Running a Hornby Bristolian set, new this month. Peco track, Gaugemaster Combi power supply and controller.
I have experienced a sudden loss of speed, quite abrupt. Hitherto the loco and carriages whizzed round the track very confidently and at an even speed on a setting of 40 out of 100. Then quite suddenly, the loco is sluggish, and sometimes labouring at the same speed, and wheels sometimes slipping. On its own, the loco seems fine. The Collett coaches supplied in the set however exhibit noticeable friction, and seem 'reluctant' on (radius 3) curves, where before there was no problem. I have tried a droplet of oil on each axle, to no effect. Track is a month old. My Hornby Pullman cars are wonderfully free and quick moving, so I am suspicious of those Collett carriages.
Any thoughts? Is there something I should be doing or checking? As a beginner I'm rather struggling!
Thanks
Neil