Hi All
A quick how to for those inclined to rewheel the 85. The class 85 wheel is 4ft diameter. The nearest I found when I did my 81s was the Alan Gibson 3ft 11 disk and as thats within the wear rate so that what I used. The Bachmann model uses split axles and picks up through the bearings. As the Alan Gibson wheels have plastic middles (and I didn't have any split axes) I drilled through the gear with a 2mm drill and pushed it onto my new axles.
I was chuffed to see that Bachmann have done the gubbins on the face of the wheel and even more chuffed to see it a separate bit. Icing on the cake is that when fitted to a P4 wheel the wheelset still fits between the sidefames. The moulding is glued to the wheel and 2 prongs sit in holes. I drilled these from the back and taking it slowly (and with the stereo off) you can hear the glue fail. The Backs were cleaned up and they were glued to the new wheel.
Cutting the old pickups back I soldered a bit of .3mm brass wire as per the picture. These were bent to bear on the back of the tyre.
Before and after. For those wanting to renumber their models a spot of turps substitute on a cotton bud and a little bit of rubbing and the old numbers came away nice and cleanly.
HTH
Jim