I agree with you about the boiler, the broken piece is inside the boiler. I checked the switches and they are in the right possession. There are some other damaged parts like the drawbar, but small compared to everything else. When the tender is hocked up, the lights light up. I open up gear box on the bottom and nothing looks out of of place. If you have any ideas what it could be let me know.If that the damaged spot on the boiler, that is really some odd damage, I also see the headlight is off, is that damaged to. If it were my engine I see no reason why the boiler could not be repaired and the engine should not have to come apart, I would remove the air/steam lines, they just pull off as they are pushed in, some may need a good tug. I would fill in the damage area with something like JB Weld the 5 minuet type, be sure to lay the engine on its side and the glue will run till it sets up. It will require sanding so use smaller amounts and build up in thin coats till level with the boiler jacket. If you have the broken part that's even better, put the JB Weld around the edges, test fit, then put in place till dry, then smoot out with more JB Weld. Also put some tape around the engine weight and seal the hole so the glue will not run inside the engine. View attachment 61144 I see no reason why the engine doesn't run, are the switches under the cab in the right possession, it's got to be something simple. Pics of two LGB Moguls that I repainted and added custom detail parts.
Well I already tried that and nothing. I determined that the motor isn't getting any power. There's a chance that the motor could be bad, I would think that would be quite low. I think I will have to separate the shell and mechanism to access the other side. It's a 25196, it's a 2019s lettered for Durango & Silverton. I know there are some motor block changes due to it's dcc ready.Take you transformer and touch the wire leads to the sliders on the bottom side by the wheels, give the transformer some power say 40-50 % and see if the motor will turn the wheels. Take the roof off, them the cab off, and the firebox in the cab out, you should be able to get the broken piece out of the boiler from here. You could also drop the motor and running gear which does open up the bottom of the boiler and you could get the broken piece out from there to. Do remember sometimes you have to take other parts off to get other off, its hard for me to tell with out looking at it. Here is a LGB service manual, yours should be in there somewhere, but all moguls are pretty much the same.
LGB Manuals : LGB Model Trains, LGB Locomotives, Garden Train Sets, G Scale Model Trains, Look for your engine model number here, or just use the 2018D all are pretty much the same.