The four intake manifold bolts located at the corners of the manifold do not require any type of sealant on the bolt threads, however, all other intake manifold attachment bolts do infact need some type of sealant on the threads......I use basic rtv sealant........gets the job done.
These intake manifold bolts require sealant on the threads because the bolts pass thru the cylinder heads and enter the area of the lifter valley (exposed to crank case pressures and oil splashing around........oil splashes on the threads and the crank case pressure eventually pushes the oil up the threads and out onto the top of the intake manifold............seems like the employee who installed the manifold may have been sleepy and forgot the sealant.
As for the starter being covered in oil.......
I would first seal the the leaking manifold bolt threads......and then de-grease the engine ("Purple Power" detergent works great on fresh oil, no scrubbing.....just soak the oil with the PP.....wait a few minutes and hose it of.....) Then drive the vehicle as normal. If the starter again becomes covered with oil, I would look at the seal where the distributor mounts on the intake manifold. If that area looks free of oil, I would next suspect the passenger side valve cover gasket. If the valve cover gasket looks like it is doing it'* job, I would next suspect the oil pan gasket was not torqued correctly and is allowing oil to leak past it and onto the starter. If the oil pan gasket is doing what it is supposed to be doing properly, I would next suspect the rear main seal.....This would be "worse-case-scenario".
Last edited by 1.8TTony; 11-22-2015 at 10:12 PM.