Author Topic: Edelbrock Carb  (Read 2675 times)

Offline A robs 23

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Edelbrock Carb
« on: March 11, 2019, 08:41:56 PM »
Hey guys,

My carb is having some intermittent issues with high idle and kick down.

It idles so high that I believe the fluid coupling in the torque converter is causing my truck to stay in gear while i am attempting to break. This causes my rear end to slide around on the ice. Very dangerous.

I just ran a can of carb cleaner over the linkages and through the primary and secondary. It seems like it has helped slightly but not fixed my problem. Also, my throttle pedal tends to have a stick point.

Thanks for the help!

Andrew
86’ K20




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Offline A robs 23

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Re: Edelbrock Carb
« Reply #1 on: March 11, 2019, 08:42:52 PM »
Edelbrock 1406 1350


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Offline VileZambonie

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Re: Edelbrock Carb
« Reply #2 on: March 12, 2019, 04:18:33 AM »
Back off the fast idle screw and ensure the choke is working. Is there 12v at the choke coil? Is the choke coil opening?
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Offline A robs 23

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Edelbrock Carb
« Reply #3 on: March 12, 2019, 04:28:21 AM »
At the same time I took those pictures, I actually did back off on the fast idle screw. I also backed the curb idle screw off a bit as well.

I will play with the choke tomorrow and check voltages as well. Thanks.


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« Last Edit: March 12, 2019, 11:39:30 AM by A robs 23 »

Offline Ronno6

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Re: Edelbrock Carb
« Reply #4 on: March 12, 2019, 10:14:54 PM »
See if the throttle acts the same way when the engine is not running.
When the throttle shaft bores get worn, the shaft can stick badly when the airflow against the butterflys
is high while the engine is running. This puts a side load on the butterflys and throttle shaft.
Mine was so bad that it was virtually impossible to drive with a manual tranny.
I have not found an off the shelf bushing kit for those.
Edelbrock's suggestion was to get a new carb.
So I did...a Holley.....
« Last Edit: March 13, 2019, 10:40:55 AM by Ronno6 »
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Offline 75gmck25

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Re: Edelbrock Carb
« Reply #5 on: April 19, 2020, 06:03:27 PM »
If you have a point to attach it, you can put the throttle return springs on the large diameter hole (where your thumb is in the pictures), and have it pull forward on the throttle.  The upper arm is a little longer, so you get more leverage to pull the throttle back.  My truck had a lifting eye on the front corner of the intake manifold, and I used that to hook up the spring, but you can also buy an L bracket and mount it there on the manifold bolt.

Bruce