Thread: Engine Swap - '92 5.0EFI/AOD into '66 Ford F100....

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Originally Posted by randyr

Currently, I have the line from the fuel tank to the canister attached. The other hose that usually goes to the purge control valve is just open for venting purposes. Is that a problem?

Randy,
No, I think with what you have now the canister will block any fumes from the tank vent, but it's capturing the vented fuel, absorbing the volatiles, and not burning anything. You're handling the aroma, but not fulfilling the intent of the canister according to the design - that means per the EPA. I wouldn't worry with it unless you're feeling particularly "green" about it.
The valve lineup I described sounds difficult, but it's really just some vacuum hoses and should work pretty slick assuming one can source a pair of three way VCV's, which I think are readily available. Maybe if I sketch it out, scan the sketch and post the diagram.....

Originally Posted by rspears

Randy,
No, I think with what you have now the canister will block any fumes from the tank vent, but it's capturing the vented fuel, absorbing the volatiles, and not burning anything. You're handling the aroma, but not fulfilling the intent of the canister according to the design - that means per the EPA. I wouldn't worry with it unless you're feeling particularly "green" about it.
The valve lineup I described sounds difficult, but it's really just some vacuum hoses and should work pretty slick assuming one can source a pair of three way VCV's, which I think are readily available. Maybe if I sketch it out, scan the sketch and post the diagram.....

Thanks, Roger! It's not about feeling overly "green" and I have plenty of opinions about the EPA, none of which are flattering to them but if hooking this thing up properly lets me milk a tiny bit more from a gallon of gas rather than evaporating into the air, then it's doing its job. So far, I've only smelled fuel from the canister once and that was after I just shut off the engine & lifted the hood.

I'm a little confused on the 3way vs 1way VCV's you're talking about. Please don't spend a lot of time sketching/scanning a diagram though! You've got a car to paint!!!