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| Removing the evap canister (Page 1/4) |
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trotterlg
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AUG 10, 10:39 PM
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If I pull the evap canister out what should I do with the hose from the fuel tank (plug it, leave it open)? I can put on a vented gas cap. Larry
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sco77
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AUG 10, 11:03 PM
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Vent it with a breather and put it in the wheel well near the gas filler (mostly to keep stuff out, it wont stop any odors). ------------------
86 Fiero GT 4spd - L67 swap: VS cam, GenV. Needs exhaust (ETA 9/13) Build Progress
98 GTP - Some mods
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trotterlg
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AUG 10, 11:42 PM
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That should be easy, thanks.
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Patrick
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AUG 11, 02:01 AM
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| quote | Originally posted by trotterlg:
If I pull the evap canister out ...
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I'm curious - What's the benefit of doing that?
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fierosound
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AUG 11, 09:17 AM
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Joseph Upson
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AUG 11, 09:54 AM
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| quote | Originally posted by trotterlg:
If I pull the evap canister out what should I do with the hose from the fuel tank (plug it, leave it open)? I can put on a vented gas cap. Larry |
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Don't do it!
On hot days after the fuel in the tank is adequately warmed up after driving for a while, fuel vapors will build up in the tube to the point of raw fuel dropping on the ground when you park and the elevated location of the line in the stock location beneath the deck lid will not stop it. I discovered this after failing to reinstall the canister after an engine swap.
Don't even think about capping it either because my first brush with the line in question is when it got clogged and caused the fuel tank to swell and make crumpling noises under the same conditions, not to mention the whoosh of fumes from the pressure build up in the tank when you remove the cap.
Leave it be and save yourself the hassle.
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trotterlg
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AUG 11, 11:43 AM
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I am doing an engine swap to a carbed engine, so lots of stuff can come out of the engine compartment. If this can come out too it would be nice. Don't need it for emissions, What did old cars do before they had them? Larry
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FIEROFLYER
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AUG 11, 11:55 AM
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Charcoal canister is not really engine related so you should still use it even with a carbed engine. If you find it ugly move it some where less visible. Dan
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trotterlg
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AUG 11, 11:59 AM
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I can leave it, what do I do with the two vacuum lines that hook into the top? Larry
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Joseph Upson
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AUG 11, 12:06 PM
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| quote | Originally posted by trotterlg:
I can leave it, what do I do with the two vacuum lines that hook into the top? Larry |
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Theoretically it should contribute to better fuel economy by redirecting fuel vapor to the engine for consumption as opposed to venting to the open air. A vent tube is a necessity on any gasoline tank, but as mentioned regarding the fuel vapor's ability to pool into liquid form as it is vented from the tank, it is best to have that vapor escape into the engine where it can be burned and the evap canister helps in this process. Look at the vacuum tube diagram for an appropriate method of connecting it to the carb intake system.
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