pcv valve hose ??
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New User
Joined: May 2000
Posts: 5
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pcv valve hose ??
I was wondering where the PCV valve hose is
supposed to be connected to the manifold.
I have a 360 with a stock four barrel intake
with a Holley600 cfm vacuum secondary. I
currently have the hose connected to a port
on the rear of the carb. I think this may
be causing my rear plugs to indicate a lean
fuel mixture??
Thanks
Mark
supposed to be connected to the manifold.
I have a 360 with a stock four barrel intake
with a Holley600 cfm vacuum secondary. I
currently have the hose connected to a port
on the rear of the carb. I think this may
be causing my rear plugs to indicate a lean
fuel mixture??
Thanks
Mark
Elder User
Joined: Oct 1999
Posts: 917
Likes: 3
From: Kelseyville USA
pcv valve hose ??
>I was wondering where the PCV
>valve hose is
>supposed to be connected to the
>manifold.
>I have a 360 with a
>stock four barrel intake
>with a Holley600 cfm vacuum secondary.
>I
>currently have the hose connected to
>a port
>on the rear of the carb.
>I think this may
>be causing my rear plugs to
>indicate a lean
>fuel mixture??
>
>Thanks
>Mark
Mark the `hose` does connect to the Back of the carb. The PVC valve is in the valve cover opening.
If you think of the PVC valve as a `Controled Vacuum Leak` and it is going to the back barrels you may be right. Its been a while since I looked at the bottom of a 600 holley BUT the passages should be `split` to feed the controled leak to the front barrels also. I had to use a spacer under my 600 holley on the stock manifold to get the Gasket to seal. Just setting the carb down on the manifold produced a passage that was open to the manifold!! And the gasket would not seal it up! AKA >> Lean Condition!
__JOHN__Õ¿ö
72 F-250
ICQ#6030753
http://clubs.excite.com/72FORD-F-250
>valve hose is
>supposed to be connected to the
>manifold.
>I have a 360 with a
>stock four barrel intake
>with a Holley600 cfm vacuum secondary.
>I
>currently have the hose connected to
>a port
>on the rear of the carb.
>I think this may
>be causing my rear plugs to
>indicate a lean
>fuel mixture??
>
>Thanks
>Mark
Mark the `hose` does connect to the Back of the carb. The PVC valve is in the valve cover opening.
If you think of the PVC valve as a `Controled Vacuum Leak` and it is going to the back barrels you may be right. Its been a while since I looked at the bottom of a 600 holley BUT the passages should be `split` to feed the controled leak to the front barrels also. I had to use a spacer under my 600 holley on the stock manifold to get the Gasket to seal. Just setting the carb down on the manifold produced a passage that was open to the manifold!! And the gasket would not seal it up! AKA >> Lean Condition!
__JOHN__Õ¿ö
72 F-250
ICQ#6030753
http://clubs.excite.com/72FORD-F-250
Freshman User
Joined: Feb 2000
Posts: 36
Likes: 0
pcv valve hose ??
You have the right conection. check your pcv valve for proper operation. it shouldn't cause any leaning of any one cylinder over another. These things have been in use for a lot of years with no problems. You could block it off, but the carb is designed to have it in place and will most likely run to rich and get bad gas mileage.
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