Theory and background-
Procedure for Experiment-
Reflection on experiment-
[Do you know how to change a fuel pump?]
http://www.youtube.com/watch?v=1FcJF7HaRlE
^^^ WATCH!! HOW TO CHANGE A FUEL PUMP!!
^^^ WATCH!! HOW TO CHANGE A FUEL PUMP!!
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| Fuel Injection |
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| Fuel Pump |
*Multi-port injection is still widely in use today. So far it's the most efficient method of metering gas into the engine. Multi-port fuel injection, also known as MFI, consists of an injector for each cylinder in the engine. This injector sprays fuel directly through the intake valve or valves into the combustion chamber. Each injector is activated separately by wire. Early versions of this system, such as CIS, Jetronic and Motronic utilized a fuel distributor that metered fuel to the injectors through separate fuel lines. Later versions utilize a single fuel line that connects to a fuel rail on top of the engine. The injectors take gas from the central fuel rail and squirt it into the engine when told to do so.
*A fuel pump is used
to supply fuel to the fuel injection system or carburetor, depending on the year
of the vehicle. Older vehicles use a mechanical pump to deliver low pressure
fuel to the carburetor, while fuel injected vehicles
require an electric pump capable of the high pressures required to make the
system work efficiently. A fuel injection system is more efficient than its
predecessor the carburetor and can better operate in extreme conditions, while
becoming more dependable at start up.
Fuel Safety.
Extreme care should be taken when working with any component of the automotive fuel
system. Petrol is a very volatile and inflammable substance.
- Never expose petrol to a naked flame, spark, or heat.
- Always disconnect the negative terminal of the battery before performing any task that
would release petrol from any part of the system.
- Always use a container to catch any dripping petrol.
- Wipe petrol spills away immediately no matter how minor.
- When extra lighting is required always use a flash light rather than a lead light. Petrol
spilt onto a hot bulb may cause the bulb to explode and ignite the fuel.
- Never attempt to weld a petrol tank.
- Always store fuel (no more than 5 litres) in a sealed marked container.
- Always keep a B class fire extinguisher nearby.
- Use warning signs to ensure other personnel are aware of petrol and fume dangers
when working on the fuel system.
- Avoid skin contact with petrol and other automotive fuels.
- Be careful. Play by the rules.
Fuel Safety.
Extreme care should be taken when working with any component of the automotive fuel
system. Petrol is a very volatile and inflammable substance.
- Never expose petrol to a naked flame, spark, or heat.
- Always disconnect the negative terminal of the battery before performing any task that
would release petrol from any part of the system.
- Always use a container to catch any dripping petrol.
- Wipe petrol spills away immediately no matter how minor.
- When extra lighting is required always use a flash light rather than a lead light. Petrol
spilt onto a hot bulb may cause the bulb to explode and ignite the fuel.
- Never attempt to weld a petrol tank.
- Always store fuel (no more than 5 litres) in a sealed marked container.
- Always keep a B class fire extinguisher nearby.
- Use warning signs to ensure other personnel are aware of petrol and fume dangers
when working on the fuel system.
- Avoid skin contact with petrol and other automotive fuels.
- Be careful. Play by the rules.
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