Hi there,
I have a Bachmann/Liliput 18.3 with poorly valve gear. I tried getting the complete assembly through Bachmann UK, but Liliput have sold on all their parts for these to a german shop, which charges a fortune for postage.
Since I'm supposed to be a modeller, I figured I'd have a go at fixing it myself, except the motion appears very different from standard Walshaerts. Wikipedia tells me they called it a Heusinger motion, except wiki also tells me it's the same as Walshaerts, which it clearly isn't.
Could someone who has one please do a short bit of video of the valve gear working, and upload it/send it to me? Or even better, if they're in the vicinity of Cambridge/Newmarket, let me have a look myself?