Jeeps Canada - Jeep Forums - Carburetor woes

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I'm having trouble with my carburetor and know NOTHING about setting
up a carb so I was hoping to get some input from y'all on this. I
have a '76 CJ5 with 304 V8 in it. I put on an edelbrock performer
intake manifold and a Holley 670 Truck Avenger carb. I had problems
with it initially but that turned out to be a vacuum leak. After
finding that leak I must have gotten excited to have the Jeep running
again so I didn't look at everything as closely as I should have.
Last weekend while offroading my Jeep stalled out on me while I was
idling waiting for a guy in front of me to get un-stuck. I smelled
gas really strong and it seemed my Jeep was flooded out. I took off
the air cleaner and let it sit about 5 minutes and was then able to
start it right up. One of the guys there was watching, though, and
told me that there was a lot of gas just getting dumped into the carb.
A few minutes ago I was in the garage and decided to take a look. I
pulled the air cleaner off and put on my remote starter and started
the Jeep up. Please take a look at this picture:
http://jeepadventures.dyndns.org/temp/carbwoes.jpg
Within 2-3 seconds of starting up the Jeep, I saw large drops of fuel
dripping pretty fast down into the carb from the two circled spots at
the bottom of the picture. The guy the other weekend on the trail
said he saw fuel dripping fromthe holes in that cross-bar piece that
is circled at the top of the picture. When I first put the carb on I
*did* fiddle a little bit with the fuel mixture and also the float
levels. I have a suspicion that I may know what is wrong but don't
want to say because I'd hate to say and be completely wrong and have
what I say influence your responses in any way. Can someone who has
an idea of what is wrong let me know their opinion? Thank you in
advance for input. Oh yeah, even after turning the engine off it
continued to drip fuel from those two bottom places for 4-5 seconds.

--

Less drivel, more Dremel.
Always carry a flagon of whiskey in case of snakebite,
and furthermore always carry a small snake.
- W.C. Fields

Re: Carburetor woes

"Shaggie" <blah@blah.com> wrote in message
: I have a suspicion that I may know what is wrong but don't
: want to say because I'd hate to say and be completely wrong and have
: what I say influence your responses in any way.

I'm not a carb guru by any means but I'm not afraid to be wrong!
Is there a chance that your tank has too much pressure or your return line
is clogged/pinched? It looks like the carb is being force fed.

-Brian

Re: Carburetor woes

Don't ya just love setting float levels....
;-)

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Shaggie wrote:
>
> I'm having trouble with my carburetor and know NOTHING about setting
> up a carb so I was hoping to get some input from y'all on this. I
> have a '76 CJ5 with 304 V8 in it. I put on an edelbrock performer
> intake manifold and a Holley 670 Truck Avenger carb. I had problems
> with it initially but that turned out to be a vacuum leak. After
> finding that leak I must have gotten excited to have the Jeep running
> again so I didn't look at everything as closely as I should have.
> Last weekend while offroading my Jeep stalled out on me while I was
> idling waiting for a guy in front of me to get un-stuck. I smelled
> gas really strong and it seemed my Jeep was flooded out. I took off
> the air cleaner and let it sit about 5 minutes and was then able to
> start it right up. One of the guys there was watching, though, and
> told me that there was a lot of gas just getting dumped into the carb.
> A few minutes ago I was in the garage and decided to take a look. I
> pulled the air cleaner off and put on my remote starter and started
> the Jeep up. Please take a look at this picture:
> http://jeepadventures.dyndns.org/temp/carbwoes.jpg
> Within 2-3 seconds of starting up the Jeep, I saw large drops of fuel
> dripping pretty fast down into the carb from the two circled spots at
> the bottom of the picture. The guy the other weekend on the trail
> said he saw fuel dripping fromthe holes in that cross-bar piece that
> is circled at the top of the picture. When I first put the carb on I
> *did* fiddle a little bit with the fuel mixture and also the float
> levels. I have a suspicion that I may know what is wrong but don't
> want to say because I'd hate to say and be completely wrong and have
> what I say influence your responses in any way. Can someone who has
> an idea of what is wrong let me know their opinion? Thank you in
> advance for input. Oh yeah, even after turning the engine off it
> continued to drip fuel from those two bottom places for 4-5 seconds.
>
> --
>
> Less drivel, more Dremel.
> Always carry a flagon of whiskey in case of snakebite,
> and furthermore always carry a small snake.
> - W.C. Fields

Re: Carburetor woes

"Shaggie" <blah@blah.com> wrote in message
news:aem3c0dcv4865vuf7f7v1uplgpdrqnv4ht@4ax.com...
> I'm having trouble with my carburetor and know NOTHING about setting
> up a carb so I was hoping to get some input from y'all on this. I
> have a '76 CJ5 with 304 V8 in it. I put on an edelbrock performer
> intake manifold and a Holley 670 Truck Avenger carb. I had problems
> with it initially but that turned out to be a vacuum leak. After
> finding that leak I must have gotten excited to have the Jeep running
> again so I didn't look at everything as closely as I should have.
> Last weekend while offroading my Jeep stalled out on me while I was
> idling waiting for a guy in front of me to get un-stuck. I smelled
> gas really strong and it seemed my Jeep was flooded out. I took off
> the air cleaner and let it sit about 5 minutes and was then able to
> start it right up. One of the guys there was watching, though, and
> told me that there was a lot of gas just getting dumped into the carb.
> A few minutes ago I was in the garage and decided to take a look. I
> pulled the air cleaner off and put on my remote starter and started
> the Jeep up. Please take a look at this picture:
> http://jeepadventures.dyndns.org/temp/carbwoes.jpg
> Within 2-3 seconds of starting up the Jeep, I saw large drops of fuel
> dripping pretty fast down into the carb from the two circled spots at
> the bottom of the picture. The guy the other weekend on the trail
> said he saw fuel dripping fromthe holes in that cross-bar piece that
> is circled at the top of the picture. When I first put the carb on I
> *did* fiddle a little bit with the fuel mixture and also the float
> levels. I have a suspicion that I may know what is wrong but don't
> want to say because I'd hate to say and be completely wrong and have
> what I say influence your responses in any way. Can someone who has
> an idea of what is wrong let me know their opinion? Thank you in
> advance for input. Oh yeah, even after turning the engine off it
> continued to drip fuel from those two bottom places for 4-5 seconds.
>

You have a float level that is too high, or a needle and seat that are
stuck. See if you are getting the same drippage on the back two venturis
(your circled spots). If it is just the front ones doing it, then the front
float is the culprit. The nice thing about Holley carbs is that you can
easily pull the needle and seat to inspect it. Just loosen the lock screw
and turn the needle out. Check to make sure it is clean. It only takes one
little piece of dirt to mess it up. I would suggest carrying a spare. Once
you've verified that it is clean, screw the needle back in until you feel it
hit the float. You'll feel a little resistance because you will be trying to
push the float down into the gas that's in the bowl. Once you're there, give
it about another half turn and replace the locking screw. Remove the float
level screw (the one on the side of the bowl) and have a rag ready. If the
level is high you will get some spillage. Then, with the rag still there to
catch spillage, rock the vehicle from side to side until the fuel level is a
bit lower than the sight hole. Dry up any spilled gas and start the engine,
but be ready to either shut it off or catch more spillage in case the seat
isn't sealing. Once you get the engine running where there isn't gas gushing
out the hole, then you can adjust the level properly. If it is trickling out
the hole, turn the needle and seat in 1/4 turn and rock the vehicle again to
get the level down. Once it stays below the sight hole, then you can raise
the needle slightly intil you just get the bottom of the threads in the
sight hole wet. This is the ideal setting. I wouldn't be afraid to run it
1/16-1/8" low considering what a typical Jeep goes through.

Try this and post back with how you turned out.

Chris