Re: Front Oil SEAl
>>>I have PCV valve to back of carb and tall filtered vent in other valve cover. Is this sufficient ?
Yes, unless the engine has abnormal amounts of blow-by.
engine warmed up and idling, pull the breather out put your thumb over the hole. Before long there shouid be either vacuum or pressure in that hole. vacuum = good. pressure = not so much.
Tom Terrific or Terrible Tom, depending on the phase of the moon, passing cosmic rays or other factors not fully understood except by my wife.