1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

BIG PROBLEM carburator issue

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Old Mar 13, 2005 | 08:51 PM
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edwin-82/rx7's Avatar
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BIG PROBLEM carburator issue

first off my car is an 82. soo... i put my "rebuilt" (apparently i'm not that good at it) carby on and connected all the lines, except for what i think is the hot start assist fluid delivery line becuase i couldn't find where it went. that could be the issue anyways. so i put some fuel in the tank and turned the ignition on to fill the float bowls, and after a second the gas didn't stop and basically filled the carb. i thought the gas would stop when the float bowls filled up, but wtf??? is there a vaccum problem, like is it just sucking gas through for some reason? please help me!!!!
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Old Mar 13, 2005 | 09:02 PM
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are you sure you set the float level per the instructions? no need to remove the carb from th intake, just pull the top back off and check it, also make sure you put the thing in that hooks to the float that moves up and actually cuts the fuel off.
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Old Mar 13, 2005 | 09:07 PM
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edwin-82/rx7's Avatar
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yeah i had JUST reset the float levels with a micrometer. one of my friends thinks its some vacuum/siphoning dealy going on. i don't know...
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Old Mar 13, 2005 | 09:33 PM
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From: Fergus Ontario
i just had a similar problem, mine wasn't that bad though, it stopped after i had it running for a bit, i don't know where the thread is now, but a previous thread mentioned that the new needle and seat that come with the rebuild kit have a matte finish on them, once that finish has worn away they will seal.
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Old Mar 14, 2005 | 09:17 AM
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so should i just keep on letting it flood untill the gas stops? i'm sure that i got everything back in the correct place, i put it back together with the manual by my side. should gas sitting in it take off that matt finish quickly? it ran really shitty for about 5 seconds and then i couldn't start it anymore b/c the batt died. also it smelled a bit electrical in the engine bay after i tried to get it running. thanks for all the help.
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Old Mar 14, 2005 | 10:55 AM
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From: Fergus Ontario
if you can get it running, then just let it run till it reaches operating temp, if it still flooding in after that, then i'd pull the top off the carb, and recheck that you have everything in the right way, another thing is check the one way valve in the return line, its the little metal bullet thing spliced in about 4 or 5" back from the carb on the line.

Last edited by tempusfugitive; Mar 14, 2005 at 10:59 AM.
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Old Mar 14, 2005 | 12:37 PM
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Take the top hat off and make sure the float pins aren't stuck on something. The reason it's filling up with gas is because the floats aren't working properly. Take the hat off, and push the floats. If they move, make sure nothing binds when the hat is secured. Usually when one of my carbs does that just taking the hat off and putting it back on will cure whatever it was that was wrong.
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Old Mar 14, 2005 | 01:17 PM
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i'm going back out there tonight to give it another go. thanks everyone for all the help and tips!
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Old Mar 14, 2005 | 11:14 PM
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I don't think i could be happier! Apparently letting the carb sit overnight with gas in it wears off the finish just fine. I tapped over the needles and seats a couple times, hooked the cables up to my truck to jump it, and it started on the first turn! ran like **** for a little while but smoothed out. got her all warmed up and took it for a spin around the lot (not enough room) and so far the mech. secondaries feel great. i had some horrible white smoke coming out of the tailpipe for about 10 minutes untill it warmed up, but it didn't smell sweet like coolant. after i opened it up the smoke dissapeared and didn't come back even when i started it again when it was hot. so hopefully all is well, now i just have to wait for this damn snow to melt. thanks again to everyone who provided input!
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