well alot of what i have read over the net says it happens with the EA82 regularly.
i asked the owner about it and he said he replaced alot of seals but didnt replace the oil pump, did the marvel mystery oil and verious weights of oil.
the pump seals have never been changed, after 183,000 miles and the way its sucked in on that side i would say its a pretty safe bet, you could see on the old seals before i cleaned them where they leaked and the oil was foamy, lots of air not water, when i drained it after running it.
i checked those other cam seals and they are metal re-enforced and arent sucked in, i got the new ones on, i'm sure they might have replaced them before but they didnt replace the oring for the caps. i think they replaced them because one of the bolts is having a little bit of a problem. it wasnt tight and had been stripped but would still thread but i got it fixed.
i really need to know if that will work for a stint or not