Carter AFB will not idle down

[Turbogus]

A couple of years back it developed a small leak at the primary throttle shaft. I sent it in for bushing installation and following that I did a bebuild with a Jiffy kit.
I lost the choke pivot pin (nomenclature unknown) that connects the piston to the lever inside the electric choke. I found that a smooth paper clip, cut down to length fit nicely in the tiny bore.
Time has gone by and after doing other work on the motor this AFB is on despite several attempts I can't seem to diengage the fast idle cam, unless I manually disengage it by reaching under the air cleaner and doing so. It may be related to the repair I mentioned above but I'm dubious.
There's no binding in the linkage that I can determine.

 

[gert]

Are you getting 12 volts? Coil broken? I’m on Tapatalk and it won’t let me see the pics


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[Turbogus]

My inner mechanic had a word with me this morning before I got up, I'll bet I didn't put enough spring tension on the clockspring of the electric choke.

I'll have a look see during my break, if I have time.

 

[Turbogus]

After getting into it more closely I finally found that the throttle return springs were rubbing on the cam of the kickdown slowing/prohibiting it's motion. Going to try to find offset throttle return springs.

 

[gert]

Cool, is that an old Carter Marine carb?


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[Turbogus]

No Gert, this was marketed back in the early '80's as a 'Black Stallion' model from Carter. I used it fresh out of the box on a steel crank 4 bolt main 350 that I was building for another mid '60's Chevelle. Turned out the cam went flat in the lowered '77 Chev short wide truck I was driving, so there it went. When I eventually sold that truck I pulled the motor to sell seperately but my best friend saved that carb for me.

 

[Turbogus]

Here's the difference;

https://www.jeepz.com/forum/attachm...ll-not-idle-down-wp_20180529_13_06_50_pro.jpg

https://www.jeepz.com/forum/attachm...ll-not-idle-down-wp_20180529_12_47_29_pro.jpg

No wonder those springs were hanging up the fast idle cam tang

...but do you think I could find these locally.... NO

 

[Torxhead]

Gus, have you tried a local industrial hardware?

 

[gert]

No Gert, this was marketed back in the early '80's as a 'Black Stallion' model from Carter. I used it fresh out of the box on a steel crank 4 bolt main 350 that I was building for another mid '60's Chevelle. Turned out the cam went flat in the lowered '77 Chev short wide truck I was driving, so there it went. When I eventually sold that truck I pulled the motor to sell seperately but my best friend saved that carb for me.

Oh wow that’s pretty cool, never knew that


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[Turbogus]

I sure did Torx, and while there were springs aplenty, most were too heavy for a throttle return spring. After the new springs arrived I got it somewhat dialed in yesterday at work, the kickdown now works just like its supposed to. Now just got to figure out the delay on the e-choke.

 

[Turbogus]

I was able to take 'er to work today and dialed in the fast idle so it's working perfectly now and the e-choke delay is just right.

 

[Torxhead]

Now wait for the next thing to go wrong. BTW, I saw that spring set you pictured in post #7 at my local AZ, these were even chromed.

 

[Turbogus]

Yeah, there's always something to attend to...