Ian White
I have some carriages in which the lights flicker at times.
They have pick-ups from the track, which were factory installed and I have connected the lighting to the internal contacts.
The LED lights I have installed are of the flicker free type, the axles on the carriages are split and are insulted from each wheel and all wheels have been cleaned.
I have other carriages, with the same lighting, but, where I had to install my own track pick-ups and I have had no problems with these lights flickering.
Does this possibly mean, that, I would be better off doing away with the factory pick-ups and installing my own.
Can anyone "Shine a Light" on my problem?

Regards, Ian White
Quote 0 0
Bunkerbarge
Get some cleaner, such as Track Magic, and wipe all the contact surfaces down.  The Track Magic comes with a lovely little brush cleaner, perfect for getting at wheel contact surfaces, but you can also use a cotton bud dipped in the liquid.  Use the Tamiya type not the cheaper baby ones as they tend to fall apart and leave fibres on the part you are trying to clean.   I would almost guarantee that you have some dirt on either the wheel surfaces or the pick up contact points.  Cleaning everything will, I'm sure, sort it out. 
Quote 0 0
AHJAY
Yes, track + wheel cleanliness matters but....

The clue is probably in the split axles. this sort of pickup is often used for loco power pickup too - but it can be a bit iffy if imperfect.

Your problem is far more likely to be contact between axle ends and the (hopefully phosphor bronze) plates they touch either side of the bogie. Either oxidisation has occurred OR these PB strips are worn or not properly in position for reliable contact.

I'd use a product called De-Oxit gold after you have checked that the PB strips are in position to refresh the contact points a bit... Alternatively, add your own pickups

regards, Ahjay
Quote 0 0
Bunkerbarge
I bought some second hand Hornby Pullman coaches with lighting and couldn't work out why they flickered.  Everything looked OK and it was only occasionally.  When I looked very closely (i.e. took my glasses off!) I could see the build up of dirt on the axle itself where the pick ups brushed.  I suspect they had been used for some time in a less than clean environment.  

I'm sure Ahjay is correct but it is probably down to dismantling and having a very close look at everything.
Quote 0 0
Ian White
Hi Bunkerbarge,

Well, as the saying go's, sometimes, "You can't see the Wood for the Trees". Thanks for the tip of cleaning the pick-up points, it worked a treat.
I now have no more "Flickering Lights".
Quote 0 0
Bunkerbarge
Good to hear it Ian.  I always think it is worth checking out the simplest things first before moving on to the more complex possibilities.

Glad things are OK again.  When it was happening to me I did briefly think that actually electric lights in real carriages often flickered as well so perhaps it was an authentic effect!! 
Quote 0 0