Hi Guys just thought I would bring you up to date with my progress Completely stripped the loco down with the exception of the centre non-flanged wheels to help with quartering. But made sure they were clean and lubricated and running freely Turned 0.30 off the backs of the flanged loco, plastic bogies and tender wheels and turned the flange diameter on all down to 1.00mm high. Carefully rebuilt the chassis cleaning and lightly lubricating in the process. Replaced the plastic insulation bushes in the flanged wheels. I found it better to assemble the non-insulted wheels on to one end of the axle first. It is then easier to push the other wheel into the plastic insulation bush and adjust for quartering if needed. Important to check and set the distance between the wheels to 14.20/14.30mm I then tried the chassis on the track and points by hand and all ran well. Fitted the motor and Hornby Sapphire decoder and tried on track all working in both directions. Finally fitted the cover and the bogie wheels carefully tucking the insulated decoder inside. The train runs really, really well on the track and over the points. I fitted a reconditioned motor so ran in for half hour in each direction. The loco is really fast and smooth, not as fast and as quiet as a modern model but not bad for 60 years old! Hope this is useful.