C63 AMG (W204) 2008 - 2015
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Catch Can question

Old Nov 2, 2020 | 01:52 AM
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2012 Mercedes C63 AMG
Catch Can question

Probably a stupid question, but I’m a little confused. Do the Precision Works fittings replace the crankcase vent valve breather pipe? Thank you for your help.


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Old Nov 2, 2020 | 05:49 AM
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no it adapts the catch can to be attach to the PCV valve system. the crankcase side of the PCV will still be attached to the engine.
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Old Nov 2, 2020 | 12:33 PM
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I agree, Barry has it.
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Old Nov 2, 2020 | 05:14 PM
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mercedes 71 280sl. Porsche 930 . Ducati mh900 and ps1000
If we use the original fitings from the pcv valve to install the catch can
do we gut the inside if the pcv valve?
There is no one way valve on the after market catch cans so the path from crankcase to intake is always opened ?
thanks guys
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Old Nov 2, 2020 | 06:00 PM
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no...you need a valve some some sort, otherwise you'll have your intake sucking all the oil out of your crankcase over time.
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