318 oil leak

Permatex Ultra Grey high strength RTV is your friend here. Like said before, get a front timing cover gasket kit Advance Auto Parts - Down for Maintenance, pull the balancer, water pump, and front cover. Make sure the seal surface is good. Trim the pan gaskets off flush with a razor blade. Coat both sides of your gasket surfaces with Ultra Grey, let it skim over, put the gaskets in place and seat in the cover. Seal your wet bolts with Ultra Gray (You can get anal and use high temp thread sealant, but I know commission mechanics use the Ultra Gray all the time for this with no comebacks). Leave everything loose. You want to install the balancer and let it center the cover in place with the seal before tightening the bolts down. This keeps the seal from being loaded to one side or the other and wearing itself or the seal surface of the balancer prematurely.