Electric Choke Grounding
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,143
Likes: 195
From: Englewood FL
Electric Choke Grounding
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?
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?
Race Director
Joined: May 2006
Posts: 18,735
Likes: 2,582
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.
Race Director
Joined: May 2006
Posts: 18,735
Likes: 2,582
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
http://www.cliffshighperformance.com...lectric_1.html
Last edited by MelWff; Oct 8, 2013 at 02:12 PM.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
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
http://www.cliffshighperformance.com...lectric_1.html
