TD engine block drain tap

[Steven Tritle <stritle@epix.net>]

Is there a way to remove an engine block drain tap from the engine while
the engine is installed in the car. I successfully installed the tap in
the radiator but am wondering how to accomplish this feat with the
engine block tap. The is very little room to insert the proper Whitworth
open-end wrench (spanner) and actually turn the tap. Has anyone done
this/

Steve
52 TD