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Thread: Looking for PCV valve - Any Engine pics available? Reply to Thread
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Topic Review (Newest First)
01-27-2015 12:56 PM
1turbofocus Sure it can be replaced , every part on the car can be replaced , you rarely ever have to change the PCV tho

Take it out and check it , wash it out and if you can suck on it and it opens and blow on the other end and its closed stick it back in

01-27-2015 12:12 PM
Tiger-Heli Can't anyone just tell me if the D@mn valve can be replaced without replacing the entire oil-air separator and if there is a recommended interval for replacing it, instead of arguing the merits of running or not running the engine with the valve removed?
01-27-2015 09:48 AM
1turbofocus If you dont like the thought of removing the PCV then please dont do it , if you dont want the oil getting into your intake then you dont have a choice but to alter it

In the end its your choice and I choose to

01-27-2015 01:33 AM
wavsine The comparison of coal to removing automobile pollution control devices reminds me of the bank robber who is caught and complains that Wall Street corruption is stealing far more than he is.

There are kids in this forum who innocently mod their cars without much thought to the effect on pollution. However, I must question the wisdom of a for profit company openly bragging about defeating federally mandated emission control devices in a public forum.
01-26-2015 01:30 PM
1turbofocus All vehicles that idle can build sludge the PCV system didnt cure this issue

For those that are tree hungers did you know that there are 600 coal plants burning in the US that put off more pollution/emissions in 1 hr then all all the cars in the world in 1 year , where is the tree hugers there , where is the EPA , where was the EPA when the scrubbers in a NC coal plant dumped TONS or by product into my lake and damaged it for centuries

Here is some lite reading
A Case Study: The Side Effects of a Coal Plant

A 500 megawatt coal plant produces 3.5 billion kilowatt-hours per year, enough to power a city of about 140,000 people. It burns 1,430,000 tons of coal, uses 2.2 billion gallons of water and 146,000 tons of limestone.

It also puts out, each year:

10,000 tons of sulfur dioxide. Sulfur dioxide (SOx) is the main cause of acid rain, which damages forests, lakes and buildings.
10,200 tons of nitrogen oxide. Nitrogen oxide (NOx) is a major cause of smog, and also a cause of acid rain.
3.7 million tons of carbon dioxide. Carbon dioxide (CO2) is the main greenhouse gas, and is the leading cause of global warming. There are no regulations limiting carbon dioxide emissions in the U.S.
500 tons of small particles. Small particulates are a health hazard, causing lung damage. Particulates smaller than 10 microns are not regulated, but may be soon.
220 tons of hydrocarbons. Fossil fuels are made of hydrocarbons; when they don't burn completely, they are released into the air. They are a cause of smog.
720 tons of carbon monoxide. Carbon monoxide (CO) is a poisonous gas and contributor to global warming.
125,000 tons of ash and 193,000 tons of sludge from the smokestack scrubber. A scrubber uses powdered limestone and water to remove pollution from the plant's exhaust. Instead of going into the air, the pollution goes into a landfill or into products like concrete and drywall. This ash and sludge consists of coal ash, limestone, and many pollutants, such as toxic metals like lead and mercury.
225 pounds of arsenic, 114 pounds of lead, 4 pounds of cadmium, and many other toxic heavy metals. Mercury emissions from coal plants are suspected of contaminating lakes and rivers in northern and northeast states and Canada. In Wisconsin alone, more than 200 lakes and rivers are contaminated with mercury. Health officials warn against eating fish caught in these waters, since mercury can cause birth defects, brain damage and other ailments. Acid rain also causes mercury poisoning by leaching mercury from rocks and making it available in a form that can be taken up by organisms.
Trace elements of uranium. All but 16 of the 92 naturally occurring elements have been detected in coal, mostly as trace elements below 0.1 percent (1,000 parts per million, or ppm). A study by DOE's Oak Ridge National Lab found that radioactive emissions from coal combustion are greater than those from nuclear power production.

The 2.2 billion gallons of water it uses for cooling is raised 16 degrees F on average before being discharged into a lake or river. By warming the water year-round it changes the habitat of that body of water.

Now do that times 600 in the US +/- in size of KW output, then come talk to me about taking a few PCV systems loose which in the end would fill with enough oil to start smoking

01-26-2015 12:46 PM
Originally Posted by 1turbofocus View Post
The big reason engines dont have "road breathers" any longer is because of the oil , water that come out of then and got on the roads and Hwy ways , the air that comes out does very little harm
You have obviously never worked in EPA compliance testing for that is incorrect. The unburnt hydrocarbons discharged from the road draft tube were a huge contributor to air pollution. In addition, the draft tube depended on air flow under the vehicle to function. Vehicles that idled extensively in traffic often suffered from sludge buildup.
01-17-2015 12:32 PM
Tiger-Heli Thread got somewhat off-track ...

Back on topic -

The Helm manual shows a PCV valve on the oil-air separator as part of the assembly, but no details on it.

Helm image does look to me like the valve in this thread:

  • 2002 Focus Maintenance Interval called for the PCV valve to be replaced every 100K miles. I didn't see that for the Gen III, but is it still the same interval, or longer, or shorter?
  • At this point, does anyone know if the valve can be replaced separately, or does the oil/air separator have to be replaced?
  • Is it possible to replace the valve from underneath the car without removing the intake manifold, or does the manifold need to be removed?

Thanks in advance!!!
04-19-2014 02:11 PM
ProjectCommuter My concern is marginal. I don't believe the evidence available for the Audi/VW-Mini issue applies to the focus simply because it's direct injected as well. I think that a lot of this talk is a waste until there is evidence for concern, supported by proof, regarding our engines specifically. I would love to see the pics. I have searched all over and have not found any yet. And, there are a lot of these engines running about with a lot more miles than my 40K. I am not stating there is or is not a problem, just that if it was a problem there should be some documentation of it by now.
04-19-2014 01:41 PM
Kjanracing My thoughts and opinions....
I do have a borescope and have looked at what it would take to actually get the camera to the intake valves. Looks like it may be easier to just pull the intake manifold to look. Just because my engine or another engine has deposits,or not, doesn't mean YOURS does or not. I think a lot of factors play a role in making deposits. Direct Injection has been around for a while now, and I would hope the manufacturers are addressing the issue. So it may be too early to tell. There is also the question of how much deposits can be on the valves before you notice a difference in performance. I only have 6000 miles on my car, so I'm not concerned at this point. If you are, maybe look into pulling the intake manifold back and see what your engine has.
04-19-2014 12:13 PM
ProjectCommuter The Audi/VW, Mini issue is well documented and a severe problem. So, I ask again. Does anyone have actual photos of THESE engines with carbon buildup? I have heard that it will buildup or does buildup. I want to see proof. There are plenty of these engines driving around. Can we get a photo or two? Anyone who has pulled one apart have pics? Anyone have boroscope pics? Anyone?
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