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06-05-2015, 03:40 PM
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#1 |
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Registered User
Join Date: Jun 2009
Location: Corona, ca
Posts: 406
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Accelerate and dies
I have this 49 with a 216, just replaced the fuel tank, lines, filter and a bunch of other stuff. It seems to idle great, but as soon as I touch the gas pedal it will die. When I first start it and have the choke all the way open I can hit the pedal no problem, but once the choke is off no dice. Any ideas? Accelerator plunger maybe? Carb was new a few years ago and truck hasn't been driven in 15-20yrs. It's been sitting in my in laws garage.
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06-05-2015, 04:05 PM
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#2 |
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Registered User
Join Date: Nov 2012
Location: Fox, AR
Posts: 394
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Re: Accelerate and dies
Yup. accelerator pump or maybe just some crud in the carb.
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Old Crow '54 Chevy Panel, '00 Bounder 36S, '95 Jeep YJ |
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06-05-2015, 05:17 PM
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#3 |
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Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: Accelerate and dies
Yes, when I ran the 1bbl carbs, or even 2gc 2 bbls I carried a spare accelerator pump. Seems they failed about every 5 years, even more if it sits and they dry out.
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1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
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06-05-2015, 07:25 PM
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#4 |
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Registered User
Join Date: Jun 2009
Location: Corona, ca
Posts: 406
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Re: Accelerate and dies
good to know, thanks! I have an old rebuild kit NIB that I found in a box of stuff in the truck, guess I have something to do tonight.
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06-06-2015, 08:04 AM
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#5 |
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Registered User
 
Join Date: Dec 2012
Location: North Carolina
Posts: 4,989
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Re: Accelerate and dies
Either a carb or leak. My leak was at my gas tank and I tightened down the fitting near the sending unit and it ran great
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1971 GMC Sierra 1959 GMC 100 |
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06-06-2015, 09:29 AM
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#6 |
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Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
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Re: Accelerate and dies
Easy to check, pull air cleaner and look down throat. Move throttle and you get s squirt or gss if its good, little or none if bad.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
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06-07-2015, 11:24 AM
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#7 |
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Registered User
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,718
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Re: Accelerate and dies
Hitting the throttle and having it die or falter and pick up and go is normally accelerator pump related. Having to keep the choke on part way to keep it running is vacuum leak related.
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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