Help with Air Cleaner...
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Help with Air Cleaner...
Ok, I have a 302 V8, and today I installed a 14 inch. Air Cleaner (universal) replacing my filtyhy, dented up Air Cleaner Assembly... there was a spot for the Breather Filter hose, but I tried almost everyway, and it wont even reach to the air cleaner, plus, I tried to fit it into the slots on the Air Cleaner, and it doesn't fit ANYWHERE.. there were also 2 other hoses I was told I could just cap, so I did... but what about this breather filter hose, the other side of this hose connects to the back left valve cover (looking from the front of car).. and I dunno if I can just cap this, or what. 
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I can do that? How does that work, and where can I get it done? Because the other end of the breather hose is also loose, and seems to be leaking a little bit.. and do either of the other two cords do anything? The guy at Auto Zone just told me to cap them.
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Capping the hole in the air filter assembly is fine but do not cap the line coming off of the head with the pcv valve.
You need one valve cover with a breather cap (drivers side) and the other valve cover should have a pcv valve in it with a line coming off of it and running to the back of the carb..
When you get to the back of the carb you use a plastic "T" and run one end of it into the back of the carb and the other end to the small plastic junction box with all of the other vac. lines connected to it.
If you are lost let me know and I take a pic. of mine.
Damn Porsche people need to stick with there own air cooled furry !
You need one valve cover with a breather cap (drivers side) and the other valve cover should have a pcv valve in it with a line coming off of it and running to the back of the carb..
When you get to the back of the carb you use a plastic "T" and run one end of it into the back of the carb and the other end to the small plastic junction box with all of the other vac. lines connected to it.
If you are lost let me know and I take a pic. of mine.
Damn Porsche people need to stick with there own air cooled furry !
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Ya, Im Lost.. my PCV Valve line, runs from the front right Valve Cover to like the upper right side of my carb., not the back, maybe I have it wrong :o I dont know, take a pic for me.. My hoses are all messed up, the dude that sold me the car must have been a complete car dumbass 
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Originally posted by "FordMan"
Damn Porsche people need to stick with there own air cooled furry !
Damn Porsche people need to stick with there own air cooled furry !
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I took it over to blue oval, they explained it to me. I need to get a Valve Cover Breather Filter, and I DID cap the rest of the hoses correctly. I get my new Shocks and Struts January 2nd, yay! 
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With the exception of environmental concerns (such as releasing unburned hydrocarbons directly int the atmosphere) would you like to give me a good reason why you would like to run your blow by gasses back into the intake mix?
While there is an argument for ventilating the crankcase to reduce oil contaminiation, I guarantee you that XpcorpC's blowby gasses far exceed the flow that can be generated by his PCV valve. Unleaded gasoline is also less of an oil contaminant than leaded (which is one of the reasons for longer oil change periods on cars nowadays).
PCV valves also flow almost no gasses during normal cruise operation anyways, but the breather system in the air cleaner guarantees that blow by gasses will still be added to your intake mix, reducing the power that can be generated per CFM.
Thats the reason why I say ditch the PCV valves and just put some breathers on your valve covers. Perhaps FM has an argument to convince XpcorpC otherwise.
While he is at it perhaps FM can convince XpcorpC to keep his vapor canister if it goes bad.
While there is an argument for ventilating the crankcase to reduce oil contaminiation, I guarantee you that XpcorpC's blowby gasses far exceed the flow that can be generated by his PCV valve. Unleaded gasoline is also less of an oil contaminant than leaded (which is one of the reasons for longer oil change periods on cars nowadays).
PCV valves also flow almost no gasses during normal cruise operation anyways, but the breather system in the air cleaner guarantees that blow by gasses will still be added to your intake mix, reducing the power that can be generated per CFM.
Thats the reason why I say ditch the PCV valves and just put some breathers on your valve covers. Perhaps FM has an argument to convince XpcorpC otherwise.
While he is at it perhaps FM can convince XpcorpC to keep his vapor canister if it goes bad.
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Interesting that you put a quick blurb in there about crankcase vetilation. Were you afraid of eating your words ?
Well since I am bored here is my understanding.
PCV is effective as both a crankcase ventilation system and as a pollution control device.
Here is a quick statement from a old FoMoCo manual:
"The most critical instrument in the PCV system is the flow control valve, commonly and heretofore referred to as the PCV Valve. The purpose of the valve is to meter the flow of the vapor from the crankcase to the intake manifold. This is necessary in order to provide proper ventilation for the crankcase, while not upsetting the fuel/air mixture for combustion.
Blow-by gases and vapor should be removed at about the same rate they enter the crankcase. Since blow-by is nominal at idle and increases during high-speed operation the PCV valve must control the flow of vapor accordingly. The PCV valve is designed to compensate for the ventilation needs at varying engine speeds. It is operated by manifold vacuum, which increases or decreases as engine speeds change.
For example, at low or idle engine speeds manifold vacuum is high.
This pulls the plunger to the extreme forward position, or manifold end of the valve. Due to the shape of the plunger vapor flow is reduced to a minimum. The low rate of the flow is adequate for ventilation purposes and will not upset the fuel/air mixture ratio.
At high speeds manifold vacuum is decreased. The plunger is only drawn to a point about midway in the housing. This allows a maximum flow of vapor., Since the engine is using more fuel/air mixture at high speeds, the introduction of more vapor does not affect performance. In the event of a backfire, pressure from the intake manifold forces the plunger to the closed or engine-off position. This prevents the backfire flame from reaching the crankcase and exploding the combustible vapor. "
Now that's funny, I think this means the PCV is used for more than pollution concerns.
Well since I am bored here is my understanding.
PCV is effective as both a crankcase ventilation system and as a pollution control device.
Here is a quick statement from a old FoMoCo manual:
"The most critical instrument in the PCV system is the flow control valve, commonly and heretofore referred to as the PCV Valve. The purpose of the valve is to meter the flow of the vapor from the crankcase to the intake manifold. This is necessary in order to provide proper ventilation for the crankcase, while not upsetting the fuel/air mixture for combustion.
Blow-by gases and vapor should be removed at about the same rate they enter the crankcase. Since blow-by is nominal at idle and increases during high-speed operation the PCV valve must control the flow of vapor accordingly. The PCV valve is designed to compensate for the ventilation needs at varying engine speeds. It is operated by manifold vacuum, which increases or decreases as engine speeds change.
For example, at low or idle engine speeds manifold vacuum is high.
This pulls the plunger to the extreme forward position, or manifold end of the valve. Due to the shape of the plunger vapor flow is reduced to a minimum. The low rate of the flow is adequate for ventilation purposes and will not upset the fuel/air mixture ratio.
At high speeds manifold vacuum is decreased. The plunger is only drawn to a point about midway in the housing. This allows a maximum flow of vapor., Since the engine is using more fuel/air mixture at high speeds, the introduction of more vapor does not affect performance. In the event of a backfire, pressure from the intake manifold forces the plunger to the closed or engine-off position. This prevents the backfire flame from reaching the crankcase and exploding the combustible vapor. "
Now that's funny, I think this means the PCV is used for more than pollution concerns.
