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N52: How much blow-by is too much blow-by? (Video)
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09-12-2019, 10:44 PM | #1 |
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N52: How much blow-by is too much blow-by? (Video)
Like the title says, I’m curious whether this looks normal or not.
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09-13-2019, 12:08 PM | #3 |
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Thanks! Forgot to mention car has 305,000 km’s on it. Oil cap can be removed relatively easily but there is a fairly audible whoosh sound from vacuum.
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09-13-2019, 05:27 PM | #5 | |
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Hard to say whether it's consuming oil, as there's currently an oil leak. It's not the oil pan, as this gasket was replaced a couple years ago by the dealership. It appears to be coming from where the p/s axle enters the oil pan, or in that general vicinity, though I could be wrong. I've just let it be as it doesn't seem serious. My primary reason for asking was that it seemed like a decent amount of exhaust gas entering the crankcase; however, I lack a reference point for what's normal with these engines. The oil looks not great either, but I realize it likely doesn't take long to become somewhat opaque.
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09-14-2019, 01:58 AM | #6 |
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Well hopefully someone else can chime in too. I think it's perfectly normal, but it really is a finger-in-the-air guess. Maybe someone will have some ideas about the leak too
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09-14-2019, 01:59 AM | #7 |
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You sure that's exhaust?
When I remove my cap it looks exactly like that. I also get the slight whoosh sound when removing the cap. Mine doesn't smell like exhaust though, so I don't think it's blow by from the combustion chamber. I believe it's just oil vapor, and that's exactly why we have cyclonic oil separators on these cars. |
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09-14-2019, 02:54 PM | #8 | |
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