I have a '51 235 with hydraulic lifters, much the same as a 216 splash oiling system. It has been said that the oil distributor "controls" the oil pressure. If this is true, then why does mine see 30 psi oil pressure on a cold start on a cool morning? It has also been stated that the "oil pump controls the pressure directly," on full pressure systems. This is incorrect. Pumps create flow, not pressure. Hotrod's description of the the oil distributor function is correct
