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excess oil during track day


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1999 C4,

IMS bearing original,

Tiptronic

Engine never been out of car.

I never have oil dripping on my driveway.Slight signs of wetness at the wire exit point of CAM position sensor, tightened against this grommet seems to fix it. I can smell burnt oil when I push it hard around town even though I never see leaks. This tells me there is some small lead somewhere. Suspect is bad AOS?

I did my first open track day at New Orleans Motorspeedway (was a blast) but after my 3rd session the bottom of engine was full of oil concentrated on the Driver side. Sprayed up all over rear bumber. Oil level still full.

Sprayed it all off at carwash and today at home it seems to be back to normal, no signs of leaks or drips on driveway under normal driving. Could this have come from bad AOS or some other overflow point during hard cornering at the track?

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1999 C4,

IMS bearing original,

Tiptronic

Engine never been out of car.

I never have oil dripping on my driveway.Slight signs of wetness at the wire exit point of CAM position sensor, tightened against this grommet seems to fix it. I can smell burnt oil when I push it hard around town even though I never see leaks. This tells me there is some small lead somewhere. Suspect is bad AOS?

I did my first open track day at New Orleans Motorspeedway (was a blast) but after my 3rd session the bottom of engine was full of oil concentrated on the Driver side. Sprayed up all over rear bumber. Oil level still full.

Sprayed it all off at carwash and today at home it seems to be back to normal, no signs of leaks or drips on driveway under normal driving. Could this have come from bad AOS or some other overflow point during hard cornering at the track?

There are no "overflows" on these engines, the oil system is sealed because it operates under a slight vacuum (around 5" of water). It also does not take much oil to make one Hell of a mess. Suggest you need to clean off the engine so you can look for where the leak(s) are coming from. Could be the AOS, the oil fill tube, or any number of other places where actuators or sensors come out of the system.

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