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Old Aug 22, 2012 | 10:53 PM
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smdusaf's Avatar
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Default blow back

when in boost every once in a while im getting some nasty blowback and was woundering if you guys could post your breathers so i can get and idea and hopefully fix this... heres mine as it sits currently.
Attached Thumbnails blow back-turbo.jpg  
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Old Aug 22, 2012 | 11:16 PM
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Do you have a check valve in your PCV system?
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Old Aug 22, 2012 | 11:21 PM
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no. im dont understand what that does either if you could shine some light on a blind man haha
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Old Aug 23, 2012 | 12:02 AM
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PCV was designed to work on an intake that never sees boost. Without a check valve you will pressurize the crankcase and cause extra blow by. I originally forgot about this and blew out a valve cover gasket.
Just look at all the hoses and figure out a way to route them so they don't have see boost or add a check valve.
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Old Aug 23, 2012 | 01:17 PM
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With the breather on that oil cap you can lose the small breather and just cap off that port on the valve cover. What you do with the driver side valve cover is much more important, it needs to either have that small breather coming from the pcv valve or a check valve inline between the pcv and the intake.
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Old Aug 23, 2012 | 03:22 PM
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does anyone have a pic for the drivers side breather
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Old Aug 24, 2012 | 01:40 PM
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anyone......
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Old Aug 24, 2012 | 03:21 PM
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Its literally a foot of 3/8 fuel line and a little breather just like you have on the end of it with a brass splice. Stick the other end on the pcv.
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