Christophe2m6

Hi guys!

Looking for some help as I'm not used to NPT measurements.

Would like to know the NPT dimensions for both connections to my fuel pump.

1- Fuel line from carb to fuel pump Tee connection = about 0.63inches OD
2- Tee fitting connected to the fuel pump: about 0.54inches OD



What could/should be the NPT dimensions?

Thanks a lot for your help!!
Chris

oldcutlass

The approximate ID of the fitting is the actual size. Example a 1/4 in pipe filling has an ID of 1/4 inch.

joe_padavano

Those are NOT NPT thread. The inlet to the pump is a hose barb for the rubber hose. It is integral to the pump on stock style pumps and not replaceable. The outlet is an inverted flare fitting, just like the one on the carb inlet. There are no NPT fittings in either the stock fuel system or the stock brake system.

To get back to your original question, here are the dimensions, as discussed here recently.