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11-01-2011, 06:12 PM
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#1 |
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Registered User
Join Date: Dec 2009
Location: Ste. Genevieve, MO
Posts: 526
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Carb Help
Rochester mono jet carb, on a 250, I unplug my auto choke during the summer cuz i dont need it, but now its getting cold so i plugged it back in....but the idle is really high, and i think its the vacuum, cuz, the spring on the vacuum, compresses all the way, and i even unpluged the vacuum hose, and the truck will go back to its normal idle...any ideas?
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11-01-2011, 06:59 PM
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#2 |
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Registered User
Join Date: Jun 2011
Location: Monroe, WI
Posts: 1,415
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Re: Carb Help
not to experienced with auto chokes but could you put a stiffer spring in?
__________________
Adam My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706 |
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11-01-2011, 07:39 PM
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#3 |
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Who's got steelies?
 
Join Date: Feb 2006
Location: Morrison, Oklahoma
Posts: 1,026
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Re: Carb Help
I don't understand what you mean by unplugging the auto choke. Like unplug the vacuum line to the choke pull-off?
__________________
 1969 C10 LWB W/ 250 I6 & 3spd1970 C10 with '67 small window cab, 68 front end, blue; 305/TH350, 3.08 limited slip rear end, manual brakes, power steering; & 4-wheel drums-My daily driver.1975 Chevelle Malibu Classic Coupe 350/th350 mint green1970 C20 Suburban 350/700R4 4.10 gearing green & white 1978 Big 10 Silverado 350/th350, working ac, 2 tone blue-My summer daily driver 1983 GMC 1500 Sierra 305/SM465 2.73 rear end How to add a trip odometer to your 67-72 stock speedometer How to rebuild your Q-Jet My Truck Page My Youtube Channel |
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11-01-2011, 07:47 PM
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#4 |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Carb Help
What model carb you got?
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11-03-2011, 08:28 PM
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#5 |
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Registered User
Join Date: Dec 2009
Location: Ste. Genevieve, MO
Posts: 526
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Re: Carb Help
By unplugging the choke i mean, there is a wire that runs from my ignition, all the way to the choke and plugs into this thing i dont know what it is on the carb.
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11-03-2011, 08:39 PM
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#6 |
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Registered User
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,455
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Re: Carb Help
Does the thing you unpluged look like one of these?. From my 70' 292
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11-03-2011, 09:07 PM
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#7 | |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Carb Help
Quote:
You say a wire goes to the choke and plugs into "this thing". I'm confused... |
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11-03-2011, 09:15 PM
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#8 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: Carb Help
Sounds like you plugged an Idle solenoid in.If it looks like the above and the pin from the solenoid extends and makes the linkage increase the idle,then that is what it is.Usually used on AC to keep the engine from stalling when the AC is putting more load on the engine.The choke is a Flapper(butterfly) in the top of the carb.It is usually operated by a cable or thermostatically(Bi-metal) spring.There may be a idle solenoid or a vacuum line to help open/close it but we'll need more pics to tell.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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11-04-2011, 08:32 AM
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#9 |
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Registered User
Join Date: Dec 2009
Location: Ste. Genevieve, MO
Posts: 526
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Re: Carb Help
Ok I'll get some pics up soon.
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