Recent Posts

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1
Quadrajet Parts and Numbers / Re: Metering Rod and Jet Combos
« Last post by SUPRCHY on February 21, 2026, 02:27:59 PM »
Just found another one:

Jet & Rod Kit#   17067817: E4M

 .077"     Primary Jets
 61U       Primary Metering Rods
 DD        Secondary Metering Rods
 "K"        Secondary Hanger

SUPRCHY
2
Quadrajet Parts and Numbers / Re: Do these Primary Rods EXIST or are they just TYPOs?
« Last post by SUPRCHY on February 21, 2026, 02:19:59 PM »
Just found the answer to question #1. I just had my hands on a Primary Rod marked 37J from a 7045193. Since the 9C calls for a 7043537 and the rod is marked 37J(which falls inline 7043536 = 36J & 7043538 = 38J) I feel pretty good about this one.

While question #4 asks about the Auxiliary Rod and this one is marked 35B. If we assumed it is the original that would be a 17052814?
No way to know for sure, but this carburetor was not a reman and it looks fairly original to me.

Let me know if you have any evidence either way.

SUPRCHY
3
Quadrajet Parts and Numbers / Do these Primary Rods EXIST or are they just TYPOs?
« Last post by SUPRCHY on February 20, 2026, 09:48:20 AM »
Doing some Quadrajet research and I've found some Primary & Auxiliary Rod numbers listed in the 9C's that don't show up on any lists or internet searches. I hope someone has dealt with these before. Thanks for any help given.

      P. ROD#              9C-              CARB#
1.)  7043537             2012            7045193
2.) 17053335            3091T          17058512
3.) 17053339            2014-A         17057533

   AUX. ROD#            9C-              CARB#
4.) 17052814            2012            7045193/230
4.) 17052815            1045            7045548

Interesting how many were Cadillac carbs.

SUPRCHY
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Quadrajet Carb Talk and Tips / Re: Looking for the thickness of those pressed in Quadrajet secondary orifice plates
« Last post by DJD OLDS 4MC on February 19, 2026, 04:14:49 PM »
In case anyone is interested attached is information I found about the secondary orifice plates in a Quadrajet.
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Quadrajet Carb Talk and Tips / Casting numbers
« Last post by gstocker on February 18, 2026, 03:24:16 PM »
Is there a site out there that has the baseplate numbers and what they're carb number it belongs to? Bought a 7044202 from a swap meet but the baseplate isn't the correct one. Plus are all baseplates from 72-75 (chevy carb) the same including the 1901 edelbrock?
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Quadrajet Carb Talk and Tips / Re: Idle speed solenoid
« Last post by Turbo26T on February 18, 2026, 02:10:00 PM »
Kenth : Thanks for your input...I , however , am well versed in solenoid operation in regards to throtte speed increase ..No offense intended ,  but Im not wanting to know how they operate , setting procedure , wiring diagrams , etc
 I am simply looking for a solenoid strong enough to open the throtte against the return spring pressure and increase the RPM's when the A/T is in gear , when the A/C compressor comes on @ Idle....
 Thanks again for your input
  Stan
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Quadrajet Carb Talk and Tips / Re: Idle speed solenoid
« Last post by Kenth on February 18, 2026, 01:56:23 PM »
Normally, the idle speed is set with the solenoid active, A/T gear engaged and AC on.
No further increase in speed for AC on should be necessary.
With the solenoid inactive, the speed is set 100-150 rpm lower.
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Quadrajet Carb Talk and Tips / Re: Secondary vacuum draw vs air door opening - test
« Last post by lightning boy on February 18, 2026, 01:07:14 PM »
That's interesting. I would have thought the vacuum would have been much less.
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Quadrajet Carb Talk and Tips / Re: Idle speed solenoid
« Last post by Turbo26T on February 18, 2026, 10:05:44 AM »
Kenth : Its a #17082224 ..but I've tried factory Q/Jet idle-stop/idle-speed  solenoids and they are not strong enough to open the throttle from curb idle . ..Only after the throttle is opened , will  the factory solenoid extend and hold  idle speed at an increased RPM. As I understand it , they were used to retract after the ign is turned off to completely close the throttle plates to negate "Dieseling"
 What I'm looking for is a solenoid that has enough force to increase idle speed when the A/C compressor comes on without having to blip the throttle pedal...Either a vacuum or an electric (12V) solenoid can be made to work..
 Hopefully this may clarify what I'm trying to accomplish..
 Stan
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Quadrajet Carb Talk and Tips / Re: Idle speed solenoid
« Last post by Kenth on February 18, 2026, 01:39:04 AM »
It would help knowing the carb-# and application.
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