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Carburetors

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Symptoms of a Bad or Failing Carburetor
Common signs include reduced engine performance, black smoke coming from the exhaust, backfiring, overheating, or hard starting.
How Long Does an Accelerator Pump Last?
If you drive a newer vehicle, you may not be familiar with accelerator pumps. New vehicles almost invariably operate on a system of fuel injection, and the accelerator pump is a component...
How Long Does a Carburetor Last?
The carburetor combines fuel and air in the engine by using an intake vacuum supply. The air is pulled down through to the carburetor by the intake vacuum while fuel is siphoned from...
How Long Does a Fuel Return Hose Last?
Most of the older cars on the market have a carburetor that helps to disperse the fuel that is need during the combustion process. While these carburetors are very reliable, there...
How to Tune and Adjust Your Carburetor
While all modern cars use computer-controlled fuel distribution systems, there are still many vehicles on the road that employ the traditional carbureted method of fuel delivery. Before electronically controlled fuel systems were developed,...
How to Check the Choke on a Carbureted Engine
The choke is a plate in the carburetor that opens and closes to allow more or less air into the engine. Similar to the throttle, the choke plate rotates from a horizontal to...
How Does the Carburetor Work Within the Fuel System?
The carburetor is responsible for mixing gasoline and air together in just the right amounts and getting that mixture into the cylinders. Though they are not found in new cars, carburetors have delivered fuel into...
How Does the Fuel System Work in a Modern Car?
Cars have evolved a staggering amount over the last decade, and the biggest issue that manufacturers addressed with those advancements involves the amount of fuel used by the engine. Consequently, the fuel systems found...
How to Replace a Carburetor on Most Cars
A carburetor replacement involves the air cleaner, vacuum hose, car fuel line, and a number of other parts. This complex procedure varies by vehicle.
How to Buy a Good Quality Accelerator Pump
Nestled down in the carburetor’s fuel bowl is a little pump that provides extra sprays of needed fuel in situations like starting the car or passing on the highway. Fuel-injected vehicles do not need...
How to Buy a Good Quality Carburetor
Vehicles are now manufactured using a fuel injection system in order to provide the engine with the proper fuel-air mixture. Prior to the 1980s, however, carburetors performed this task. The carburetor is...
How to Buy a Good Quality Fuel Injector
Getting fuel directly to an engine is accomplished through an electronic fuel injector; with each cylinder getting its own dose of fuel which is much more efficient than the ways carburetors would...

Related questions

Question
What is the prcedure of replacing an accelerator pump on a 73 monte carlo with a 2 BBl
For a carburetor and car of this age I would not recommend just trying to install another accelerator pump in the carburetor. The fuel system in this car was not designed to work with the new fuels in use today...
Question
Choose a carburetor for 454 Chevy engine
Hi there. For the carburetor swap out, you will need to have a least a CFM of 850 or 950 for a big block GM engine. If you are concerned about fuel consumption, then you could do a CFM of...
Question
What would keep the car from using all the gas in the carburetor on a short (6 block) drive?
Hi there. When the carburetor is acting like its flooded, then this condition is called vapor lock. The fuel line may be getting too hot along the engine and causing the fuel to boil inside the fuel line. I recommend...
Question
Can I change my car from full injection to a carburetor?
Hi there. According to the emission department of the government, it is against the law to swap out a fuel injection system for a carburetor due to not getting a computer. If the vehicle was registered as recreational use only...
Question
Carburetor installation costs and adjustment.
Billing question sent to CS for installing and adjusting cost of a carburetor.
Question
Gas in oil
A possible cause of this is the choke in the carburetor is stuck closed or partly closed. That will have the effect of drawing excess gasoline into the engine which will wash down the cylinder walls into the oil. The...
Question
Engine bogs down
Hello there. Many common faults will cause your 1970 Chevrolet 350 engine to bog down. The most common faults are engine running to rich, improperly adjusted throttle linkage, fuel pressure to high, or a vacuum leak. A qualified technician, such...
Question
How to stop gas leakage from going into carburetor
Hi there. The excessive fuel into the carburetor would account for not being able to drive very far and heavily smoking from the exhaust. Two things come to mind, a sunk carburetor float(s) and/or float needle & seat not sealing....
Question
car cranks but doesn't start
This engine will most likely have the old style ignition points and condenser. This type of ignition needs to be replaced every year or 12,000 miles or you will end up having no starts, hard starts or the engine may...
Question
Swapped carburetor and the engine stalls out.
Hi there. When you swap out carburetors on engines, you would have to set up the carburetor and adjust the float bowl along with setting the idle. With a Rodchester Quadra-jet, you would need to have the engine idle at...
Question
I have an engine with a two barrel carburetor. It appears to me the 2nd barrel isn't opening. When and what opens the second barrel?
Hi there. On two barrow carburetors, there are two ways that they open. The most common way is through engine vacuum. When the vacuum drops to near zero, the secondary throttle valve will open and operate the secondary jets. Other...
Question
Hi. I have a problem with my 86 regal. My 307 will shake and smoke a little every morning after the car has sat over night.
Hi there. It sounds like the needle and seat in the carburetor is not sealing off correctly and making the fuel drip over when the engine is sitting. Try pumping the throttle 2 times after you shut the engine off...
Question
Rebuilt 350 engine rebuilt Quadrajet carburetor with new computer. Nothing will connect to the computer, which is effecting my transmission.
Hi there. Check the wiring to the carburetor and see if the choke is coming on or staying off. The computer controlled carburetors are designed to meter the choke and fuel jets. If the wiring to the carburetor has power...
Question
My '65 F-100 lurches only when driven slowly.
Hi there. The symptoms that you are describing lead to the accelerator pump in the carburetor not pumping correctly at low rpm's and low speeds. Try adjusting the carburetor settings to be 100 rpm's higher and turn in the fuel...
Question
On cold start up it idles up to 2800 after a few min i tap the gas and it drops to normal 800 -1000 rpm idle speed
The fast idle speed on your vehicle should be 2100 rpm. The carburetor on your truck has a choke system that will increase the idle when it's cold, to help get the truck up to operating temperature a little more...
Question
I'm trying to replace my carburetor with a Weber and need to know if this is a difficult task? 1987 Honda Accord
Hi there - If you are buying a kit designed for your Accord from a reputable vendor, this is a pretty-straightforward conversion. The Weber 32/36, the basis for most of these conversions is popular, with lots of advice and spare...
Question
Getting fuel, getting spark, and won't start.
Check the ignition timing on the distributor and see if the timing is off. If the timing is good, then the accelerator pump in the carburetor or the fuel injectors are not working properly (if your vehicle has TBI injection)....
Question
Replacing plug on Carburetor
The plug is designed to prevent tampering although you should examine the plug to be sure it is not also intended to prevent the mixture screw from moving once the adjustment is made. If the plug is only "concealing" the...
Question
Can't get high revs from engine. Seems choked
Depending on the HEI system you have you may have a weak coil or the carburetor is running out of fuel at the higher rpms. Use a spark tester to see if the coil is capable of sustaining the spark...
Question
My 86 ford ranger 2.0 single barrel carb . runs great . dies when let off gas .when turn throttle up on carb idles to high .
This problem is usually caused by the throttle damper out of adjustment on the carburetor that will cause the idle to be too low when you let off the throttle. It is supposed to lower the throttle slow instead of...

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