ac6000cw
Established Member
What is 'agricultural' about the EMD 710 diesel engine? It's a similar design vintage to the Mirrlees unit in the class 60 (and some of the later build 66s meet the tighter stage IIIA emissions requirements).From what I understand the class 60 is a far superior loco for heavy haulage, but the Mirrlees power unit is not as robust as the agricultural EMD.
Just changing the gearing won't turn a 66 into a 59 or a 60 - the 66s have lower rated traction motors and alternators than a 59, and the 60s have more advanced per-axle electronic wheelslip control versus the alternator-based (and hence whole-loco) electronic wheelslip control on the 59s and 66s.I’m not qualified to answer that, but it’s a rumour from several drivers at different depots, it may just be that, a rumour.
But have heard many drivers say the 66/6 are not up to the job they have been altered for.