Join Date: Jun 2002
Location: USA & Singapore
Ferrari Life Posts: 5,509
I'm thinking a couple of things here. One would be that the car had been sitting a while before you bought it and the seals had dryed out and shrunk a bit. Your high RPM driving boosts the oil pressure enough to force oil past a seal. If that is all it is then I wouldn't worry about it at all, as you drive the car the seals will swell back up and seal properly. It happened on my car when I got it. The dealer disclosed that the cam seals would leave a spot on the garage floor about the size of a half-dollar every week and gave me a set of new seals. After about 2 weeks of driving it, the leak stopped all by itself.
The second would be an actual leak. Check around the oil filter, sending units, oil cooler, oil cooler hoses (and the banjo fittings where they connect to the engine), etc.
The third possibility could be an issue with the crankcase vapor separator. I've attached a picture showing where this component is. All the crankcase "blow-by" gases (which contain an oil mist) are collected in a pipe that goes between the 2 valve covers. From here they go to the separator where the oil is drawn out of the gases. The gases go from the seperator to the air cleaner where they are re-combusted and the oil drains back to the sump through a hose on the bottom of the unit. It is possible that the seperator has a rust hole or crack and at high rpms there are a lot more blow-by gases, hence more oil, and it is leaking there. Or the oil is leaking out a hole in the hose going back to the sump. You can check the bottom of the separator with one of those small telescoping mirrors, but to properly check the hose you'll probably need to jack the car up and crawl underneath.
'79 308 GTS, '82 Jeep CJ7 Jamboree
"Time is what prevents everything from happening all at once."