Quadrajet bit dropped off! ..HELP!
Thread Starter
Racer
Joined: Mar 2003
Posts: 282
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From: London
Quadrajet bit dropped off! ..HELP!
I was cleaning the Quadrajet off of my '79 (carb off the car), when i noticed that a small brass tube had dropped off the carb onto the work bench ...problem is, i have absolutely no idea where it came from?
I've had a good look over the carb and i can't see anywhere obvious place for it to fit ...i'm guessing it fell out the top when i turned the carb over, but i can't be sure.
The tube is approx 3.5cm long, and 2mm diameter.
It's a long shot, but does anybody have any idea where it might go?
I've had a good look over the carb and i can't see anywhere obvious place for it to fit ...i'm guessing it fell out the top when i turned the carb over, but i can't be sure.
The tube is approx 3.5cm long, and 2mm diameter.
It's a long shot, but does anybody have any idea where it might go?
Tech Contributor
Joined: Aug 1999
Posts: 14,376
Likes: 6,375
From: At my Bar drinking and wrenching in Lafayette Colorado
It's one of the 4 emulsion tubes that are pressed into the airhorn. Just put it back into the corresponding hole and give it a light tap with a rubber mallet.
Thread Starter
Racer
Joined: Mar 2003
Posts: 282
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From: London
Thanks for your reply Lars.
Ok.. i've had another look, and i'm still a bit stumped
I'm looking down into the four barrels of the carb (is this the air horn?..im not that familiar with the propper terms:-) ...but i can't see anywhere that this tube would fit...or any others like it still in place?
Am i looking in the right area?
Thanks.
Ok.. i've had another look, and i'm still a bit stumped
I'm looking down into the four barrels of the carb (is this the air horn?..im not that familiar with the propper terms:-) ...but i can't see anywhere that this tube would fit...or any others like it still in place?
Am i looking in the right area?
Thanks.
Safety Car
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From: Florham Park NJ Port Credit Ontario
Racer
Joined: Nov 2004
Posts: 485
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From: Oakville ON
I think Lars is right and he assumes you have the air horn off (the top part), but if you don't that would explain why you don't see the others. Maybe it fell off inside and then managed to fall out through the vent when you turned it over (with the air horn on). If you are not knowledgable about putting it back together, I would suggest you get help first - it can be tricky and you can really damage it.
Thread Starter
Racer
Joined: Mar 2003
Posts: 282
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From: London
Thanks for your help guys
I'm wondering if perhaps (as rich suggested) the tube fell off inside and then just dropped out when i turned the carb upside down?
and yep..i also thought it might be a vacuum pipe, but i just can't find any hole that it fit's in, anywhere externally...and also, the carb was pretty grubby on the outside, and this tube was perfectly clean?
I might try re-fitting the carb and see what happens ...if it's an important part, i'm sure it will become obvious ...in which case i guess it will have to come apart (or get someone who know's a bit more that i do to do it!).
Thanks again guys
I'm wondering if perhaps (as rich suggested) the tube fell off inside and then just dropped out when i turned the carb upside down?
and yep..i also thought it might be a vacuum pipe, but i just can't find any hole that it fit's in, anywhere externally...and also, the carb was pretty grubby on the outside, and this tube was perfectly clean?
I might try re-fitting the carb and see what happens ...if it's an important part, i'm sure it will become obvious ...in which case i guess it will have to come apart (or get someone who know's a bit more that i do to do it!).
Thanks again guys
Tech Contributor
Joined: Aug 1999
Posts: 14,376
Likes: 6,375
From: At my Bar drinking and wrenching in Lafayette Colorado
If it fell out when you flipped it over, it's an emulsion tube. It feeds the secondaries. You will not immediately notice the problem running the carb. You need to take the top (the "airhorn") off the carb, flip the top over, and insert the tube. The secondaries do not operate correctly without it.
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From: A 12/8 man in a 4/4 world
You should have four. As you can see I only have three.
deleted picture from host. Will not be able to upload until I get home.
Last edited by Disco_Mike; Jun 13, 2007 at 08:18 PM.
Thread Starter
Racer
Joined: Mar 2003
Posts: 282
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From: London
Ok, i think i might have cracked it!
i took the top of the carb, and inside i found another of the same sized tube's just loose and sitting in the bottom of the casing...so i stuck that, plus the one that fell out the top, back into the two holes on the underside of the carb top.
I've got the whole thing back together again, and hoping everything's back in the right place
If this carb still works i will be VERY pleased
Thanks Lars, and everyone else for your help. I should get the carb back on the car tomorrow...and then i'll know if i did everything correctly or not! ....possibly the car might even run better, now that i've re-fitted the two emulsion tubes
Thanks again
i took the top of the carb, and inside i found another of the same sized tube's just loose and sitting in the bottom of the casing...so i stuck that, plus the one that fell out the top, back into the two holes on the underside of the carb top.
I've got the whole thing back together again, and hoping everything's back in the right place
If this carb still works i will be VERY pleased
Thanks Lars, and everyone else for your help. I should get the carb back on the car tomorrow...and then i'll know if i did everything correctly or not! ....possibly the car might even run better, now that i've re-fitted the two emulsion tubes
Thanks again
