Fuel tank and lines (1 Viewer)

Joined
Jan 19, 2021
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Emigrant, MT 59027
First of all, sorry to b a bother w so many questions. My FJ is a Jan 1972, with a 350 chevy conversion. Because if the conversion, is a charcoal canister needed? Can't seem to find it. Have pulled the fuel tank and seems "wrong". First photo shows hose going nowhere, just capped off. Second shows hose looping back on itself.

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Joined
Jul 26, 2020
Messages
132
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WA, USA
The charcoal canister is under the hood, the capped ports are all vents going to the fuel separator, the big uncapped is the main vent for filling the tank. You don't have to run a charcoal if you don't mind some fumes now and again, If I didn't already have one I would run the OEM fuel separator and a 1/4" line running to the intake, I cant imagine it would suck raw fuel unless the truck was upside down.
 
Joined
Jan 19, 2021
Messages
64
Location
Emigrant, MT 59027
The charcoal canister is under the hood, the capped ports are all vents going to the fuel separator, the big uncapped is the main vent for filling the tank. You don't have to run a charcoal if you don't mind some fumes now and again, If I didn't already have one I would run the OEM fuel separator and a 1/4" line running to the intake, I cant imagine it would suck raw fuel unless the truck was upside down.
are you saying put in a separator but direct it back to the tank rather than sending it to the charcoal cannister?
 
Joined
Jul 26, 2020
Messages
132
Location
WA, USA
are you saying put in a separator but direct it back to the tank rather than sending it to the charcoal cannister?
Tank vent to fuel seperator to the intake. The later models with a charcoal canister have it plumbed the same way except there is a valve to evacuate the charcoal canister when its full of fumes.
 
Joined
Jan 19, 2021
Messages
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Location
Emigrant, MT 59027
Tank vent to fuel seperator to the intake. The later models with a charcoal canister have it plumbed the same way except there is a valve to evacuate the charcoal canister when its full of fumes.
wondering, does the fuel separator have a function other than merging the multiple vent hoses down to a single outlet source?
 
Joined
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Messages
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Location
WA, USA
Its primary function is to separate liquid fuel from the fuel vapors, which are then passed through a one way valve and off to the charcoal canister. Liquid fuel can reach the separator in high angle driving or perhaps an overfilled tank
 

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