Deutz mah711 age

[ribbo]

Thank you all for your valuable help.
I have now set the injector to 110 bar...and it is now running...albeit a bit smokey!
My engine doesn't have a drive pulley...but both flywheels have v belt grooves machined in to their rims. I guess it was to drive a piece of machinery at a fast speed (I assume from the flywheel to a smaller pulley?). I know this is an impossible question....but I was wondering what sort of machinery it would have driven??? Any information would be gratefully received.

[ribbo]

I've been told here in an English forum that mah711's were never supplied with v belt rimmed flywheels. Indeed, I haven't seen a picture of another 711 like mine on the internet with them. Mine do look like the original flywheels. The machining of the v belt grooves also look very well done ( so I assumed these were done at deutz... and supplied fitted to this engine). Can anybody out there let me know please?

[MotorenMatze]

Hello,
the Deutz MAH711 was built until 1970. Of course in recent years also with a bolted V-belt pulley.

Greetings Mathias

[countryman]

Yes, but grooves right in the flywheels are unusual. It may work if high RPM rating is required, but the belts will travel unnecessarily fast (meters per second) and use a lot of space. The power of a MAH 711 can be transmitted by a smaller pulley with better efficiency.
Many of these engines are found without the original shaft or pulley. Both are not very easy to replicate. My guess is, someone found a way to work around this challenge...

[MotorenMatze]

Yes, I don't know any grooves directly in the flywheel.

[ribbo]

Many thanks for your replies. At least I know it's probably not a deutz factory spec now. I guess it was done at an engineering workshop as the modification looks as if it was originally made like that.

[countryman]

A good machinist might be able to cut the grooves with the wheels right in place, while the engine is running.