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Old 05-16-2011, 08:12 PM
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Proper PCV routing for early 350 chevy V 8

Not sure about how to route the hoses for the PCV system on my Nova's 350 V-8. I'm getting blow by out of the breather caps and i'm sure it's not hooked up correctly as i've done nothing but fix a lot of mistakes on this ride since i got it home.

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Old 05-16-2011, 10:38 PM
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HERE is a link to a diagram of a basic PCV system.

Generally speaking, the PCV valve goes in one valve cover and is routed to the base of the carb where there is usually a port for this purpose. The other valve cover has a fresh air intake that draws filtered air from the air filter housing or a separate filter.
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Old 05-19-2011, 02:50 PM
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pcv valve routing

Quote:
Originally Posted by cobalt327
HERE is a link to a diagram of a basic PCV system.

Generally speaking, the PCV valve goes in one valve cover and is routed to the base of the carb where there is usually a port for this purpose. The other valve cover has a fresh air intake that draws filtered air from the air filter housing or a separate filter.
Thanks for the tip, i think i know what to do with it now. The routing on my power plant was correct coming from the pcv breather cap to the base of the carb,but the guy i bought the car from ,did'nt hook up the breather on the other side of the valve cover to the air breather. Thanks again
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Old 05-19-2011, 03:01 PM
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Quote:
Originally Posted by winterhawk
Thanks for the tip, i think i know what to do with it now. The routing on my power plant was correct coming from the pcv breather cap to the base of the carb,but the guy i bought the car from ,did'nt hook up the breather on the other side of the valve cover to the air breather. Thanks again
You are quite welcome.

To clarify, you can use a filtered breather on the opposite side from the PCV valve- it doesn't have to have a hose to the air cleaner housing, necessarily- but there does need to be something that will allow filtered air into the opposite side fron the PCV valve.

Good luck.
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