a little smoke to come outALWAYS causea little smoke to come out
in some casescan ... leadin some cases
the valve to seat properly at times and not worth a flip at other timeswould causethe valve to seat properly at times and not worth a flip at other times
to say(passive) is caused byto say
valve stem breakagecan causevalve stem breakage
running problemswill causerunning problems
to more serious engine problemscan leadto more serious engine problems
in more serious engine problemscan resultin more serious engine problems
to very serious engine problemscould leadto very serious engine problems
excessive oil use and give you oil from the exhaust toowill causeexcessive oil use and give you oil from the exhaust too