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| Fuel pump outlet thread https://slantsix.org/forum/viewtopic.php?t=18330 |
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| Author: | marc426 [ Sat Jul 01, 2006 4:28 am ] |
| Post subject: | Fuel pump outlet thread |
Hello everyone, got a small problem on my new carter fuel pump. I can't find what thread it is on the outlet. It seems like 1/4" but not NPT and when I try BSP it doesn't engage either... What could it be? Since it isn't (or I had the wrong NPT & BSP) 1/4" x 19 nor 1/4" x 18, what TPI could it be? Thanks for your help Marc |
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| Author: | marc426 [ Sat Jul 01, 2006 4:30 am ] |
| Post subject: | |
And by the way, can anybody confirm that it needs a double flared fitting (concave seat)? => There's like a funnel pointing at me when i look in the outlet. |
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| Author: | SlantSixDan [ Sat Jul 01, 2006 7:15 am ] |
| Post subject: | |
The outlet fitting is 5/16" inverted flare (often written as 5/16" IV-flare). It is not pipe thread, and pipe thread will not seal on it. This might be a good time to do the fuel line modification; I have some of the necessary fittings if you cannot obtain them locally. I don't recall what carburetor you're running, but you would probably need only one of these fittings, to provide a hose nipple on the fuel pump outlet so you can run fuel-injection hose up to the carburetor. |
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| Author: | marc426 [ Sat Jul 01, 2006 8:49 am ] |
| Post subject: | |
Thanks Dan! Inverted flare? What's that? It looks like a double flare though! Thanks for the offer, I'll check a few retailers (are there any...  ) before asking you.Not pipe thread... But is it UNC thread? Is it 5/16 x18? Thanks for your help Marc P.S : about the routing trick, it was already done when i bought the car! |
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| Author: | marc426 [ Sat Jul 01, 2006 9:12 am ] |
| Post subject: | |
Ok, i checked and it seems like double flare = inverted flare |
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| Author: | jpope [ Sat Jul 01, 2006 9:57 am ] |
| Post subject: | |
When I did the fuel line mod on my dart I found the fittings needed at advance auto. They were located in thier 'help' section. |
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