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I am in the final stages of rebuilding my '81's Quadrajet but did not take enough pictures of the choke linkage. Can any of you tell me if the part in the second pic is in the correct orientation, in the first pic?
Any good detail pics of the choke linkage would also be appreciated.
Thanks Kid Vette, now I just have to figure out the orientation of the small choke rod lever that mounts inside the float bowl case, and which side the choke rod connects to the lever. Should have taken more pictures!
From: Las Vegas - Just stop perpetuating myths please.
I just have to figure out the orientation of the small choke rod lever that mounts inside the float bowl case, and which side the choke rod connects to the lever.
I just have to figure out the orientation of the small choke rod lever that mounts inside the float bowl case, and which side the choke rod connects to the lever.
50/50 chance to get it right.
Getting the choke rod lever installed in the carb body is a pain. I'm trying to do it with tweezers but darn, it's the most difficult part of this build.
I just have to figure out the orientation of the small choke rod lever that mounts inside the float bowl case, and which side the choke rod connects to the lever.
50/50 chance to get it right.
I've gotten pretty good at it but I've rebuilt 10-15 Q-Jets at this point.
The shaft on the choke body is keyed to the bottom part of that lower choke link. The upper holes are round.
What I do is attach the lower link to the upper link and fish it into the groove in the float bowl, then gently introduce the choke body while rotating the choke shaft (cap off lets you rotate it inside the choke housing). While rotating the shaft you can raise and lower the link to try to get the keyhole lined up. You put gentle pressure inwards on the choke housing to keep the lower link from slipping out of the groove.
Attach the choke lever to the rod and drop it into the carb body. Then support the carb so that the choke side is straight up. Use a small screw driver to move the lever into position so that you can see the slot where the choke slides into it. Use a #2 Phillips screwdriver to rotate the lever so it lines up with the choke . Remove the screwdriver and drop the choke into place. It takes about a minute to do.
Put the choke rod lever on the choke rod and use a long, thin piece of duct tape to hold the position of the lever where it needs to be. Insert that assembly down into the cavity and install choke. If the orientation of the lever is correct, it will seat properly and you can put a screw in to hold it. Then, pull out the duct tape. Pretty easy, once you get the hang of it.
From: At my Bar drinking and wrenching in Lafayette Colorado
Originally Posted by 64roadster
I am in the final stages of rebuilding my '81's Quadrajet but did not take enough pictures of the choke linkage. Can any of you tell me if the part in the second pic is in the correct orientation, in the first pic?
Gordon
You have the wrong lever arm attached to your choke shaft - that will not work...
You have the wrong lever arm attached to your choke shaft - that will not work...
Lars
Ok, I get the lever installed, facing rearward as much as possible. Then when I connect the rod and air horn the rod travel is too limited to function. I obviously have something wrong.
This is slightly different.
As shark racer says gently introduce the choke shaft into the carb, (the choke shaft is tapered slightly on the end). Let the shaft protrude slightly into the choke linkage cavity. Lower the rod & lever down to the choke shaft, letting the lever hang down, you just have to get it close so the shaft so can capture the lever while holding a little pressure against it with the shaft. Move the lever with the rod up and down until it aligns with the keyed shaft, push the choke assembly in. That is it.
In the early days of the Q Jet GM had to recall the Q Jets to replace the fast idle cam, the engine heat caused it to break, in some instances it locked the linkage to a fast idle speed. GM devised a tool to capture the link so that that the defective part could be changed, sometimes the link fell off, hello little magnet. I was a youngest mechanic in the Chevrolet shop, guess who got that warranty job?
Last edited by bpassmore; Jan 30, 2016 at 11:44 AM.
Reason: punctuation error
The link you're trying to work with is the one that goes to the air horn.
The air horn (upper link) to intermediate link is the one with the kick-out in it. The lower link is flat. Flip them around.
Ahhhh, no wonder. I had the links reversed. Man, you can't imagine how many hours I have spent trying to get the bent link to work in the lower position. The flat link was a piece of cake and gives all the rod travel I need.
I really appreciate the input of everyone. Pics really help to tell the story.
Last edited by 64roadster; Jan 30, 2016 at 12:34 PM.
Reason: Grammar
Ahhhh, no wonder. I had the links reversed. Man, you can't imagine how many hours I have spent trying to get the bent link to work in the lower position. The flat link was a piece of cake and gives all the rod travel I need.
I really appreciate the input of everyone. Pics really help to tell the story.
No problem - the part you put the screw through, by the way, is the part that the choke shaft goes through.
'81 E4ME Qudrajet Choke Linkage
