Running My Intermountain F7A&B

[WGL]

 After getting my F7A to run again by having its wheels cleaned, I next had a problem of power to its track being interrupted.  I have 3 concentric tracks, each one wired separately.  The F7A-B runs on the middle track, the only one without a terminal rerailer.  I got a terminal rerailer to make a better connection.  The next problem was that one or another passenger car uncoupled when the train ran on one long side of my oval, but not on the other side.  I have 22" curves, but the uncoupling does not happen on a curve.  I have 4 Bachmann passenger cars about 76' long & 2 Athearn 72' passenger cars bringing up the rear.  Last night, I tried running the train at full throttle.  I'd assumed that running the train faster would only increase uncouplings, but there were no uncouplings during a dozen or so laps!  I'd also assumed that uncoupling would be more likely to occur on curves.  Neither assumption has proved to be true.

[Jhanecker2]

 I am assuming HO Scale track ,  check to make sure that your rails are correctly inserted into their rail clips to make sure your track is not sticking up and loose.  J2

[WGL]

 Thanks.  I'll check.

[glennk28]

check your track geometry for humps and sags.  Mack sure  couplers are all at the correct height. gj