I guess I need to know what to call it before I can adjust it. Thanks for your help.
Butterflys
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Joined: Jul 2003
Posts: 95
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From: Davenport FL
Butterflys
Is it reasonable to expect your carb choke plate to be 99% closed when dead cold and 99% open when fully warmed? Should it be completely open after driving 20 minutes when your water temperature is stable?
I am still fighting with my new Holley electric choke trying to get it to operate just right each and every time. Most often when its cold, the plate is about 90% closed and when its warm its about 75% open. I can adjust it to make it close completely and then it doesn't want to open completely and vise versa.
Thanks for your help.
www.mycarframes.com
I am still fighting with my new Holley electric choke trying to get it to operate just right each and every time. Most often when its cold, the plate is about 90% closed and when its warm its about 75% open. I can adjust it to make it close completely and then it doesn't want to open completely and vise versa.
Thanks for your help.
www.mycarframes.com
Last edited by Carl914; Aug 25, 2006 at 10:39 PM.
Safety Car
Joined: Aug 2000
Posts: 3,711
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From: San Antonio TX
It shouldn't be completely closed. You should have instructions for how to set the choke, and if not you can get them from www.Holley.com in their tech. The choke will be nearly closed, but it shouldn't be closed to the point that there is tension slamming it shut. And it's a choke blade. The butterfly is the throttle.
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Joined: Jul 2003
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From: Davenport FL
Choke Blade
I ran mine for about 10 years without a choke at all as well, but it seemed to have to run on the rich side to start it like that. I thought maybe with a real choke I could lean it out into the normal range.
I fooled with this thing another hour today. Sometimes I wonder if "cold" in FL is still about 110 degrees under the hood. BTW, its still not right. I can make it easy to start without touching anything but the key, but then it never seems to open up fully. The battle continues.
Thanks for your reply.
http://www.mycarframes.com
I fooled with this thing another hour today. Sometimes I wonder if "cold" in FL is still about 110 degrees under the hood. BTW, its still not right. I can make it easy to start without touching anything but the key, but then it never seems to open up fully. The battle continues.
Thanks for your reply.
http://www.mycarframes.com
Last edited by Carl914; Aug 25, 2006 at 10:40 PM.
Race Director
Joined: Mar 2006
Posts: 14,112
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From: Florida
You may have been spoiled by FI along the way.
With carbs and chokes, to start you should pump the pedal once to set the choke for a cold start and get a shot from the accelerator pump. Then after it warms a little you blip the throttle again and the choke should open either partially or fully depending on the heat of the engine or the choke setting. If you have a fully warmed engine, opening the throttle linkage should spring the choke plate to full open or verticle. In Florida the choke need not be adjusted as "choked" as in colder climates.
With carbs and chokes, to start you should pump the pedal once to set the choke for a cold start and get a shot from the accelerator pump. Then after it warms a little you blip the throttle again and the choke should open either partially or fully depending on the heat of the engine or the choke setting. If you have a fully warmed engine, opening the throttle linkage should spring the choke plate to full open or verticle. In Florida the choke need not be adjusted as "choked" as in colder climates.
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Joined: Jul 2003
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From: Davenport FL
Electric Choke Blade
Thanks again.
Tonight I tried an experiment of my own and we will see how it works out tomorrow and during the weekend.
I had my wife hit the pedal once like you said, but with the choke plate fully open. Then I had her crank the engine while I turned the adjustment **** on the electric choke until the car started, then stopped the counterclockwise rotation. I tighten it up on that position, which happened to be on the quickest choke release notch on the electric choke. Lastly I started the cold engine a few times and it worked well. Finally, as usual, I ran out of daylight.
Tomorrow I will run it 30 minutes or so and make sure the choke opens back up when completely warm. My most current thoughts were that an electric choke does not use the engine warmth, but uses its own electric coil as a timer for the choke. Who knows, it might be 125+ degrees under a dark colored hood in Central Florida before I even put the key in. That would skew what was "normal" vs what is "normal for FL".
BTW, I could be wrong and I reserve the right to plead temporary insanity at any time. Not that anyone is immune from going crazy working on these kind of things.
I welcome your input as always.
http://www.mycarframes.com
Tonight I tried an experiment of my own and we will see how it works out tomorrow and during the weekend.
I had my wife hit the pedal once like you said, but with the choke plate fully open. Then I had her crank the engine while I turned the adjustment **** on the electric choke until the car started, then stopped the counterclockwise rotation. I tighten it up on that position, which happened to be on the quickest choke release notch on the electric choke. Lastly I started the cold engine a few times and it worked well. Finally, as usual, I ran out of daylight.
Tomorrow I will run it 30 minutes or so and make sure the choke opens back up when completely warm. My most current thoughts were that an electric choke does not use the engine warmth, but uses its own electric coil as a timer for the choke. Who knows, it might be 125+ degrees under a dark colored hood in Central Florida before I even put the key in. That would skew what was "normal" vs what is "normal for FL".
BTW, I could be wrong and I reserve the right to plead temporary insanity at any time. Not that anyone is immune from going crazy working on these kind of things.
I welcome your input as always.
http://www.mycarframes.com
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
It should be about an 1/8th inch open when cold and fully open(90 degrees) when up to temp.
My advice...
Just set it as far lean as it will go
No more worries about it bieng closed a little after it's warmed up.
My advice...
Just set it as far lean as it will go
No more worries about it bieng closed a little after it's warmed up.
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Joined: Dec 2004
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From: Clearwater Florida
Originally Posted by Carl914
Thanks again.
My most current thoughts were that an electric choke does not use the engine warmth, but uses its own electric coil as a timer for the choke.
http://www.mycarframes.com
My most current thoughts were that an electric choke does not use the engine warmth, but uses its own electric coil as a timer for the choke.
http://www.mycarframes.com