Automatic choke sticking

I have a 64 Caddy with a Carter carb. My automatic choke sticks wide open once it cools off making it impossible to start. It appears that the piston linkage in the choke assembly is sticking in the bottom of the bore. Any suggestions? I don't believe lubrication is an answer due to it drying up and causing another problem.

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Permalink Reply by Wayne Morris on September 3, 2023 at 8:48am

Thank you for your reply. I will have to check my heat riser, that I haven’t done yet.
I have pulled assembly apart, cleaned and readjusted it a few times now.
It seems to be the piston inside the choke housing is binding up in its bore. Is a new housing necessary or can something be done to correct this?

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