Hello, my son and I are just getting started with HO and I have a quick question to make sure the engine is okay.  It seems to run fine on the supplied track (22" radius), but seems to de-rail on the 18" track my son already has.  As I have read this seems to be the trend with the larger engine.

ISSUE:
The rear 4 guides, when held up, seem to hang down really far.  They also will rotate to almost 90 degress either direction.  The front guides don't hang down as far and don't rotate nearly as far.  I hope the pictures attach.

QUESTION:
Does this look/seem correct/normal or does it appear that something is wrong with the engine?