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 Post subject: Quadra jet help?
PostPosted: Mon May 17, 2010 5:28 am 
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EFI Slant 6
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Joined: Sat Nov 08, 2003 8:14 pm
Posts: 298
Location: West Covina, CA
Car Model: 1968 A108 225/3 on the tree
i've heard many of u guys express opinions about the Quadra jets. i have one i need some coaching to get rite. it's not on a Slant 6 so i'd rather not waste space on this board. it has a drip at one of the accelerator pumps when it is NOT on the jet.
any body will to guide me off the board?

D~~~!

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68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)


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 Post subject:
PostPosted: Mon May 17, 2010 7:11 pm 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
Car Model:
is it on some type of chrysler??


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 Post subject:
PostPosted: Mon May 17, 2010 8:17 pm 
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EFI Slant 6
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Joined: Sat Nov 08, 2003 8:14 pm
Posts: 298
Location: West Covina, CA
Car Model: 1968 A108 225/3 on the tree
sorry, no. i just picked up an older motorhome and it has a 454 Chebbie.


D~~~!

_________________
68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)


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 Post subject:
PostPosted: Mon May 17, 2010 8:36 pm 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7834
Location: Portland-ish
Car Model: Fiat 500e
So what's the question(s)?

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 Post subject:
PostPosted: Mon May 17, 2010 10:40 pm 
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2 BBL ''SuperSix''

Joined: Tue May 04, 2010 10:53 pm
Posts: 20
Location: Taber, Alberta Canada
Car Model:
Rebuild it. The Quadrabog can be a GREAT carb when tuned properly. I built one for my 78 Monte Carlo that had a mild small block in it, and when those secondaries opened you could hear them over the dual 2 1/2 exhaust! You could also hear money being wasted and the gas pumps in town calling.

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Some people are like Slinkies, not really good for anything but they bring a smile to your face when pushed down the stairs.


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 Post subject:
PostPosted: Tue May 18, 2010 3:56 am 
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Supercharged
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Joined: Sat Feb 16, 2008 1:25 pm
Posts: 5611
Location: Downeast Maine
Car Model:
If a carburetor is leaking, or has a drip, or vehicle has been stored or sitting unused for as little as six months it most likely needs a rebuild.

While you are at it, where this is a motor home, most of which spend their life parked 99% of the time, I would blow out the fuel lines as well.

_________________
67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC

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 Post subject:
PostPosted: Tue May 18, 2010 5:18 am 
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EFI Slant 6
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Joined: Sat Nov 08, 2003 8:14 pm
Posts: 298
Location: West Covina, CA
Car Model: 1968 A108 225/3 on the tree
i'm looking for tips as to what to suspect for the leak shown in this video.
http://www.youtube.com/watch?v=EtOdk3qEnxk
i was hoping to just stop the leak, but i'm thinking that a rebuild is probly the best idea.
the biggest carb i've ever done is the carter BBD. going into the 4bbl is a little intimidating.
is it really any different? or is it just more parts to keep track of?
blowing out the fuel line is a great idea. i don't think i would have thought of that.


D~~~!

_________________
68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)


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 Post subject:
PostPosted: Tue May 18, 2010 5:33 am 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
Car Model:
if that`s the problem just do a rebuild and set the float to the correct height using the measuring stick in the kit. if the fuel level in the bowl is to high at idle there is enough air flow to pull fuel from the booster, this is not suppose to happen until the throttle is moved.


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 Post subject:
PostPosted: Tue May 18, 2010 6:04 am 
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EFI Slant 6
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Joined: Sat Nov 08, 2003 8:14 pm
Posts: 298
Location: West Covina, CA
Car Model: 1968 A108 225/3 on the tree
that makes perfect sense. what puzzles me is why it only leaks on the one side? r there multiple floats? everything(vehicle and carb) appears to be level. could the fact that it's only one indicate a different problem, or maybe a second problem?

is there anywhere where i can get a blown apart diagram of my carb to use as a guide?

_________________
68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)


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 Post subject:
PostPosted: Tue May 18, 2010 7:35 am 
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TBI Slant 6
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Joined: Sat Feb 21, 2009 8:59 pm
Posts: 225
Location: Indy
Car Model:
Google is our friendhttp://www.florida4x4.com/tech/quadrajet/index.php http://www.carburetor.ca/carbs/tech/Roc ... index.html


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 Post subject:
PostPosted: Tue May 18, 2010 10:33 am 
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Supercharged
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Joined: Sat Feb 16, 2008 1:25 pm
Posts: 5611
Location: Downeast Maine
Car Model:
Gato:
Quote:
the biggest carb i've ever done is the carter BBD. going into the 4bbl is a little intimidating. Is it really any different? or is it just more parts to keep track of?
Just think of the project as rebuilding a pair of two barrel carburetors.

Once rebuilt, one driveability/reliability weak link will have been removed, and the old 4/jet will be trouble free for a while.

The following site may read as hostile, but stick with it:

Just for the heck of it, understanding that this site is Holley content dense, there is a lot of good informationcontained it it, and an explanation as to why to rebuild a carburetor rather than 0.5 rear-ending it.

_________________
67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC

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 Post subject:
PostPosted: Tue May 18, 2010 11:22 am 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
Car Model:
the air flow might be a little higher in that booster and not the others, so the fuel is being pulled out.


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 Post subject:
PostPosted: Tue May 18, 2010 12:43 pm 
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EFI Slant 6
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Joined: Sat Nov 08, 2003 8:14 pm
Posts: 298
Location: West Covina, CA
Car Model: 1968 A108 225/3 on the tree
and that would be adjusted with the mixture screw?

_________________
68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)


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 Post subject:
PostPosted: Tue May 18, 2010 5:38 pm 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
Car Model:
no, only the float level, for a carb to meter the right amount of fuel it has to be set right. the air flow in the seperate bbls are not perfectly matched, on race carbs do that, so a little more put on one corner of the carb even though they pull from the same fuel bowl.


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 Post subject:
PostPosted: Thu May 20, 2010 9:47 pm 
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EFI Slant 6
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Joined: Sat Nov 08, 2003 8:14 pm
Posts: 298
Location: West Covina, CA
Car Model: 1968 A108 225/3 on the tree
i got the top off. can see the float. time to figure out how to measure and adjust it.

_________________
68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)


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