Postwar Lionel Smoke Unit riddle

CharlieS posted:

One of the smoke units is pictured below (lifted from EBay). I think it is a 247-8 smoke unit, which is designing to mount to the side of a sheet metal Columbia locomotive. As I recall, the puffer assembly is built into the motor, similar to a 2026, but driven from the rods, not a cam on the back of a wheel.
Here is the question: Are there any other locomotives, besides the 247 that use it?

243, 244 for starters.

Rob: Thanks! 

Any thoughts on the wire replacement?

The pictured smoke unit sure looks like the one from a 746.  I just serviced one and it looks the same.  Side mount, glue around the seam, takes a #19 2-pin lamp.

The 247 and 746 smoke units are similar.
The 247 smoke unit, pictured above, has plastic mounting brackets cast as part of the body.
The 746 smoke unit, pictured below, does not have the same plastic mounting brackets. It has a metal bracket.
I had the 247 smoke unit right next to a 746 smoke unit, and I thought they were the same at first glance.
(I got a 746 smoke unit in the lot too)

Edit: While this picture is good to show the bracket, the plastic smoke unit itself does look like the 247 smoke unit pictured above.
I am going to post a photo of the smoke unit I have identified as being a 746 smoke unit in a separate post.

(photo from EBay)

Rebuilt several scout units pretty simple as the glue is chipped away with something sharp and comes off pretty easy as its pretty brittle with age.Clean up residue and re glue. The wire at top is wrapped in a loop and one just un loops it from around the plastic peg.

Installed a 8141 element from traintender works nice.

I have to charge my phone before it will tether to my laptop so I can grab the photos. (seems to be a known issue). I will post them as soon as I can.

Anyway, the liquid smoke unit that I have identified as a 746 part is made from a different mold than the 247 smoke unit. The parting lines are in different places, and there is a plastic bracket on one side only, to which the metal bracket is attached.
The 247 smoke unit has plastic brackets on both sides.

Or is my "746 smoke unit" really something else?

Here are the photos of my 746 smoke unit:

Well, I came up with something to try in order to repair the unused postwar Lionel smoke units with broken lead wires.
I did not find a way to clear the eyelet hole. Anything that came to mind would have also broken the nichrome wire. 
So I carefully cleaned the surface of the eyelet, used a little rosin core flux, and tinned it. I also cleaned the end of the lead wire, bent the very end at a right angle, and tinned it as well. Then I sweat soldered the wire to the face of the eyelet. 

The extra flux seemed to be necessary to get the solder to stick to the eyelet.

I don't think the smoke unit will get hot enough to melt the solder. If so, then the repair should be OK.