David Calhoun

OK, I 'll bite; after being so careful and testing track conductivity as I went along, I now have a gremlin that has popped up. Track was laid and joints butted; soldered where needed; drops made; insulator joiners used on the inside rail of fturnouts etc.

Trains ran great. Ballasted a little at a time. Trains ran great. Shut the layout down and came back two days later. The gremlin reared its ugly head and really got my ire. There are two turnouts where the engine stalls at the frog end of the track; decoder drops off line (no short signal on my Digitrak Zypher); power comes back up to the engine and it jerks and stutters to move or doesn't move at all unless I "push" it a short distance. Then, it takes off running again.

A testing light shows power to all rails. There is a power drop wired immediately after the insulated gap past the turnout. Both approach tracks to the turnout from the frog side show power (test light lights) as do the rails from the other side.

Now what? I've cleaned the wheels on the H-10 twice. It runs perfectly well on other parts of the railroad except at these two turnouts (not near each other on the layout). I've checked continuity and connectivity of the "drops" and the main bus which has overload/short protection.

If you have an idea or suggestion, I'm all ears as my frustration level is about a 20 on a scale of 1 - 10. Thanks.

Chief Operating Officer

The Greater Nickel Plate

Reply 0
RMeyer

Electrical frustration

I would guess that there might be some of the white glue, or whatever material you used to hold the ballast, on the track. It would dry clear and not show up. When you check for continuity you might not have placed your probe on the glue but on an area of clean track.

Reply 0
DrJolS

cold solder joints?

" power drop wired immediately after the insulated gap past the turnout"

Check your feeders' joints. An imperfect solder joint can carry current sometimes, and then not others.  It sounds farfetched, but loco on the track might cause failure of the joints.

Good luck,

DrJolS

Reply 0
CarterM999

 . Sounds like a problem

. Sounds like a problem with the frogs. The frogs rails need to be isolated from the feed rails and a drop wire to the point rails thru a electrical switch as shown in the drawing. The  point rais are not making good contact with the fixed rails.

I use only type 3 switch wiring

This is my                                                                                                                                                                                                                  way of                     wiring switches with a feeder wire thru a 2 position switch. also, both rails off the frog should be       isolated cause the

frog changes polarity as it switches. I tried ME switches and it was a disater. I only use Peko now. They work

perfectly. You get what you pay for,

http://www.wiringfordcc.com/switches.htm

 "HO" TRAINS ARE MY LIFE...AND "N" AND "AMERICAN FLYER" AND "LIONEL" AND EBAY.

WITHOUT CLOSETS, MODEL MANUFACTURERS WOULD NEVER BE PROFITABLE.

CARTERM999

Reply 0
Jim at BSME

More information

What type of switches are you using and how are you routing power through/around the switches?

A picture of the area with the problem and an indicator to where the engine stalls might be useful too.

- Jim B.
Baltimore Society of Model Engineers, Estd. 1932
O & HO Scale model railroading
Check out BSME on: Facebook, Instagram
Reply 0
Reply