I have had that small front main crank seal leak for some time now (couple years) and it seems to drop like 10 drops every month. no biggie. thing is it hits the belt and pullies and has sprayed my entire opti and plugs/wires as well as the entire bottom of the water pump..should i be worried about my opti that is caked in oil? its a 94 so its unvented. its fairly new maybe 25-30K

 

Vented or not, moisture gets in from where the cap seals to the body of the opti. Also around the electrical connector tower at the top.