I'm working on running the 2 lines to the block. When looking at the IM side of the engine, there are those 14mm alan wrench plugs. The driver's side one is accessible, the passenger side one is behind a black oil return cannister. First off, aren't those plugs for coolant in the block? I'm guessing not, but even if they have oil on the other side, how do you access the one behind the black return cannister?

 

the black blox has to be eliminated, and the hole it leaves behind must be plugged up with a freeze plug and no, they are not for coolant.