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02-17-2006, 11:46 AM

Replies: 54

Wouldn't it be better to have a valve cover breather rather than having a tube going from the valve cover back to the intake???

Views: 7,032

Posted By Sludgy

The PCV valve sucks air into the crankcase. The air that is sucked in usually comes from a hose from the valve cover, which is connected to either a dedicated filter, or betweeen the air filter and...

Forum: General Maintenance and Repair

02-17-2006, 10:05 AM

Replies: 54

Wouldn't it be better to have a valve cover breather rather than having a tube going from the valve cover back to the intake???

Views: 7,032

Posted By Sludgy

Valve cover breathers

Breathers were common 40 years ago, but they were phased out to reduce crankcase emissions which, as I remember, were very significant.....about 30% of total uncontrolled emissions. Adding a breather...

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