Its virtually impossible to get it in pos 3 with the mounts (metal arms) bolted to the block because the engine wont lift or tilt high enough to get it over the rubber mount studs on the exhaust side.
Lets presume the engine is attached to a hoist via the factory lifting eyes with both mounts bolted to the block, and gearbox mounts not fixed.
1, Remove the mount on the exhaust side.
2, Lift the engine and get the inlet side mount in the pos 3 hole, like this.

When you take the weight of an M30 using the factory lifting eyes it naturally tilts to the left (away from the servo) so this bit is easy.
Once this is done put the nut on the stud but don't tighten it up, its just to keep it in place while you tackle the other side.
3, Lower the engine onto a block of wood under the sump or rest it on the cross member while you remove the hoist,
now wrap the rope around the exhaust manifold (close as possible to the block) then start lifting till the engine is straight/level
4, Fit the mount to the block with one bolt, \/\/\/ this hole is preferred for maximum swingage.

5, Tighten the bolt just a couple of turns so it can be moved about a lot.
6, Swing the mount up and over the rubber mount stud and fit the nut loosely
7, Fit the other two bolts to the block, you may need to lift or lower the engine a tad to get these in.
8, Tighten the three bolts a bit at a time in sequence until the mount is flat against the block then torque it up.
This also pulls the engine into position.
9, Lower the engine and remove the hoist.
10, Tighten the nuts on the rubber mounts.
Done


