Made a 3/8 pickup

[TrailBeast]

Welding it a good idea or would it generate too much heat vs the soldering approach?

I will also be needing to find a screen for the pickup - old screen was in 3 pieces in the bottom of the tank. Anyone know of a part number for either a 3/8" or 1/2" line unit?

In my own opinion silver solder would be the best option with brazing being the second.
Brazing is a lot like soldering, but it takes a bit more heat to braze.
Full on welding I think would make a big mess of it. (plus there's the galvanized coating on the parts to consider)

Silver solder or brazing you would only have to clear a very small area of the galvanizing off the tube and plate it's going through.

 

[FredS]

What happens to the riveted connection for the sending unit wire. Seems it would melt the isolator when soldering/brazing on to it.
The 3/8 feed 1/4 return units are available already made. Just their resistance scale of the fuel level is not very linear.

 

[tnts72]

That is what I am concerned about. This car has an autometer fuel gage so hopefully it will at least be somewhat accurate

 

[TrailBeast]

What happens to the riveted connection for the sending unit wire. Seems it would melt the isolator when soldering/brazing on to it.
The 3/8 feed 1/4 return units are available already made. Just their resistance scale of the fuel level is not very linear.

It could depending on what it's made of, but I would personally rather deal with that and have it solid with no leaks.
If a person were to grind the rivet end off and disassemble that first you could put it back together with a machine screw.

I'm sure you know that though Fred.