There are 2 cylinders. Each cycle of each piston produces one chuff. Gear ratio has NOTHING to do with chuff rate. Crankshaft rotation does.

No to both questions.

Quote from: Hunt on April 10, 2018, 10:17:00 PM
To be sure you are not mistaking a DC dummy plug for a DCC decoder, go through the following,

Are you using NCE Power Cab DCC system? If so, Recovery Programming (Option 7) best used  only with old NCE decoders. If not Power Cab, what DCC system are you using?

Reset the decoder.  If there is not a sound decoder installed,  programming CV 8 with 8 will reset most decoders CVs to their factory default value.

After decoder reset -- Can you run and control the locomotive with address 3? If so, read the value in CV 7 and CV 8 - what is it?

Sorry, Its a power cab, NOT a pro cab. Reset CV 8 with 8, Still nothing except dim lights. CV 7 and CV 8 were both blank ie showed NO value, waiting for me to enter a value,

There is a decoder on board. I went into "use program track" > "recovery programming" > "standard Programming" > and set that up, but still only dim lights.

 I just received this loco from a fleabay seller. I set it on my test track using nce procab. The lights come on dim.
Nothing else happen. I renamed loco to 3. No response. I contacted seller who claimed he used a transformer (DC) and claimed it ran forward and backward. Could the transformer have damaged the decoder?

Still waiting on my 2-6-6-2, and have been searching for a sound module with no success. That explains why. Thank you very much.

I'd like to see tenders for the Shay, Stearns Heisler and Climax that would transform the two truck locos into three truck. The Heisler and Climax should come with pass through gear box truck which would replace the rear truck on the loco, moving the original rear truck to the tender. Too bad Backwoods Miniatures is gone. I just stumbled upon their web page by chance about 3 weeks ago. Maybe....just maybe Bachmann will get their producers on them.

Are the sound modules for the 2-4-4-2 and the 2-6-6-2 interchangeable?