Thank you Going Spare I am glad it is not just me on both counts. My intuition is the same but I did not know if there was a hidden quirk with these locos. The loco I have came in knowledge of a stripped or broken drive gear, a common and easily fixed problem on these locos. Inspection revealed the valve gear not located properly on both sides and I think this probably caused the fracture of the double gear in the gear train when it locked up. Each time I relocated the valve gear it dropped out again and the fractured brackets were revealed. The brackets are not shown on the service sheet as a separate item so I am hoping when the new valve gear arrives that they are included. Waffling on sorry! Anyway thanks for reassurance of your view Cliff