1985 VW Jetta oil problem

[ProfessorSDazzle]

So my Jetta has a bit of a problem.

It runs okay just like any old car that isn't in the best shape. After I run it a little bit and i stop it, oil starts running out of the engine somewhere and down the crank shaft, under the car. I'm talking almost all the oil in the system. Also, the air filter is soaked with oil and it is steaming out of the tailpipe.

I don't know what the problem is. I just need to get this car fixed enough to sell for a decent amount. Any help would be appreciated.

I'm no where close to being a mechanic, but I was thinking it may be the PCV valve. Any input would be greatly appreciated. I just need to fix this car and get it off the street!