60 series fuel tank venting HELP ????

[cvdesertrat]

Help... anyone on here figure out how to vent the tank with the stock venting contraption removed, I did a complete fuel injection sys so I removed everything stock. I connected the large tube hose to the neck like Toyota had it, vented cap. I can only get 2/3rds of a tank when I try to fill up, seems like it is trapping air in top of tank

 

[Elbert]

Is there not a vent hose running up to the firewall (via hardline at the firewall) and which went to the charcoal canister. you can't cap that off or plug it. I don't recall if that ran directly from the tank or through the plastic vent thing in the driver side rear quarter... Hard line tube at the firewall...rubber hose to the charcoal canister... this line has to be vented in some manner based on my experience.

 

[Devils Paw 80]

Why would you remove all the stock stuff for fuel injection? FJ62 is EFI and uses the same venting system as the carbed FJ60.

 

[cvdesertrat]

ALL EMMISSIONS IS GONE, no canister, I did a GM throttle body computer controlled spark fuel injection

 

[cvdesertrat]

Is there not a vent hose running up to the firewall (via hardline at the firewall) and which went to the charcoal canister. you can't cap that off or plug it. I don't recall if that ran directly from the tank or through the plastic vent thing in the driver side rear quarter... Hard line tube at the firewall...rubber hose to the charcoal canister... this line has to be vented in some manner based on my experience.

Is there not a vent hose running up to the firewall (via hardline at the firewall) and which went to the charcoal canister. you can't cap that off or plug it. I don't recall if that ran directly from the tank or through the plastic vent thing in the driver side rear quarter... Hard line tube at the firewall...rubber hose to the charcoal canister... this line has to be vented in some manner based on my experience.

All that stuff is gone, not needed with the system I put on...no emmissions testing here

 

[cvdesertrat]

Why would you remove all the stock stuff for fuel injection? FJ62 is EFI and uses the same venting system as the carbed FJ60.

All emmissions is gone, did a non Toyota system and no emmissions testing here

 

[cvdesertrat]

I got it, looks like I have to tie the vent hoses together, there are 4 for the 2 upper chambers in the tank, the large one vents the filler neck

 

[mep1811]

With my V8 conversion, I ran the vent hose to the engine compartment fender well. At first, I ran it to the firewall but the fumes were getting into the passenger compartment.

 

[wngrog]

I thought that. Asked here before I removed it and was explained that the charcoal system is not about emissions. It’s about venting the tank.

I have TBI too. Put a Delco canister in. Easy. Needed.

 

[wngrog]

It needs vacuum to make it all work too. The damn thing will purge on you when hot without charcoal

 

[Elbert]

All that stuff is gone, not needed with the system I put on...no emmissions testing here

the emissions may be gone but that hard-line vent is still there....unless you expressly removed it from the firewall.

 

[Elbert]

Really its not good to just run the vent hose over the wheel well. I've done the same thing and while it works its not a good thing to do. When I was out in moab a couple of years ago with a group and we were going down some very steep descents....I had a fairly full fuel tank and had fuel come out the vent hose over in my front fender well. This was not a good thing at all. The fuel tank has to be vented, but you need to be careful how you do it. I'm going to get a roll-over valve installed on mine (vent hose) but event then its really not the best approach. I would like to find something that will pass vapor (vent) but not pass liquid (fuel).

 

[cvdesertrat]

the emissions may be gone but that hard-line vent is still there....unless you expressly removed it from the firewall.

yes I removed it when I replaced the rusty fuel lines with stainless line that I installed....I am installing a rollover vent in the back where it comes out of the separator

 

[maxbob002]

Just tying all the vent hoses together won’t fix the ventilation issue. The system needs to vent. Personally I would run a new line to the front and put a charcoal canister in, similar to the stock configuration. There’s a tbi port specifically for the charcoal canister that’s labeled ported vacuum on diagrams. Where will the rollover vent send fumes to?

 

[cvdesertrat]

Just tying all the vent hoses together won’t fix the ventilation issue. The system needs to vent. Personally I would run a new line to the front and put a charcoal canister in, similar to the stock configuration. There’s a tbi port specifically for the charcoal canister that’s labeled ported vacuum on diagrams. Where will the rollover vent send fumes to?

I reinstalled the fuel separator, which tied all the vent tubes together. The line that went to the engine compartment comeing out of top of the separator is open now at the tube plate, works fine, that's where the rollover vent will come from. Back before emissions there were no canisters, tanks were vented thru vented caps, all the canister does is trap and store the tank fumes and then release them to be burned...Emissions control device

 

[cruisermatt]

I reinstalled the fuel separator, which tied all the vent tubes together. The line that went to the engine compartment comeing out of top of the separator is open now at the tube plate, works fine, that's where the rollover vent will come from. Back before emissions there were no canisters, tanks were vented thru vented caps, all the canister does is trap and store the tank fumes and then release them to be burned...Emissions control device

I guess if you like gas fumes then go for it. The first four guys that told you didn't seem to convince you, so this is probably a waste of my time but maybe someone else will read this. Charcoal canisters are ACTUALLY good.

Don't ask for help and then reject everyone's advice.

 

[Beehanger]

I guess if you like gas fumes then go for it. The first four guys that told you didn't seem to convince you, so this is probably a waste of my time but maybe someone else will read this. Charcoal canisters are ACTUALLY good.

Don't ask for help and then reject everyone's advice.

hey matt,
resurfacing this thread. getting fumes in my 85' fj60 drivers cab, trying to fiugre out why this is. Is there a venting line that goes into the drivers cab area that I can reroute? Or, maybe its one of these reasons (i've alraedy replaced PCV valve out of the block and the c canister...)

Alternative explanations:
1.) I replaced the lower vent lines via your kit, and am wondering if I need to replace the upper ones.
2.) is there a check valve all the way in the fuel tank area that could be old and clogged or is this only for Fj40's? (see photo)\
3.) I've read guys have issues with the seperator sometimes getting clogged, has anyone seen this?

4.) Finally, I suppose it could be clogged somewhere all the way back in one of the metal lines going under the truck as the truck sat for a while before i bought it 3 years ago. If you have any ideas much appreciated, trying to car camp in this thing over the holidays and rather not have fumes haha.

Best,
Dan

 

[mattressking]

You need to read the emissiosn diagrams for charcoal canister. If all of your lines are connected correctly and unbroken from tank to separator, then you need to test your charcoal canister, vent control valve, VCVs and associated lines are routed correctly. Then come back.

Make sure all lines are clear,

 

[OSS]

Until you get it figured out—
Remove the gas cap and stuff a rag in the fill pipe and lock the access door.
That will eliminate any vapor pressure in the tank & lines and vent it outside.
My guess is your vapor separator behind left rear panel is still leaking and your charcoal canister check valve is stuck (unfixable).

 

[kirvesmies]

Until you get it figured out—
Remove the gas cap and stuff a rag in the fill pipe and lock the access door.
That will eliminate any vapor pressure in the tank & lines and vent it outside.
My guess is your vapor separator behind left rear panel is still leaking and your charcoal canister check valve is stuck (unfixable).

wouldn't that be passenger side rear panel? at least that's where it is in my '87