oil level

["Oppedisano, Roy" <Roy.Oppedisano@domain.elided>]

Lets say someone had a 1750 with an early rectangular oil pan with no
dipstick in the block or oil pan.(I just realized this last night-thats why
I couldn't sleep well). How could he check the oil level? He could put a
tapered pipe plug in the side of the oil pan , but at what level should the
oil be say from the bottom flange of the block? Why is there air? Why is the
sky blue? So many questions , so little time-Roy

------------------------------