| Electric Choke Conversion for Carb. [message #246762] |
Tue, 08 April 2014 10:21  |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Switching over to an electric choke and found this info from Qudrajetparts.com I emailed them with the following question.
I am wanting to change over my original choke assembly for a Quadrajet CARB#7043254 (1976 GMC motor home). I have the temperature sensing one on now (OE) and would like to install the electric choke for this model. Will part # Q1211A retrofit in the existing choke housing or would I need to get the Q1221 for a big block chevy.
Bruce,
If your thermostat is located on your intake manifold you will need to use Q1221 (if your vehicle is on application list)
If you currently have a black round hot air thermostat mounted on side of carb, all you need is Q1211A.
Greg
http://quadrajetparts.com/advanced_search_result.php?keywords=q1211a&search_in_description=1&x=0&y=0
http://quadrajetparts.com/rochester-quadrajet-parts-quadrajet-chokes-electric-choke-thermostat-kit-flat-terminal-p-416.html
Replacement assembly with "Flat" shaped terminal. The flat terminal allows use of standard spade type electrical connection. Electric Choke Thermostat fits Rochester Quadrajet, Twojet and Dualjet carburetors.
When 12v power is supplied to the choke and the element heats up, the bi-metal coil tightens up. When the coil cools down, the coil un-winds.
Includes 3 retainers and 3 screws.
Note:
Screws included with this kit are Q4215, over sized, self tapping screws.
Hot-Air Choke to Electric Choke Conversion:
This electric choke thermostat can be used to replace original hot-air thermostat, just run 12v. to the thermostat and remove original hot-air choke thermostat gasket.
Thermostat diameter: 2-1/4"
Note: Pigtail connector # Q1331 or OEM connector can be used for a factory look, but the connectors locking/unlocking mechanism will be lost.
Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: Electric Choke Conversion for Carb. [message #246785 is a reply to message #246774] |
Tue, 08 April 2014 13:32  |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
Karma: 0
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Just curious as to why you are replacing the stock choke. After much fussing and cursing I discovered my stock choke was actually missing a crucial part. After replacing that it works great. Pump the gas once, crank it, fires right up, even after sitting for weeks.
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: Electric Choke Conversion for Carb. [message #246788 is a reply to message #246762] |
Tue, 08 April 2014 14:04 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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Once you block the crossover the little area that provides heat to the choke only gets hot as the engine block heat soaks which leaves the choke on too long.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Electric Choke Conversion for Carb. [message #246790 is a reply to message #246788] |
Tue, 08 April 2014 14:18 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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What Kerry said. On my trip to Montgomery, when we stopped to stretch our
legs. The engine would not start. I removed the air filter housing and
watched the gas vaporize before it would go in the intake.
On Tue, Apr 8, 2014 at 1:04 PM, Kerry Pinkerton <Pinkertonk@mchsi.com>wrote:
>
>
> Once you block the crossover the little area that provides heat to the
> choke only gets hot as the engine block heat soaks which leaves the choke
> on too long.
> --
> Kerry Pinkerton
>
> North Alabama, near Huntsville,
>
> 77 Eleganza II, "The Lady", 403CI, also a 76 Eleganza being re-bodied as
> an Art Deco car hauler
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Electric Choke Conversion for Carb. [message #246801 is a reply to message #246790] |
Tue, 08 April 2014 16:33 |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
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I guess living way up north here that isn't a problem. Then again, a sweltering hot day here might get to 80°. 90% of the year it is 40's and overcast.
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: [GMCnet] Electric Choke Conversion for Carb. [message #246802 is a reply to message #246790] |
Tue, 08 April 2014 16:38 |
mikethebike
Messages: 331
Registered: January 2014
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I thought that is what it should do!
Our GMC has an electric choke and when it fails I'm going to Tractor/Supply and buy a diesel shut-off cable and convert it to manual. Then if it does not work it is nobody's fault but the operator.
| Bruce Hart wrote on Tue, 08 April 2014 14:18 |
What Kerry said. On my trip to Montgomery, when we stopped to stretch our
legs. The engine would not start. I removed the air filter housing and
watched the gas vaporize before it would go in the intake.
On Tue, Apr 8, 2014 at 1:04 PM, Kerry Pinkerton <Pinkertonk@mchsi.com>wrote:
>
>
> Once you block the crossover the little area that provides heat to the
> choke only gets hot as the engine block heat soaks which leaves the choke
> on too long.
> --
> Kerry Pinkerton
>
> North Alabama, near Huntsville,
>
> 77 Eleganza II, "The Lady", 403CI, also a 76 Eleganza being re-bodied as
> an Art Deco car hauler
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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| Re: [GMCnet] Electric Choke Conversion for Carb. [message #246817 is a reply to message #246802] |
Tue, 08 April 2014 19:24 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| mikethebike wrote on Tue, 08 April 2014 15:38 |
I thought that is what it should do!
Our GMC has an electric choke and when it fails I'm going to Tractor/Supply and buy a diesel shut-off cable and convert it to manual. Then if it does not work it is nobody's fault but the operator.
| Bruce Hart wrote on Tue, 08 April 2014 14:18 |
What Kerry said. On my trip to Montgomery, when we stopped to stretch our
legs. The engine would not start. I removed the air filter housing and
watched the gas vaporize before it would go in the intake.
On Tue, Apr 8, 2014 at 1:04 PM, Kerry Pinkerton <Pinkertonk@mchsi.com>wrote:
>
>
> Once you block the crossover the little area that provides heat to the
> choke only gets hot as the engine block heat soaks which leaves the choke
> on too long.
> --
> Kerry Pinkerton
>
> North Alabama, near Huntsville,
>
> 77 Eleganza II, "The Lady", 403CI, also a 76 Eleganza being re-bodied as
> an Art Deco car hauler
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
_______________________________________________
GMCnet mailing list
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If you do block the crossover, you can still retain the original choke by running a copper tube around the exhaust manifold one loop. I feel the original choke will do a better job than an electric choke even if it is coupled with a thermostat.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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