Is this a 123 series 240D? If it is, I'm shocked that you had to remove the fan to turn the engine. I simply use an injector socket and a half inch ratchet on the crankshaft bolt, and it fits perfect. I adjust them without removing ANYTHING but the valve cover. I even do the same thing on a 300D, although my hands look like they've been through a meat grinder afterwards because the fan is in close quarters on the five cylinder.

The third wrench is not totally necessary most of the time, but occasionally you will get a stubborn one where it is indispensable.

I'm sure the Y, should connect vacuum to all three hoses.

Job well done,