The pictures were too big to upload and I don't have a converter on this computer.  MIne died.  THis one works so poorly that it takes about 5 tries  aou 15 minutes to post one  message likethis.  I will hve to postpone any frther posting.  You are welcome to post more usefull info though if you all want,  Thank you
George

I am having trouble with this computer.  It's my wife's and it doesn't work well.  I can hardly post. Mine is down.  I can't post for a while.

Yes, that's correct sir.  I will try to post some pictures and identify the model numbers today

One is a Bachmann and the other is a Life-Like.  I don't know how to identify the model numbers.  I bought them 2nd hand.  It did have trouble getting over the rerailers, also.  It would derail or slow down.

jbrock, no they are diesels.  But grinding the gear cover helped on the first one.

I meant to mention that the only engines that have this problem are the two that have those low hanging gear covers.  I don't presently have the right kind of battery for my photo camera.  Hopefully the videos will help,  I would have to take the turnouts out of the track assembly to perform the straight edge test, which I would rather not do since it is difficult to reach into that space to reassemble it correctly.  Maybe in the future I will try  that.

George

Here are some links to some videos that show what is happening.  It is dark in the basement so hopefully you can see alright:

http://www.youtube.com/watch?v=9r0oz0biIwY

http://www.youtube.com/watch?v=kCPy6D2Ul1o

In response to Doneldon:  I think the problem is the cover of the drive wheel axle's gear.  If I grind some of the metal off, I guess there's no way of knowing whethr I can take enough off without puncturing through and still stop the cover of the drive wheel axle' gear from making contact with the rails on the turnouts.  If expose bare metal the short would be worse and wouldcause more damage to the voltage supply.  I wonder if I should make do with it as is instead.  What are your opinions?

George

How do I find out what the whether the code of the track I bought is 83 or 100?  I think I mixed two different code by mistake.  I think some of my engines are bottoming out.