Call me Funk
Join Date: Dec 2001
Location: Powder Springs, GA
Doing loads of tweaking to my 67 I have come across something I need help with. It's finally running good without the PCV valve hooked up. I have breathers on both valve covers to a least relieve some of the pressure. I had the PCV off and plugged trying to eliminate a vacuum leak.
This morning I hooked the PCV valve back up and it's idling higer, stumbling off idle and the idle is choppier.
I have read up on the PCV operation here and on the Chevelle site. Good info in both places. I believe the stock PCV valve is incorrect for my application as I am pulling about 10" of vacuum at idle and a vacuum leak is being created through the valve.
Am I correct in that at idle there should be very little vacuum on the inlet side of the PCV valve? My finger was almost sucked through the valve when I put my finger over it.
[This message has been edited by CFunK (edited 04-24-2002).]