There are no torque figures listed in wartime Daimler manuals, nor in the majority of other British vehicle manuals of the period. High tensile studs and fastenings were not used, so using a standard torque figure for a given size and thread form is not always a good thing. Nothing better than feel, because if a stud is about to stretch or a thread pull, then you will not feel it with a torque wrench. There was actually a torque figure given in a REME publication from the late 1950's, but in my opinion it was a shade to high, having worked on a good few of these engines over the years.