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another PCV question!

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Old Apr 25, 2009 | 02:23 PM
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Default another PCV question!

when you blow in a valve, one way is blocked...on a external valve, should the side that air flows through be going away from the motor, or to it?

if that makes sense.
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Old Apr 25, 2009 | 11:17 PM
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look at the picture, the air flows in the direction of the crappy looking arrows:
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Old Apr 26, 2009 | 07:54 PM
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Originally Posted by sroach20
look at the picture, the air flows in the direction of the crappy looking arrows:
ok, yes, but which side going towards the engine?
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Old Apr 26, 2009 | 08:23 PM
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The flat side goes to the engine.
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Old Apr 26, 2009 | 08:30 PM
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Originally Posted by 405HP_Z06
The flat side goes to the engine.
the flat side? you mean the bigger end?


when you are accelerating...does the air flow through? and then is blocked when you decelerate?
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Old Apr 26, 2009 | 08:48 PM
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Provide the following and I'll provide a diagram.

How many ports on the drivers valve cover?
How many ports on the passenger valve cover?
Are you running a catch can? Single or dual? What brand?
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Old Apr 27, 2009 | 02:00 PM
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Originally Posted by 405HP_Z06
Provide the following and I'll provide a diagram.

How many ports on the drivers valve cover?
How many ports on the passenger valve cover?
Are you running a catch can? Single or dual? What brand?
we have talked before, and you helped me. But I am doubting the internal valve in the valley.

drivers valve is blocked. passenger has 1 block, one going to a filter. I have a catch can. one line going to valley, one line going to the intake.

I did have the valve cover going to the air bridge, but the air bridge filled with oil...did not work right.

also, a single catch can. not sure on brand. it just has 2 hose connections. one on top that has a filter, and one on the side

Last edited by VGLNTE1; Apr 27, 2009 at 02:12 PM.
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Old Apr 27, 2009 | 11:09 PM
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Originally Posted by VGLNTE1
we have talked before, and you helped me. But I am doubting the internal valve in the valley.

drivers valve is blocked. passenger has 1 block, one going to a filter. I have a catch can. one line going to valley, one line going to the intake.

I did have the valve cover going to the air bridge, but the air bridge filled with oil...did not work right.

also, a single catch can. not sure on brand. it just has 2 hose connections. one on top that has a filter, and one on the side
The LS3 valley has a fixed orifice PCV 'valve'. I quote valve because it's not really a valve like a normal variable orifice PCV valve.

Are you collecting oil in the can? Have you tried moving the can to the clean side to see how it works?
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Old Apr 27, 2009 | 11:32 PM
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Originally Posted by 405HP_Z06
The LS3 valley has a fixed orifice PCV 'valve'. I quote valve because it's not really a valve like a normal variable orifice PCV valve.

Are you collecting oil in the can? Have you tried moving the can to the clean side to see how it works?
oil is going in the can, but im still getting blow by. a plum of smoke when I nail it, and when im done rowing the gears, it smells of oil.

im wondering if a external valve would help.....or if i just need a vac pump
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Old May 3, 2009 | 01:47 AM
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Originally Posted by VGLNTE1
oil is going in the can, but im still getting blow by. a plum of smoke when I nail it, and when im done rowing the gears, it smells of oil.

im wondering if a external valve would help.....or if i just need a vac pump
A variable orifice valve may help a little, but from what you explain there are other issues. You can use a vacuum pump, but it's just a band aid for a mechanical issue. :-(
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