SlotForum banner

Stuttering Analogue cars

1587 Views 13 Replies 6 Participants Last post by  beneke
I have done a search on this forum and found that most of the topics about stuttering cars are regarding digital layouts. My layout is analogue Sport and certain cars seem to stutter in the same places.

The rails look perfect, the voltage is perfect and conductivity is spot on (tested with a meter). I have tried Inox MX3 and electrical contact cleaner on the rails with no change. I have changed the braids with little effect.

The only other thing I can think of is that the front wheels are lifting the braids from the track in certain places. Any other ideas?
1 - 1 of 14 Posts
Sounds like you've tried the obvious things and it is something else. Here's some ideas about what the obscure fault could be.

If the problem is only happening in particular parts of the track, its quite unlikely to be motors on the way out. If a motor was defective, it would be expected to be defective all the way round the track.

Are the cars driven with the tail out where you have the problem? Just possible the conductors in the lead wires are cracked inside the insulation and this only shows up when the guide is turned.

Are there changes of gradient or banking where the cars are stuttering? This can cause pick up problems.

When you say you have tested the conductivity with a meter, exactly what have you measured?
Simply measuring the voltage with no load applied doesn't detect poor conductivity at track joints.
Measuring the voltage when the track is passing a current will show poor conductivity at track joints.
1 - 1 of 14 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.