is the "waddle" of the classic Eureka and Palisades 2-6-0 a feature? or an alignment issue. Since the true drive is a worm gear on the center line of the engine, the opportunity to induce "waddle" might arise from the valve gear or side rod lubrication (all checked), some imbalance of the wheel/side rod counterweights (unlikely), drive wheel misalignment? The waddle is synchronous with the wheel revolution. Does anyone have any thoughts? Thanks.
Ned Wagner

Is the ESU LOKSOUND 5 XL decoder physically and electronically compatible with the Bachmann Large Scale Climax 85093? Is it truly plug and play or is modification and soldering needed?

Exploded diagram seems to indicate two screws to remove to loosen engine shell. Completed the screw removal, back end released, but front end seems to remain fixed. Any other tricks to remove?