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Adding PCV valve to 351W - Side Effects? Adding PCV valve to 351W - Side Effects?
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  #13 (permalink)  
Old 09-05-2002, 09:08 AM
cobrajeff's Avatar
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Join Date: Dec 1999
Location: Edgewater, FL
Cobra Make, Engine: ERA FIA, BOSS 351C/Webers
Posts: 1,304
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Default You need to have crankcase ventilation
If you don't have a PCV valve, you should have at least a road draft tube set-up.

When I first put the Webers on my Pantera many years ago, I didn't have any place to plug in the PCV valve, so I just put on two breather caps and let it go. Not long after that, I noticed my engine was building up such crankcase pressure that it would pour oil out the rear main at idle!

I fashioned a road draft tube set-up, and attached it to one of the breather caps, and the problem went away.

Regards,

Jeff
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