Ho Narrow gauge is Hon3(Hom or tt(table top) track), Hon30 (Hoe,009, n scale track) , or Hoz Mining trams or Rack/ Gear adn cog railways.

Its a climax not a heisler

It has to have a keep alive property like in there KA series or a sound decoder the capacitor  it can blow the decoder if you install it  on a non ka ready board or sound with capacitor

It need to have the dual power mode turned on threw dcc programong

I have added tender pickups to henry's tender and its where my speaker is. i added BFS but then removerd it the wheels have not been dirty in about 6 months  and i pull about 14 lima/bachman/hornby cars with out a problem up a 1.5 % slope

Use SCARM to plan it its free.

If you want a HoZ catalog for a rack railway email me i ordered 3 for a friends dada a while ago but i can email you the pdf

http://www.ajmrailways.com/model-railways/Bachmann-City-Of-London-31_727.html
She can get it for you and she ships to most places
I have bought 3 engines from her.

Go get the parts diagram from the "parts Service & information" tab the click product reference and scroll down to the thomas product line.

The sound Equiped thomas are not actually dcc they just have a board that reads dc voltage and created a chuffing sound. You may have fried your motor