tool, you will never seal it properly.

11-26-2021, 01:22 PM	#3
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,043	Re: fuel shutoff Early 28 The thread that goes into the fuel tank is 1/4" NPT (National Pipe Taper)18 TPI (threads per inch). The thread where the fuel line attaches is 5/8"-18 A thread file can be used to clean up the male threads: https://www.amazon.com/General-Tools...82&sr=8-9&th=1 Also see: http://fittingsandadapters.com/threadchart.html __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 11-26-2021 at 08:40 PM. Reason: Correction

11-27-2021, 01:53 AM	#4
Wagga A'er Member Join Date: Jul 2010 Location: Wagga Wagga - Australia Posts: 78	Re: fuel shutoff Early 28 Sponsored Links (Register now to hide all advertisements) Thanks for the help guys. I was able to get it sorted out.