Hello

Just acquired a second hand N Class in good condition from Hattons -( why do they put so much emphasis on the condition of the box?)

The loco moves well , but the front bogies derail on every single point, except in reverse. No problems with diesels, EMU or 4-6-2.

Is there a fix for this and is it a common issue?

The first thing to consider is how easily does the bogie swing from side to side?  If it is at all stiff, please try backing off the retaining screw a tad.  Full size steam locomotives have, over the years, had exactly this problem and the correct amount of bogie side control has been the solution.

Hopefully, others more familiar with the model will contribute further ideas.

With regard to box condition, collectors get in a real state about boxes.  Particularly collectors of Wrenn '00' engines!

With all good wishes.

John

As per above, check for free movement of the bogie first. If the buffer beam details have been fitted and the front coupling is not removed, it will cause problems on tight curves (R1,2) and settrack points. Can't recall if these have front steps in the detail pack, but again if fitted will restrict movement and cause issues on sharper curves.

The other possible problem is an out of gauge wheelset.

Then check the bogie back to back measurement to wide or too narrow will derail as described.

Thanks for your advice.

As usual with me it was my track that caused the issue. A few members on this forum have told me numerous times - "keep the  track clean and get grit from the points".

If anything the front bogie on the new loco was too loose and was being disrupted by a tiny spot of solder on a point, which only showed when younger eyes helped me.