One of our local club members has built a 'proper' diesel electric. Rather than plagiarise the article please open this link and read the whole thing.
http://www.tmmec.org.nz/downloads/349Feb-Mar2016.pdf
But a quote to whet your appetite.
He uses the 3 cylinder diesel engines from small Kabota tractor lawn mowers
Since then Tony has now built the second example and runs them double headed. They sound absolutely fantastic.
Also NZ uses 3' 6" guage so a larger loco when scaled to 7.25"
Pete
Edited By Doubletop on 25/03/2018 11:02:17
Edited By Doubletop on 25/03/2018 11:06:13
Edited By Doubletop on 25/03/2018 11:06:32