joeavfc

Ive got a feeling it may have been uneven track, not sure why, the torndao would go round 20 times without coming off them suddenly derail on the same corner again... strange any tips or recommendations? Im new to this, sorry

walkingthedog said: A driving wheel jumping up is normally due to the curve being too tight or the join between to sections of track not being straight. ive sorted it for the time being, removed some ballast frommunder the track and it semsnto habe solved my problem for now, thanks anyway

The Doc said: Hi, I had a similar problem with a Hornby A4 - from the main range rather than Railroad, but the chassis design of all the LNER Pacifics is pretty much the same. I spent weeks relaying track (a real pain because it was permanently ballasted), but no improvement. None of my other Hornby Pacifics (including Flying Scotsman, Tornado, and another A4) had any problem, before or after this. I then compared them all and noticed that the problem loco was derailing because of the front bogie. It is attached to the chassis by a bolt that passes through a slot in a T shaped bracket that is screwed to the chassis. With the offending loco the bracket was screwed on to the chassis very tightly (allowing no vertical or sideways movement, but with the other locos it was looser, presumably allowing the bogie to move up/down, sideways and pivot a bit more easily. Loosening the screw slightly so that the bogie was a bit more floppy solved the problem for me. Have a go - it only needs to be loosened to give a bit of movement. Hopefully this may solve your problem. However, I know from the experiences of a few others on this forum that I'm not the only one to have had problems. And if anyone tells you "Derailments only ever happen because the track isn't laid properly" take it with a pinch of salt - just as often the loco is at fault. seems that one of the main driving wheels bumps up, and only that one? joeavfc said: I run it in the opposite direction and its fine

I run it in the opposite direction and its fine

Will do, it doesnt seem stable on this one corner

The front 4, so the front bogie I guess, the ones at the front

joeavfc said: walkingthedog said: It could be the curve is too tight. Do you know what radius the curves are, 1st, 2cnd, 3rd or 4th. Have a look at the number underneath the track. it only happens on the one corner and its a 2nd or 3rd radius, my flying scotsman doesnt do it, only tornado

walkingthedog said: It could be the curve is too tight. Do you know what radius the curves are, 1st, 2cnd, 3rd or 4th. Have a look at the number underneath the track.

My Railroad Tornado persistently derails on one of my corners and I have no idea why. The wheels seem to bump up however there is nothing on the track or on the inside of the rails. I am new to the modelling world and would appreciate some help