Re: Mopar Quadrajet ??
[Re: ChinooK440]
#1406269
03/22/13 11:07 AM
03/22/13 11:07 AM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
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I Live Here
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Florida
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Quote:
I think what your calling an electric vent MIGHT be a mixture control solenoid which would be an electronic feedback carb. that needs a computer and associated sensors etc. to run correctly.
it may have the mettering needles that get a pulse/noid for the idle mixture.
IMHO,I would grind the shaft and remove the mopar throttle lever,find a older chebby carb from a 327/350, weld the mopar throttle lever onto the chebby carb throttle shaft.
this way all of the mopar throttle linkage/TV linkage hooks up correctly.
I am running a 1974 chebby q-jet on my roller cam 318 in the 85 truck.
hugh jorgan sent me a newish 1905 edelbrock q-jet/thermobog replacment carb for 72-85 dodge truck with 360/400/440(they dont make them any more) which is awsome with a working elect choke.
it shows a mopar throttle adaptor in the owner manual for it,but the lever looks almost identical to the mopar lever I use.
I just put the stock throttle stud in and it all adjusted out great with the stock throttle bracket/1-piece rod TV linkage for the mid 80s trucks.
do you have the intake bracket with correct rod/trans lever?(I have 2 set ups if you need one)
I have a few q-jets that I grabed up for future mods to fit mopar.
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Re: Mopar Quadrajet ??
[Re: ChinooK440]
#1406270
03/22/13 05:14 PM
03/22/13 05:14 PM
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Joined: Dec 2006
Posts: 3,533 Indiana
Fury Fan
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master
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Posts: 3,533
Indiana
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Quote:
I think what your calling an electric vent MIGHT be a mixture control solenoid which would be an electronic feedback carb. that needs a computer and associated sensors etc. to run correctly.
with this and Scratchin'. If that truly came off a 5th it wasn't the original carb, OEM was T-quad until '87 I think, then was feedback Qjet with spark and fueling computer (often mis-named as Leanburn).
Either way, I don't think 5ths ever got a 4-v, I think later ones of the feedback era got electronic Holley 2-barrels.
So, figure out for sure what you have and what that solenoid is. If it's a GM carb it could be from teh early 80s and with a solenoid bowl vent or something.
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Re: Mopar Quadrajet ??
[Re: dogdays]
#1406272
03/22/13 07:47 PM
03/22/13 07:47 PM
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Joined: Feb 2007
Posts: 680 NW IL
Biggie
mopar
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mopar
Joined: Feb 2007
Posts: 680
NW IL
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Here is a internet pic of the carb we have. We need to know what the blue plug in goes to
"Think of all the Ford owners who will someday want an automobile." John Dodge
57 dodge sierra wagon 03 chrysler 300m 10 dodge charger
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Re: Mopar Quadrajet ??
[Re: Biggie]
#1406273
03/22/13 09:03 PM
03/22/13 09:03 PM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
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I Live Here
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IIRC that blue plug is the noid for pulsing the metering needles. IIRC I have a carb in the shed that is apart. i will go take a pic of the inside of one. dog,the edelbrock 1905 were new casting to start with.it works like no other q-jet I have had. the choke works,its not worn out, and it was FREE!! wow! what a kick it has on the 440 over the 600 eddy carb.
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Re: Mopar Quadrajet ??
[Re: scratchnfotraction]
#1406274
03/22/13 09:06 PM
03/22/13 09:06 PM
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Joined: Feb 2010
Posts: 18,493 Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
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Quote:
..... in the shed that is ....
I have read many, many references to this " shed ". I'll bet it is huge!
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Re: Mopar Quadrajet ??
[Re: Hugh Jorgan]
#1406278
03/23/13 04:20 AM
03/23/13 04:20 AM
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Joined: Jan 2003
Posts: 14,610 Not2farfromNashville, TN
Rug_Trucker
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The truck Mopar Qjets don't have all that crap on them. I pulled one from a 86 van. My van engine came with a 87 Qjet.
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: Mopar Quadrajet ??
[Re: scratchnfotraction]
#1406280
03/23/13 08:34 PM
03/23/13 08:34 PM
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Joined: Feb 2006
Posts: 2,590 Piqua, Ohio
dodgeram440
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master
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Piqua, Ohio
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Quote:
here is the new replacement shed. 12x20
That's the shed on the left, right? Has to be to be big enough to hold all your goodies.
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Re: Mopar Quadrajet ??
[Re: poorboy]
#1406285
03/27/13 11:42 AM
03/27/13 11:42 AM
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Joined: Jan 2003
Posts: 14,610 Not2farfromNashville, TN
Rug_Trucker
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I Live Here
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A whistle maybe the throttle shaft. When the shaft gets sloppy, the butterflies hang up onthese carbs.
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: Mopar Quadrajet ??
[Re: Fury Fan]
#1406286
03/27/13 04:04 PM
03/27/13 04:04 PM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
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Quote:
To use that carb the first question we need to answer is: Does that solenoid need a PWM signal or a varying-voltage signal to operate as the OEM intended???
If PWM, you'd need a special module to make that work. If voltage, a simple potentiometer would work.
Either way, you'll need some way to monitor the adjustment vs AF ratio. But I guess if you use the adjustment only on the highway, you could simply lean it out until it starts to misfire.
To make it automatic, a vacuum switch of suitable range could be wired to trigger a relay that energizes the 'noid circuitry. Might not be real smooth when it kicks in/out, though, but a 'car guy' might find that to be useful feedback.
I looked in the shed for mine,must have tossed it.
I have a a q-jet you can have if you need one. I dont see that one working with out a ecm with all the bells whistles. it does not have the power piston/spring like a older q-jet.
I will swap you a 650 DP spredbore holley for the mopar throttle lever off of it.
I have used the wrong gaskets mix matching stuff and had a whistle. check that the base gasket/throttle gasket fits the intake/main body and seals.
check to make sure there is no vac leak in the main body choke port if the choke is striped off.
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Re: Mopar Quadrajet ??
[Re: moretoys]
#1406288
03/28/13 12:32 AM
03/28/13 12:32 AM
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Joined: Jan 2003
Posts: 10,563 Freeport IL USA
poorboy
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Well, I believe I've found my whistle. I had carb base gaskets that did not seal. the original 4bbl intake we are using had the old little square Carter. The 3 sources we checked could not locate a kit for the old Carter. Our remaining choices were a well used Carter AVS, a Thermoquad, and the Quadrajet. The Quadrajet won out because it was the best looking (cleanest, most complete, and most unmolested) one to start with and the electric choke was a huge + because there was no choke provision on the intake. Being too cheap to buy Hotheads $50 adapter, I spent several hours making one (real cost effective) then I had to add the spread bore adapter on top of that (if you counting, that makes 3 carb base gaskets) The base gasket between the spread bore adapter and my home made adapter was the one that did not seal. I'm sure homemade gaskets didn't help much either.
So today I filed my homemade adapter more flat (again), made new gaskets, used weatherstripping glue on top of the home made adapter, and bolted the whole mess together again. It lasted until the motor warmed up and then the whistle started coming back.
Time to regroup and rethink the process. The fix is only $400 away. Gene
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Re: Mopar Quadrajet ??
[Re: poorboy]
#1406289
03/28/13 03:40 AM
03/28/13 03:40 AM
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Joined: Jan 2003
Posts: 14,610 Not2farfromNashville, TN
Rug_Trucker
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Were you trying to find a kit for a Carter WCFB? I am willing to bet they can be found.
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: Mopar Quadrajet ??
[Re: Rug_Trucker]
#1406290
03/28/13 11:13 PM
03/28/13 11:13 PM
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Joined: Jan 2003
Posts: 10,563 Freeport IL USA
poorboy
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Quote:
Were you trying to find a kit for a Carter WCFB? I am willing to bet they can be found.
Yep, that's the one! According to everyone we checked with, they show no kit available for the carb numbers we have. Supposedly it was made in early 54 and was 54 only. One source could "make" us a kit for around $100. Don't think so.
The ball is in Biggie's court now, its his car, his money.
Scratch, could you send the info you sent to me to Biggie (the guy earlier in this thread that posted the picture of our carb)? I have no clue how to forward a PM. Gene
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