Originally posted by BSOELMAN:
there is also an oil seperator between the heads underneath the lower intake. it has two tiny bolts holding it on and they work lose letting the gasket push out. the oil then builds up in the valley and will eventually run down the front of the engine and look similer to the front main or timing cover leak. I spoke to Terry Haines about this and he said it is quite common on all duratech engines. ditch the gasket, silicone it and thread lock the crap out of it if that is your problem.

The bolts are not working loose. The gasket over time develops a compression set and the clamping force is reduced. (google compression set if you want) This is due to aging, temperature, chemicals like oil, etc. Threadlocking the bolts will not help. BTW, the gasket material was revised a year or so ago. Should be better. But, I do agree that having to take head off to replace the separator is dumb.