High Pressure Oil Pump / Top End Oil Change

[action4478]

Originally Posted by Layson

That drain down to the crank case is either for the IPR or the bleedoff for the pump? I am starting to second guess myself... It extends all the way to the top of the reservoir...

From the two illustrations , the oil is going into the resevoir , from both of the stand pipes , one from the filter & the other from the LPOP ,& it looks like the unused oil from the HPOP is returned to the res ...The IPR dumps the oil to the crank case after it has been used ...