oil level rises after sitting

[GERRY]

HI all , i have been trying to find out about this problem on past posts ihave seen it before but cant seem to find it , its about diesel oil in sump , ihave had the engine rebuilt bottom end compleatly about 2years ago, it starts and runs great , now when it sits for awhile ifind the oil level has risen in sump , the oil is nice an black so i dont think it is water caused,so i think it must be diesel , i have no primer pump or simeler divice, idont need it since rebuild this brings me to injection pump or lift pump which i dont know alot about, what are the boards on thoughts this ,could this becaused by a broken seal or is it more serious,Thanking you in advance, Gerry

[dexta4]

i'd guess at the seal in the lift pump?

[Brian]

That does ideed sound like the problem but you may need to get the pump seal done as well to be sure. Lift pump first though.

[GERRY]

Thanks lads for your responses,I ill get anew lift pump and see how i get on from there if its still a problem afterwards ibe back again to ask about the injection pump seal. Gerry