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Chevy carb problem? Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive World>> Antique Car Talk terryschimm Novice Dec 8, 2008, 1:16 PM Post #1 of 3 (2027 views) Chevy carb problem? Sign In My '72 Chevelle has (for the time being) a 307 2bbl which idles & runs beautiful, except on acceleration. If I ease into the pedal, it's fine, but too hard & it bogs down or kills. I replaced the vacume advance with a used one & it helped, but not to my satisfaction. Should I go with a new advance or look elsewhere for the problem? Tom Greenleaf Ultimate Carjunky / Moderator Dec 8, 2008, 1:35 PM Post #2 of 3 (2024 views) Re: Chevy carb problem? Sign In Check that the advance diaphragm is good but it's more likely the "accellerator" pump in the carb. CAREFULLY (yes it could flash at you if real hot in there), just look down carb after it has recently run (that way you know gas is in carb) and push the throttle by hand while looking down and see TWO squirts of gas. If those are missing it will stumble big time and the rubber plunger is available to replace for that. Those should be included in carb kits as well. If not hit back - bet I've got several NOS in my shop- they were common! T Loren Champlain Sr Veteran / Moderator Dec 8, 2008, 6:16 PM Post #3 of 3 (2017 views) Re: Chevy carb problem? Sign In Also, check the centrifugal advance. Those were famous for "freezing" up. Especially, the HEI type. Loren SW Washington   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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