1963 Carter AFB 3461S Choke Spring

[Frederick H.]

Looking to replace the choke spring as part of the carb rebuild - noticed the one from Zip does not have the same configuration where it engages the tang in the housing (doesn't appear as secure). I didn't see a matching part listed on Mike's Carburetor site either. Anyone have any luck for a source?

Thanks in Advance.
Fred

[Duke W.]

I wouldn't bet that you can find a NOS spring. Why do you think it needs to be replaced?

Duke

[Frederick H.]

I haven't investigated entirely yet but thought I would include a new spring with a fresh rebuild. I haven't referred to the photos in the shop manual yet nor taken the choke cover off the clean the piston (probably a good starting point). The car isn't driven much (was started yesterday) and it is plenty warm in the garage and outside here in Plano, TX., so not sure how much the choke will engage at this point.

Thanks.

[Duke W.]

Are you planning to remove the carburetor and do a complete overhaul? Do you have a 1963 Corvette Shop Manual and a "zip kit" with the parts required for a carb refresh. Do you know how many miles/years it's been since the carb was overhauled?

The recommended choke housing setting is one notch lean, but yours appears to be four notches rich. Why is that?

I order to get decent advice you need to clearly state symptoms and your intentions, and why you think the carb needs to be overhauled, if that's your intention. It is not clear to me.

Duke

[Frederick H.]

- I have a shop manual but will not be doing the overhaul. If my usual local shop or other source can get it done in time for the October judging, then I'll let them do it otherwise I just want to get the choke to pass for operations check, hence my initial post only about the spring. (Lots of other items to complete before judging).
- It's been close to ten years since last rebuild with little driving since.
- I do not know why the choke is set so far to the lean setting - I didn't set it.
I will check the shop manual for settings, clean the choke, and reset the lean/rich settings as first steps.

Thanks.

[Mark E.]

In the Quadrajet world, choke coil springs are application specific with a myriad of PNs available. If this is the case with AFBs, think twice before replacing the original coil with another which may be generic or incorrect.

[Thomas S.]

eBay, enter Carter AFB choke spring Many choices