vetteonbeach

well, I discovered the choke linkage rod on my quadra jet apparently isn't connected internally and is flopping loose - is there a simple fix to open it up to see if I can reconnect it? Carb was rebuilt about 500 miles ago and has never really seemed right to me.... had someone else look at it and adjust it and they said the rebuild looked fine, just needed to be adjusted on the car (which he did).

Thinking about just putting on a new carb - looks like edelbrock 1405 or Holley 4175 would be two replacement options. Any opinions on either of these?

thanks,

Michael

Peterbuilt

Remove #11 'choke rod retainer', pull up and push down and confirm that #12 'choke rod' is connected to #49 (the intermediate choke lever).

vetteonbeach

[QUOTE=Peterbuilt;1591812260]Remove #11 'choke rod retainer', pull up and push down and confirm that #12 'choke rod' is connected to #49 (the intermediate choke lever).

thanks very much for the diagram -

when I move #12, #48 isn't moving, I can't see #49 inside. I tried shining a light down inside but can't see inside that small hole 12 passes through.... #12 is definitely loose at the bottom inside and not connected as it should be

CanadaGrant

What you have to do is take the retainer off the linkage rod, 11 off 12, and lift the rod out. Then rotate 48 until you can see the arm 49 at the top and insert the linkage rod 12 back in the arm 49 then install the arm and retainer on the choke flap. It's easier on the bench but can be done on the car with a light in the proper position. If there is no arm 49 in there then whoever rebuilt your carb screwed up.

Brcmpbl

Do as CanadaGrant says and you should be good. It should not harm your settings at all to take the carb off your intake to do the job on the bench. It will be much easier that way. Just remember when bolting it back on that the mounting bolts don't need much torque––just snug them.

If you switch out your quadrajet for an Edelbrock or Holley, you're downgrading. The quadrajet will outperform both of them if it is set up properly.

ykf7b0

I'm thinking you will need to remove the carb and also remove the top plate to get this together. I just rebuilt mine and I will say that I love it. Once everything is right with the quadrajet it is hard to beat.

vetteonbeach

thanks, I have no problem R&R-ing the carb so I will take it off and see if I can get the rod back on as you outline one night this week.

thanks again,

Michael

PAmotorman

if the lever #49 is attached and to connect rod #12 to the lever all you need is a pair of needle nose pliers. you don't have to remove or take apart the carb. I have done it many many times when rebuilding carbs

vetteonbeach

well, part#49 was loose in the carb - I was able to turn the carb upside and dump it out.... now have to decide if I want to have it worked on for the 3rd time in 500 miles or go with something different....

Brcmpbl

No need to rebuild the thing again, you should be able to reattach the linkage yourself with a little patience. It's finicky because it is small, but it's not technically difficult. Worst case scenario, take the air horn off and it might be a little easier.

Peterbuilt

If I understand you correctly you took the carb off and turned it upside down and 49 fell out.
Practice connecting 12 to 49 while both parts are in your hand.
Line up the rod 12 at a 90* angle to the hole in 49.
With a slight twist, the rod will go into the hole.

Step 1- 49 fits into to part of the choke linkage from outside of the carb.
All you have to do is remove one screw on the choke linkage, pull everything away from the carb. Then line up the choke linkage with the hole on 49.

Step 2- Reinstall the choke and then connect the rod from the top.

Here's 49 as seen from the outside of the carb.

vetteonbeach

worth a shot, I will try it tonight.... thanks very much for all the help!!

wb003

I had a similar situation when after my rebuild, the float was apparently saturated, and would flood the carburetor. When I removed the airhorn and replaced the float, my choke linkage also separated. I made several attempts to correct while on the car, but was unsuccessful. I closed up the carb, and drove it to my trusty mechanic that I use when I run out of proper tools or patience... $90 later it was running great.

The quadrajet is great, but can be very tedious, and you need 3 hands, if you do not work on them often.

COOLTED

I've done that before. it's not hard, just a tad tricky.