I have an MD2040A which is the same as the 'C' but without the upgraded electrics and more shapely heat exchanger.
They're a nice engine - once you get over the fact that they're not a Yanmar or a Bukh and resign yourself to the knowledge that parts are going to cost you an arm plus
a leg or two!!
- Uses glow-plugs, so it takes 10-15secs to start the engine.
- I have the 'standard' panel with the on/off button - and keep forgetting to turn the ignition off.
- Very quiet - for a diesel engine. Acoustic insulation is optional.
- Plenty of grunt and low-down torque (with my 6-ton boat I can still happily tow someone else without any noticeable complaint from the engine!)
There isn't much to look out for other than the usual smoky exhaust (it shouldn't) and to check the impeller (right on the front and very easy to get at). Make sure there are no diesel leaks around the injection pump or injectors that might indicate something is wearing out and needs replacement.
Am I happy with this one? Yep. If I was re-engining and had a choice, would I get another?? Probably not.
Hope this helps.