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CAR LEACKING GAS AFTER INSTALL PLZ HELP!

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Old 06-21-2012, 02:18 PM
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CAR LEACKING GAS AFTER INSTALL PLZ HELP!

So today i went to the junkyard and got a q-jet fo anothr car, and put it into my car, after a i started it it seemed good, it was just idleing really high and then after about 10 seconds gas starts to our out of this hole, i dont kow what this leads to or goes to, please help...

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Old 06-21-2012, 04:37 PM
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Re: CAR LEACKING GAS AFTER INSTALL PLZ HELP!

That is a vacuum source for your PCV. You have a massive vacuum leak as it is causing your problems.

There should be a metal 'nipple' that comes through that hole. The one on my quadrajet is loose and I can actually pull it out. Your best bet is to find that 'nipple' and cap it off with a vacuum plug.
Old 06-21-2012, 05:08 PM
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Re: CAR LEACKING GAS AFTER INSTALL PLZ HELP!

That's not a "vacuum source"; it's the vent above the fuel bowl, that's supposed to go to the canister system. But yes, a sort of thin sheet-metal hose nipple is supposed to be there, just like your old carb. And no, capping it off is not the answer; seeing as how you're in California, it needs to be installed, connected, and operating.

Since you're in San Marcos, I'd suggest going to the U-pull-it up on 76 in Oceanside, right across from the little airport; and gank one off of some other carb. There should be lots of em. When I lived in Carlsbad that's where I always went for stuff like that.

But a more immediate concern, is that the fuel level isn't supposed to be high enough to reach that hole at all. That carb is not in any better shape, most likely, than the one you took off. I'd suggest rebuilding the one that belongs on your car.
Old 06-21-2012, 11:25 PM
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Re: CAR LEACKING GAS AFTER INSTALL PLZ HELP!

thanks!so do you think I should just put my old one back on??and just correct the vaccum?
Old 06-21-2012, 11:26 PM
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Re: CAR LEACKING GAS AFTER INSTALL PLZ HELP!

so what would happen if I were to connect the vacuum correctly and gas starts going into the caniter?would it be bad?what woudl happen?
Old 06-21-2012, 11:28 PM
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Re: CAR LEACKING GAS AFTER INSTALL PLZ HELP!

and any reason as to why the carb might be doing that?
Old 06-22-2012, 05:30 AM
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Re: CAR LEACKING GAS AFTER INSTALL PLZ HELP!

do you think I should just put my old one back on??
Probably so; after rebuilding it.

and just correct the vaccum?
It's not "vacuum", but yes, hook it back up right, regardless

what would happen if I were to connect the vacuum correctly and gas starts going into the caniter?
Again, not "vacuum"; but fuel will soak the canister and start dripping out of your fender. Not particularly desirable.

any reason as to why the carb might be doing that?
Yeah; it's messed up. The float and the needle valve it controls, isn't shutting off the flow of fuel from the pump when the fuel bowl in the carb gets full. It needs a rebuild as well. Which is why, since both carbs need to be rebuilt, might as well repair the one that belongs on the car, and write off whatever money you spent on the other, as the cost of a lesson.

That piece of rubber fuel line over there is an engine fire waiting to happen, as anyone who has ever had such a piece to burst and spew fuel everywhere and watched their car burn to the ground can tell you. It'd be a good idea to replace the entire metal line with a new piece of metal line while you're taking care of the carb.
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