mark79,80

I recently installed an electric choke in a 1979 L82 Rochester carburetor replacing the hot air choke.
I removed the electric choke from a 1980 L48 carburetor and noticed that
the end of the choke coil is isolated from grounding as the carburetor
has a rubber tube covering the choke linkage. On the 1979 carburetor
the end of the electric choke coil fits between a metal tab with slots so it is not isolated.

The electric choke seems to function correctly.
But the GM engineers must have had a reason isolating the end of the choke coil from grounding.
Is there a problem the way I have installed the choke?

MelWff

Are you sure the coil is actually in the circuit? I was under the impression that there is a heating element that the coil is attached to. The rubber may be there for some other purpose such as vibration.

mark79,80

Coil works. Energize coil and choke fully opens.

MelWff

Yes I understand the coil works, you are assuming the spring is part of the circuit, isnt the spring mounted on a heating element? The ground appears to be through the housing not the coil.

http://www.cliffshighperformance.com...lectric_1.html

'75

mark79,80

Thanks for the reply. I thought the choke coil was the heating element.