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Question about Valve Cover Breather

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Old 09-20-2015, 07:24 AM
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Ipaman
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Default Question about Valve Cover Breather

I have a 1993 GT that has been changed from EFI to Carb. One the driver side valve cover there is a breather. On the passenger side there is a PCV valve and that is routed to the vacuum port on the back of the carb.

My question is why is there smoke coming out of my breather? It isn't a ton but it is enough that you can see it coming out of the hood cowl. Shouldn't it be sucking air in? It doesn't spew oil or anything but I just hate seeing a puff of smoke coming out of my cowl all the time.

Thanks
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Old 09-20-2015, 08:35 AM
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Phillip123
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Do you drive the car enough or does it just sit in the garage most of the time? It could be the condensation from the engine that is being opened up. The smoke usually goes away after you heat it and run it.
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Old 09-20-2015, 09:04 AM
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Ipaman
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Originally Posted by Phillip123
Do you drive the car enough or does it just sit in the garage most of the time? It could be the condensation from the engine that is being opened up. The smoke usually goes away after you heat it and run it.
I drive it about once a week. But the smoke doesn't really go away even after 30 minutes of spirited driving.
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Old 09-20-2015, 09:16 AM
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Here is a video of it. When driving and I really get on the gas it gets worse. Does this look normal?

https://onedrive.live.com/redir?resid=41F1F1B0241B6B60!5021&authkey=!AP3Nlne EsRvaoCI&ithint=video%2cMOV
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Old 09-20-2015, 09:31 AM
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Urambo Tauro
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What does it smell like?
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Old 09-20-2015, 09:33 AM
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Ipaman
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It just smells like normal exhaust fumes to me.
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Old 09-20-2015, 11:07 AM
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Actually I take that back. If anything it smells like gas.
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Old 09-20-2015, 11:54 AM
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67LimeCoupe
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Default Question about Valve Cover Breather

Originally Posted by Ipaman
Actually I take that back. If anything it smells like gas.
You sure the pcv is connected to full vacuum and not just the air cleaner?
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Old 09-20-2015, 05:47 PM
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Ipaman
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Yea it is hooked up to the port in the carb. It was on the back port but edelbrock recommends using the front port so I changed it. There was no difference.
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Old 09-21-2015, 09:00 AM
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mjr46
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you need to make sure it is on the right port drawing manifold vaccum and not ported vaccum
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