Fuel Vapor Canister : Do I need this? Show me what you did (pics please)

[jakester888]

I'm running a 5.0 EFI from a 93 donor.

The vent line from the fuel tank is connected to nothing. Do I need a Fuel Vapor Canister with a vacuum line to it or can I just put the equivalent of a fuel filter at the end of the vent line?

What did you guys do? Thanks.

[MPTech]

I'm running a '93 EFI with no fuel vapor canister.
No downside that I'm aware of.
No fuel smell in the garage.
I ran a 3 foot fuel line to the vent and put a loop in it so it wouldn't splash out or get humidity in the tank.

I can add one if someone identifies a good reason here, but I haven't experienced any yet.
YMMV

[smithbks]

I have a vent in the straight axle tube that the manual recommends running the fuel tank hose up and then down to. Has anyone else done this?

[edwardb]

On my Mk3 build, I have the fuel tank vented into a standard Mustang OEM vapor canister without the purge valve circuitry. It's just the end of the vented line. I've never had a fuel smell in my garage for 3+ years. For my Mk4 build, just yesterday I installed the fuel cap to the body and filler and tie-wrapped the 1/2 inch vent line to the side of the filler open just below the cap under the body. Until now both had been sealed with plastic baggies. So the vent line is open to the atmosphere. There is 4-5 gallons of fuel in the tank. I'm planning to put a homemade charcoal filter on the end, but so far no fuel smells. Will continue to monitor.

[rich grsc]

I have a vent in the straight axle tube that the manual recommends running the fuel tank hose up and then down to. Has anyone else done this?

I think you may have miss read something, or I don't understand your meaning, but you would NEVER connect the fuel tank vent to the axle vent

[smithbks]

This is what is says in the manual with a picture of exactly the same: "If using the FFR rear axle, attach the ¼” rubber fuel line to the vent tube on the rear axle or center
section. Tie the top of the tube up high under the trunk allowing room for the axle to move." 32450

[cgundermann]

3245232451
I made one out of PVC pipe and fitted it inside with pantyhose filled with aquarium charcoal. My wife is hypersensitive to fumes and this worked great.

[billjr212]

Smith - if you look closely, that vent line is going forward from the axle to open air (though you can't see the end), not rearwards to the fuel tank. FFR is simply saying to use a piece of fuel line as a lead from the axle vent to open air, not from axle vent to fuel vent. Hopefully that helps clear that up for you.

[billjr212]

Nicely done with the PVC pipe. I'm thinking of going with something similar for my 818 (after I delete the mess of sensors associated with the charcoal canister on that donor)

[skullandbones]

Here is what I did to get rid of my ugly OEM canister.

FFR Side Louvers improvement and other small tweeks (http://thefactoryfiveforum.com/showthread.php?10615-FFR-Side-Louvers-improvement-and-other-small-tweeks)

See post #33. Hope that helps.

[Jeff Kleiner]

This is what is says in the manual with a picture of exactly the same: "If using the FFR rear axle, attach the ¼” rubber fuel line to the vent tube on the rear axle or center
section. Tie the top of the tube up high under the trunk allowing room for the axle to move." 32450

You don't run the fuel tank vent hose to the axle vent!!!! :rolleyes: You are to connect one end of a SECTION of 1/4" fuel line to the vent tube and leave the other end open allowing it to vent the axle housing to the atmosphere. Although, venting the tank to a sealed axle housing might be interesting/amusing/exciting/video worthy...

Jeff

[casopko]

I used the big bore vent/check valve from Breeze, looped the tubing around as instructed. Have never noticed any smells. My original problem was it took forever to fill the tank, kept shutting off the gas nozzle. Now I can run the nozzle wide open. Not cheap but does what it's supposed to do and heaven forbid if you end up wrong side up it will stop the fuel from coming out of the tank.
Chuck

http://www.breezeautomotive.com/details.php?prod_id=785

[smithbks]

Thanks guys. I have been struggling with this since I read (misread) it in the manual. Thankfully I hadn't done it yet and I kept searching the internet for more articles. I will say (rather sheepishly) that I was going to do it, and I'm glad you guys saved me from making videos for Jeff!

[jakester888]

Based on what I'm hearing, I plan to just use a longer fuel line, make a loop and point the end downward but connected to nothing.