. It is not easy to spin a diesel eng
to stop precisely at each position called for in your manual. This is
because there is no easy way to release compression, like in a
gas engine with spark plugs.
If you want to do slightly more wrench turning, the engine turning is cake once you remove the glow plugs. Turn with wrench on the crank bolt. May even be loose enough at 1000 hours to turn by hand.