N Scale B39-8 Fuel Tank Problems

Hey all,

I just purchased a couple of Atlas N scale B39-8’s, and right out of the box I noticed the engineer’s side of the fuel tank is at an angle, making the fuel cap stick out too much. I tried removing it and refitting the tank, but still no good. Any suggestions one fixing this?

-Christian

Pictures of the problem would help.

Basic question. Does Atlas make a B39-8 in Nscale? They list a Dash8-40B and BW which is close in looks, but I’ve never heard of a B39-8.*

*I only count really big rivets…

Visually the B40’s and B39’s are nearly identical, as far as I know. Seminole Gulf purchased ex-LMX B39-8’s, so that’s what these are supposed to be. I think a few stores online label them in the categories B39/40-8/W’s to denote all the variations.

I’ll post some tomorrow morning, hard to see with my current phone camera, but my new iPhone comes in tomorrow so should be able to see it then!

Here is unit 591 with the crooked tank.

As you can see, unit 591 has a crooked tank, while 592 has a straight tank with no defects.

Here is unit 592 for comparison. This one's tank is on straight.

IF I see this correctly, you are referring to the fuel tank on unit 591 sticking out further on the rear of the unit? Is it dragging? It looks, to me, that it is not fully seated on the locomotive frame… Is it an Atlas unit that comes in two halves? If so, it may not be in place fully/correctly… Of course, it maybe that the frame is milled a little off, so no amount of “remove and replace” will fix it… I would try it though. It might just be a little “off” of where it is supposed to be.

Exactly right! The rear is sticking out too much. It isn’t dragging, but definitely bothers my nit-picky eye. i tried removing the shell and reseating the fuel tank, but it still seems crooked.

I don’t have a B39-8, but do have some Atlas B23-7s. The frame has different sized notches on each end so if the wrong end is forward the tank drags just like that. The fuel fillers line up on both so they look right but it may be worth checking.

I actually checked that too. On the B39-8’s the fuel tank only fits on one way, so it’d be hard to mess uo alignment. I also checked to make sure the fuel sight matched the prototype side with photos to ensure correct orientation.

Have you tried swapping the tanks between engines?

I would also make sure that the frames are screwed all the way together at both ends. If not, the flare might be the reason for the tank not to sit right.