Adapter from carter pump outlet to AN fitting

[Stewsta]

Im going with -6 braided line from the pump to carb. Does anyone know what size the outlet is on a Carter pump on a 440? The only numbers I found on the pump dont show up on a search. From searchng summit they have one pump description that says the outlet is 3/8 inverted flare and the others just say stock. Im sure there may be a couple possible sizes and threads, how do you know if its inverted flare or NPT by looking at the pump outlet threads. Thanks Stew

 

[coloradodave]

If it has an inverted flare, there will be a seat area inside the threads for the hard line to 'seat' against. A 1/4" or 3/8" pipe thread will just be open in the middle (no seat).

 

[snakeoil24]

The pump usually is NPT 3/8 which requires a converter to 6 Army Navy. leave enough room for flex, make the line a little longer to avoid separation.

 

[Stewsta]

Thanks guys. It definitely isn't open straight thru to the inside of the pump and has an area for a hard line to seat against so it must be flared.

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Snake oil, by separation do you mean the fuel line pulling out of the hose end?

 

[snakeoil24]

Yes leave a little flex for the hose so it does not tug. It still may be NPT look to see if threads taper. make sure, so many variations.

 

[coloradodave]

Another option is to use an AN adapter with a 3/8" tapered flare on one end and a -6 male on the other. Then buy a 90* AN fitting to get the line headed up toward the carburetor.

 

[Meep-Meep]

I just bought a Carter pump and it has 3/8" pipe on both ends.

 

[Stewsta]

I ordered a 1/2 inverted flare adapter and was correct.