I have a lot of engines I don't run. They fit into a few categories:
Postwar: I have a few postwar Lionel engines, including the ones I had as a kid in the 50's plus a couple I have acquired since. I plan to run them someday, after I get more done on my layout, which has one loop dedicated to postwar and repro operation.
Awaiting repair: I have several engines that I like, but they need work and I just haven't had the time to fix them. These include:
Weaver Milwaukee Road F6a 4-6-4 that seems to have a loose wire inside. This engine is not fun to take apart.
Atlas Dash-8 that needs a bunch of cosmetic and mechanical work. I may repaint this one as well; we'll see when I finish the mechanical work.
Weaver brass 4-6-4 Hiawatha that needs me to collect the best parts from a pile of quasi-junkers to make one good one
Weaver Hiawatha Atlantic that needs tires
3rd Rail Cab Forward in need of some difficult cosmetic repairs
A couple of Weaver VO-1000's in need of this or that
Three MTH electrics needing the automatic pantographs fixed. These I can run, but I need to fix the pans.
And a few more that don't come to mind at the moment.
Awaiting repaint or upgrade:
An old Lionel Northern that is part way to a TMCC upgrade and a repaint to Milwaukee Road
Lionel USRA 2-6-6-2 that is to be redecorated as either Rio Grande or Gadsden Pacific Lines (house railroad of the Gadsden Pacific Toy Train Museum)
Lionel Legacy Mikado awaiting redecoration as Milwaukee Road
MTH B&LE AS-616 to be redecorated as Milwaukee Road
Lionel F-M H12-44 to be repainted and redecorated as Milwaukee Road
RMT Beef passenger set to be repainted in Hiawatha colors
Rail King Scale SW-1 to be redone in solid black with CM&StP herald, as delivered
A couple of K-Line semi-scale GG-1's, one needing a TMCC upgrade and a couple for repaint in Milwaukee Road color schemes
K-Line Dreyfuss Hudson to be repainted to coordinate with Rail Chief passenger cars
K-Line semi-scale Mikado awaiting redecoration as Milwaukee Road
An unbuilt Atlas kit for a "toaster" electric that will get TMCC and Milwaukee Road paint
A few more that I can't remember just now.
Standard Gauge:
CMC/CMT 2-4-0T disassembled awaiting restoration
Lionel 10E disassembled awaiting restoration (I think I have two of these; not sure)
McCoy 2-motor Cascade needing parts and restoration
Lionel 380 needing motor work
Williams repro 381E needing repaint and assembly. This will be done in gloss black.