Fuel hard line size


IHC in the early to mid-fifties.

Golden Jubilee
Golden Jubilee

Posts: 601

Joined: Thu Nov 29, 2012 9:55 am

Location: Mesa, Arizona

Post Sat Dec 05, 2020 4:00 pm

Fuel hard line size

Does anybody know what the original size the fuel hard line was on the BD240? From what I can measure of the small left over piece I took off my truck it had 5/16” line from the fuel pump to the carburetor. Those AN fittings for 5/16” are hard to find for a check valve and fuel filter, was thinking of going to 3/8”. I question if 3/8” hard line is too big?
1956 S-102 Short Bed BD240

Golden Jubilee
Golden Jubilee

Posts: 1322

Joined: Fri Nov 30, 2012 6:32 am

Location: Minnesota

Post Sat Dec 05, 2020 4:10 pm

Re: Fuel hard line size

My S was 5/16th, except for the draw tube in the tank which was 1/4". Changed that to 5/16th

Golden Jubilee
Golden Jubilee

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Joined: Thu Dec 27, 2012 12:45 pm

Location: Canada's left Coast

Post Sat Dec 05, 2020 5:11 pm

Re: Fuel hard line size

Size maters in the bedroom, maybe, but not under the hood. Go for the 3/8". A good fuel line tip is to install an inline check valve ner the tank. This extra protection against fuel drain-back will save the starter from lots of extra engine cranking. 6
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Golden Jubilee
Golden Jubilee

Posts: 601

Joined: Thu Nov 29, 2012 9:55 am

Location: Mesa, Arizona

Post Sat Dec 05, 2020 7:03 pm

Re: Fuel hard line size

Thanks guys, I was planning on using a check valve. I don’t like a dry fuel pump when trying to start up. I originally bought 3/8” tubing and then measured the piece I took off years ago and found it to 5/16”. I think I’m going to stay with what I bought 3/8”. Seems easier to find (3/8”) -6 AN fittings than -5 AN fittings.
1956 S-102 Short Bed BD240

Golden Jubilee
Golden Jubilee

Posts: 601

Joined: Thu Nov 29, 2012 9:55 am

Location: Mesa, Arizona

Post Sun Feb 21, 2021 2:48 am

Re: Fuel hard line size

Well, fuel line is done except now waiting for the tank to come back from the repair shop. Having it cleaned and changing the pick up tube to a welded in 3/8” tube with a screw in port on top. Tank should be done this week.
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1956 S-102 Short Bed BD240
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Golden Jubilee
Golden Jubilee

Posts: 1842

Joined: Thu Nov 29, 2012 10:40 am

Location: Wichita, Kansas

Post Mon Feb 22, 2021 1:21 pm

Re: Fuel hard line size

Looking great!

Dean
Lifelong Kansan
Grew up with red paint
Moved off the farm 30 years ago.

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