Fuel Line Thread Size

[rexus31]

Does anyone know what the thread size of the fuel line is at the carb for an AFB?

 

[70bigblockdodge]

5/16 tubing 1/2" hex threads are probably something close to 1/4" npt but don't take that thread size as gospel.

 

[commando1]

I thought 5/8-20?

 

[Big_John]

1/2-20 for a 5/16 tube flare fitting. I also found a couple references to 1/2-24... the size I thought it was, but I wanted to double check.

I don't think I have a piece of 5/16 tube with a flare fitting on it to check it myself, but I'm going to take a quick look.

http://www.brasscraft.com/pdf/0302_brass_fittings_catalog.pdf

 

[commando1]

I thought 5/8-20?

No. I am serious. 5/8ths