Bought a second hand EWS Hornby Class 56 (Flywheel Drive, Rotating Fans version) at the weekend from a dealer I've had good service from over several years. The model was sold in as new, unrun condition for a good price. It works OK but compared to my other high spec Hornby locos ( 2 x 31's & 2 x 50's) it's running is less than smooth with a dissapointing low speed performance. I've looked at the wheels/pickups which appear to be spotless. I'm using standard 12v DC control (H&M & Gaugemaster) and the directional lights all appear to work as designed.
I seem to recall that there were some issues with the rotating fan units on some models - could the belt drive for the fans from the motor flywheel be affecting performance? Maybe it just needs a good session of running in - if so how long would you recommend?
Any help or advice greatly recieved as always.