I just purchased a g scale rr crossing. I'm having a problem with on side. The crossing bar comes down when a train passes as it is supposed to, but one side doesn't does not raise by itself. I tried switching the "trees", but it makes no difference the same side stays down. Any ideas what the problem could be? Thanks.

Is it possible to convert an Annie 4-4-0 to battery power and if so, does anyone have plans they could share? Thank you.

I just installed Bachman's magnetic activated couples on a McKinley Explorer set. How do they work? They will not "close" and the cars do not couple. Also, they are loose in the gear box. Is there any way to tighten them up?