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Engine breathers?

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Old Oct 18, 2009 | 09:25 PM
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si-thee
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From: Worksop S81
Default Engine breathers?


Been studying this picture why not just vent the breathers to atmosphere instead of back to to air inlet surly any oil vapours will just be sucked back into air inlet?
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Old Oct 18, 2009 | 09:33 PM
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Fit a catch can and vent to atmos. The original oil breather system will direct the vapours into the inlet.

I got a drawing of how to fit a catch can somewhere, i'll see if I can post it up
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Old Oct 18, 2009 | 10:54 PM
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Originally Posted by si-thee
Been studying this picture why not just vent the breathers to atmosphere instead of back to to air inlet surly any oil vapours will just be sucked back into air inlet?
Not if there's an efficient separator in the "box". Under those circumstances the inlet will be getting clean (or near as dammit) air.
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Old Oct 18, 2009 | 10:54 PM
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https://www.scoobynet.com/technical-...uide-pics.html

https://www.scoobynet.com/technical-...n-install.html
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Old Oct 19, 2009 | 07:46 AM
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From: MY06 STi Spec D
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Originally Posted by si-thee

Been studying this picture why not just vent the breathers to atmosphere instead of back to to air inlet surly any oil vapours will just be sucked back into air inlet?
Why is the oil drain going back into the crankcase breather again?

Plumb it into a sump return or drain it regularly from the separator & put back in engine
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