I am swapping valve covers again so I need a new breather and found one with a check valve.
My setup has a ME Wagner PCV valve going from the valve cover into the back of the FiTech. So should I use a check valve in the front oil breather? My brain is confused.
From the manufacturer:
With check ball - Air is only allowed to exit the crankcase. It cannot enter the crankcase. This option is used with a PCV system which already has another source for air to enter the crankcase when under vacuum. Also used in applications with a mass air flow sensor so that unmetered air does not enter the crankcase.
Without check ball - Air is allowed to exit and enter the crankcase. This option is used when the PCV system needs a source for air to enter the crankcase when under vacuum. Can be used in applications where the PCV system has been deleted.
Incorporates a check valve to keep unmetered air from coming through while the crankcase is under vacuum. In other words, this breather acts just like a factory oil cap under normal driving conditions and when you get into boost it will release any crankcase pressure present.
My setup has a ME Wagner PCV valve going from the valve cover into the back of the FiTech. So should I use a check valve in the front oil breather? My brain is confused.
From the manufacturer:
With check ball - Air is only allowed to exit the crankcase. It cannot enter the crankcase. This option is used with a PCV system which already has another source for air to enter the crankcase when under vacuum. Also used in applications with a mass air flow sensor so that unmetered air does not enter the crankcase.
Without check ball - Air is allowed to exit and enter the crankcase. This option is used when the PCV system needs a source for air to enter the crankcase when under vacuum. Can be used in applications where the PCV system has been deleted.
Incorporates a check valve to keep unmetered air from coming through while the crankcase is under vacuum. In other words, this breather acts just like a factory oil cap under normal driving conditions and when you get into boost it will release any crankcase pressure present.