thank you. It actually worked.  I think I used too much oil and burned out the light and smoke unit.  just started. thanks again, sir.

can someone tell me the procedure to replace the somke unit (I have) in a 51501 prairie HO 2=6=2.  In other words, I dont know how the front comes off.   thank you.

thank you for your help and that of all the other nice railroaders who replied.  I have decided to get a 4-6-0 and forego the smoke.  I already broke the smoke system on the used 2-6-2 prairie I purchased and am going to try to fix it with a new smoke unit.  interesting thought.

I have just gotten started.  Purchased EZ track, DCC control center.  Is it possible to buy an engine which employs smoke, sound and lights made by bachmann. (or is this a bad idea)  I want to stick to bachmann to keep it uniform.  I am a senior.  I have their catalog 2011.  A 5"-6" long locomotive would be best for my 4x8 layout.  I am using a used 51501 HO prarie with smoke (which quit smoking) at this time.  This is a nice length.