Need to know torque for the valve adjustment nut

Forget the torque wrench and just nip it up with a ring spanner and a two finger pull this will give it about 15lb which is about right ,you cannot do this sort of thing with a torque wrench as the threads can be a bit tight with dried oil or whatever and you must feel the thing correctly like playing with a nice female,think the lock nouts are a 13mm spanner size on this car also if the timing belt breaks then its a valve free engine so no damage will occur ,gas are 12 inlet and 14 th inlet if i remember rightly and allow for wear under the fingers but this engine is so well made i have never seen a worn one as yet