Ford Ranger camshaft pulley

It is easy to see put the crankshaft in PMS, and put the cam on the mark the two valves must be closed admission and escape, that is the crossing either in the cylinder one or in the four, if it costs it to leave it is not trained but checks the brands again, sometimes they look good and you give one or two turns to the belt with the hand not with contact and then do not fit if they are ok.