oil in the coolant

[reds919hornet]

Originally Posted by mart211

I agree with you, you're on the right track.
But i'd start from waterpump, cause like you said...headgasket can leak coolant into oil, not the other way around. On 636, waterpump and oilpump are connected, the are on the same rod just one side pumps water, other side oil. If the seal or waterpump itself goes bad and waterpump side is not working...you dont get that much pressure on that side and oil pump starts sending some of his pressure thru the seal into coolant. And thats and easy check, just remove the waterpump cover and see whats under there.

he is working on the r6. the oil pump is on the other side of the timing chain gear from the water pump. but I guess where the shaft goes into the pump is lubed under pressure with oil so might be possible.