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  #1  
Old 19-08-2008, 09:33 AM
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Default Mystery oil on bonnet scoop area

Wonder if you guys could advise.

This morning I started the WRX as usual and moved out. The car vibrated a bit when cold but soon it was going as normal.

A little while later I noticed some drops of oil at the bonnet scoop area (about 8 small drops) closer to the driver side.

Popped the bonnet and did not notice anything leaking. Engine oil cap was tight.

Drove it for a distance and no smoke or smell coming from the engine bay or exhaust.

I was sure that I did not spill any oil around the bonnet scoop area as the car is parked most of the time under cover.

Funny thing is that the oil seemed clean. I rubbed it between my fingers and it definitely was not water.

I still have the spiltter below the bonnet scoop.

Where could the oil come from? I did some searching and it seems that if the turbo seals are blown, then there would be heaps of smoke? Or could it be the turbo return lines, but wouldn't a leak affect the performance of the turbo?

Thanks in advance for any help.

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  #2  
Old 19-08-2008, 10:11 AM
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when you say 'bonnet scoop area' do you mean inside the bonnet or on the outside?
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Old 19-08-2008, 10:30 AM
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Do you have an atmo BOV pointing towards this "bonnet scoop area"?
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Old 19-08-2008, 10:40 AM
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Default

yeah sounds like blow by either coming from the bov... leak in the tmic rubber joiner... disconnected rocker cover breather
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