<<<<<<<<<<<
Actually, this is the standard sign for worn stem seals. The reason is
simple. When you turn off the engine, the oil in the heads sloowly leaks
down
though the valve stem seals. >>>>>>>>>>>>
Actually,
if you have standing oil inside the rocker covers that is above the level of
the top of the valve guides, and leaking down through them, the bad
stem seals are the least of your worries.
Michael
Roger and Michael in San Diego
67 Crown Convertible "Moby"
73 LeBaron Coupe "La Bomba"
56 Sedan