Forget the diagram I sent you with the bladder, its a hybrid. Regardless, if the intake purges the fumes you have to have a vent. On my car that valve is in the air cleaner and brings fresh air thru the evap system. All smokers pressurize the evap system.
read the manual I attached.
Also watch...
Ok that PDF is for a hybrid, hence the bladder. Depending on the purge conditions they may not go thru the tank, just the canister, what is your point?
Thats a generic diagram, hence where you are getting the term bladder but if you look at page 3-13 do you see where fresh air is coming in thru the tank and out thru the intake. My car has the CCV in another place. Different manufactures call it different things. Regardless, its fresh air into...
The CCV is normally open, ie car off, it vents to air. Car started it closes and creates a vacuum in the system. When the system purges it needs to open to release the vacuum, like the vent on your gas can or pool chlorine jug.
Quick education:
http://www.autoshop101.com/forms/Hybrid13.pdf
I...
In a round about way yes. They want to use nitrogen (some manufaturers). 1st Air is 78% nitrogen 2. if you are buring mineral oil to get smoke you must need air for combustion 3. Gas and air are mixed together in an auto fuel system via the CCV all the time.
The original question pertains to the emission control system. The closed Canister Valve is part of that system along with fuel and fuel vapors. When you put a smoke tester into the CCV valve or anywhere in the emission system..... then open the FUEL tank cap, what do you think will come out?
I wonder if you could close the purge valves and let the car pull a vacuum on the emission system then monitor it with a vacuum gauge. Seems simple and safe.
That is an interesting thread. Still with the use of nitrogen you have to air somewhere in the system to create the smoke, an element to ignite the mineral oil(which to me is the actual danger). Asphyxiation in a ventilated shop environment would never happen. If you were in the car with the...
Matt, I emailed those companies and they have not replied. Guess they dont want to be locked into that question. The emission system is (fuel system) has air and fumes all the time. When it purges it introduces AIR into the system. Any ignition source, smoker or not will create a bomb. Emission...
"air and gasoline vapors can form an explosive mixture"....Really? I guess that was the day I slept in my college chemistry glass. "Air" is not only in an auto fuel system but fresh air is introduced via the purge valve not to mention the fuel cap and fuel changes. I have a coleman lantern that...
I posted a question over in the auto fuel section but would like to know from the Chemical Engineers exactly what problems (if any) arise when intoducing air to gasoline vapors. The companies that make these testers have a warning against using air but I dont see the problem especially since all...
