G'day
"Tim wrote" 'A selection of early 1970s Triang Hornby locos and stock. All
still ran well except for two, the ubiquitous Class 31 and 37. Both with
seemingly identical bogies and motor. One runs but slowly and with an
occasional grinding noise. I stripped down and oiled the gears and it ran better, but still >not like it should and still with the grinding noise. Any ideas?' Yes. The grinding noise is caused by a dry nylon bearing on the armature shaft. You need to apply a small amount of oil to the 2 bearings. This should stop the grinding sound but Only Use A Small Drop of Oil.
I hope this answers you question. Thank You Graeme Hearn, New Email: snipped-for-privacy@bigpond.com.au New Webpage: