Do physics apply?

[71GMCer]

I just did the intake manifold gasket and Distributor gasket and also plugged the oil pressure sending unit because it was all leaking (according to my mechanic)

It still leaks! So im just wondering if phyiscs apply here? Will it continue to drip until the thick sludge on the sides of the motor and tranny are all "dripped" off? Or is my mechanic just saying that to cover his rear?

Im quite curious because i know the rule is that when things heat up that they become liquified if there a solid, then to a gas, so will the old caked on oil and grease eventually drip away or should i plan on buying oil (again)?

I also did the oil pan and rear main seal so there is nowhere i can think it could be leaking from?

Matt