Does anyone run a charcoal vapor canister?

Steve - I removed the charcoal canister and plumbed the line into the air cleaner which is also connected to the valve cover breather (not the PCV)

You could also probably just plug the vent hole and just use a vented cap.  

Does a vented cap let air/vapor in and out?

@panterapatt posted:

I removed the charcoal canister and plumbed the line into the air cleaner which is also connected to the valve cover breather (not the PCV)

8 stack engines usually have both valve covers plumbed to an oil separator/breather since there is no shared plenum with vacuum for a PCV.  The oil separator is probably not a good option for the vent tube.

I run one and it’s vented to the atmosphere. You can actually make your own canister, it’s very simple.

Can you smell fuel around the gas cap when the car has sitting for a while?  What did you do with tank vent outlet?

No smell whatsoever. The tank vent     outlet is connected to the Canister, the Canister is vented to the atmosphere, that’s it.

Sorry Steve, I forgot to mention that I have a fuel cell in my car. Does your tank vent outlet have a valve in it or is it open? If it does have a valve it should be okay, as long as it vents to atmosphere.

https://m.youtube.com/watch?v=pl7aM7SNq4Y

cool video!!

My car has the factory tank and vent.  There is no hose on the vent yet.  I have the engine bay 1/4 window glass out at this time and you can smell fuel vapors at the window opening.

Then I would simply connect a hose to it and be done.  There are lots of vapors that come out of the open hole in your tank

@hightech posted:

https://m.youtube.com/watch?v=pl7aM7SNq4Y

Clever video.  I see he has the same paint booth setup as me.

I ran my breather hose all the way to the back of the car And attached a fuel filter on the end… I installed the grill over the holes, which were originally for the L bumper, and on the left side, the vent tube right behind it on the right side, the coolant overflow.

because fuel vapor is heavier than air and made a trap like you have in a toilet… A low point where it can collect in and it goes up again..

well, I don’t have any smell..👃

Steve, I am going to use an old fuel filter and fill it with a carbon filter, basically the same thing as the PVC one in the video.  If you want to go a more professional route, take a look at www.vaportrapper.com

FWIW, I deleted the stock charcoal cannister when it fell apart inside. They only have about a 10 yr lifespan, but any Ford cannister '67-up duplicates it. I ran the hose from the tank vent directly to the air cleaner, using a small NAPA foam filter inside the cleaner body. The filter also acts as an anti-backfire device for those cold morning starts. No fumes at all, but of course I'm running a Holley carb.

I also replaced the stock fuel tank vent with one Gary Hall used to sell that is also a bolt-on anti-rollover valve, and it's hose bib is smaller than the stocker's so I needed to change hose size anyway. The anti-rollover valve was another DOT safety mandate for '82(?) and up U.S. passenger cars & pickup trucks.

Gary used a stock '80s Ford vent/valve with a ring-adapter to allow bolting it onto a stock Pantera fuel tank. Once you drill out the stock valve's pop-rivets, you find the tank boss holes are metric threaded. DeTomaso listed an anti-rollover vent/valve for wide-body Panteras, but it was large, in four pieces and 40 years ago the parts sold for $300! Hall's compact legal plastic valve sold for $29.

I am using a small canister and have it vented into the air cleaner. It did help to reduce the smell of fuel in the garage.

Thank you all.  This has been very helpful.  I will probably run a line to a fuel filter and let it vent to the atmosphere.  Hopefully it will contain the fuel vapors adequately.  If not then I will try something with charcoal.

I am running the same "roll over vent" that BW is. I just have it venting to the atmosphere as is and don't smell any fumes from it. Just those from the exhausts. Not to mention the smell of melted rubber from the tires.

I think that if the car is stinking up the garage with gas smells, there are larger problems then that?

Why can only the wife smell it and not you? Don't answer that. It is a leading question.

I have to focus to smell the fuel vapors.  It's not very strong.  Wife doesn't notice it.  However, some visitors are sensitive to it.

Yup

I ran a hose direct from the vent in my 72 pre-L out to the atmosphere with no filter.  I never really smelled fuel unless I filled the tank really full.

However, I was running a Holley carb at that time.

I'm switching to EFI, sniper 2, while the engine is getting sleeved so will be curious if I get the smells with the new system.  I'm using an external fuel pump with a return line so will be different for my 2.0 project.

JW

It should be eve less with the EFI

Are you sure it is from the tank vent? I had a similar odor in the garage, then realized it was only when tank was near full, turned out the tank had rubbed through and weakened with a hairline crack where it meets the fender.

It looks like the vent is the source.  I have had a hose on the vent for a couple of days and no more smell at the engine bay window, but definitely a smell at the end of the hose.  I don't have a fuel on the end of the hose yet.  

When the tank was out, I filled it with water and checked for leaks.  However, it's no guarantee that the tank does not have a pin hole or crack somewhere.  It only has about three gallons of gas in it at the moment.

On many cars, a fuel smell is from a crack in the coupling hose from the outside filler to the tank on '73-up models. And for reasons that escape me, the crack is nearly always on the hose's bottom where its harder to see. Some of that hose cracking comes from people using radiator hose instead of fuel proof hose in that position while others are from simple age Might be worth a close look.

Thanks Jack.  This car came with a cracked coupling hose, as you described.  I replaced it with a coupling for fuel tanks from Summit Racing.