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Air drawn into the engine by the downward motion of the piston causes a vacuum as the air passes through the carburetor's venturi.
There are mainly 2 circuits:
The (idle circuit) delivers the fuel when the throttle is closed/mostly closed.
The (main circuit) delivers the fuel when off idle/normal driving.
The jets size controls how much fuel is sucked into the motor (controlling the air/fuel ratio, Ideally at 14.3:1).
There is a choke on most (street) carburetors that block air flow through the venturi causing the air/fuel ratio richen up, making cold starts easier.
There is a (power circuit) that allows a richer air/fuel ratio at wide open throttle, usually operated when the vacuum drops. Some carburetors use a stepped metering rod to control this function. A slightly richer air/fuel ratio( approx 12:1) creates more power.
An accelerator pump is used to force fuel through the jet when the throttles are quickly opened to prevent a lean condition (which normally causes the engine to stumble).
The main reason carburetors were replaced by fuel injection is that the transition between idle/main/power/accel pump is slower and not as accurate as EFI, causing emission to be higher and fuel economy to be lower.
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Does an 1989 Crown Victoria LTD police car have a 351 engine?
yes. the 1989 Ford LTD Crown Victoria has a carbeurated 351. the biggest difference between the 351 Interceptor Engines and the 302 Windsors were the INterceptor was carbeurated not fueal injected.
Have a 1992 3.1 v6 engine with 5 speed trans will a 305 work with this manual transmission?
it will work but u have to make sure if u have a fuel injection system that u get a fuel injected 305 or if u have a carbeurated engine that u get a carb 305 or else it won't match up
What do you need to do to put 350 4 bolt main carbeurated in your 94 z28?
You will have to remove the fuel pump from the fuel tank. Then the next problem will be that the transmission that's in it now will not work right because it is computer controled and with your new engine none of the electronics / computer items / sensers will work on the old 350 engine.
What causes too much gas in one cylinder?
Is it fuel in jected or carbeurated
How to replace v6 with v8 for 91 camaro?
well just changing it if the current engine is carbeurated u need a carbeurated v8 if it's fuel injected v6 u need a fuel injected v8 to match the bolt patterns on the transmissions right then u need to invest in a new rear end and motor mounts to handle the power increase as far as removing it I'm sure someone else on here can tell u the specifics better than i can
Why does my jeep Cherokee die when i get moving out of my driveway and stall when i slow down for a stop sign.?
it sounds like you have an air leak. start up the engine, spray carbeurator cleaner around the intake and any vacuum lines and see if it dies or revs up when you hit a certain spot. avoid hitting the exhaust manifolds if engine is hot. if that does not work then open your throttle valve and check it for excessive carbon buildup. if it is carbeurated then you may have internal float problems.
Does the 2008 Honda Shadow VT750C2 have an OBD 2 port and if so where is it?
No it does not. The VT750C2 07' and 08' are carbeurated not fuel injected, so there is no computer.
How does the engine of the bugatti veyron work?
that the engine has nitro power which goes to the engine. when the engine receives the signal the engine starts to work
Fuel pump located on 1990 Chevy caprice350?
If it is fuel injected, then it's in the gas tank as aan assembly with the fuel sending unit. If carbeurated, then on the engine block, as in the old days. much less expensive and easier to do. Fuel injected is a "pain in the you know what", and up to 10 times more expensive.
How much would it cost to change an automatic 96 z28 to a manual And would it be worth it?
The minimum labor be atleast a grand not to mention the cost of the manual transmission if you get the right type because you can't match a manual transmission that went to a carbeurated engine to a fuel injected engine without an adapter plate which would alone cost atleast 500 bucks so no it's not really worth it at all in my opinion.
What in a automobile engine serves no purpose but without it the engine does not work?
Noise. Without noise, it can't work. Noise is in an engine, and without it does not work. Every engine has to make some kind of noise, internal or external, inside or outside the engine.
When changing an engine out in a Chevrolet does the computer for the truck that works for a 350 engine work on a 305 engine?
yes. it should work fine.
