Tune-up Tricks to Improve Carburettor Efficiency
A clean, well-maintained carburettor can make a world of difference in how your car runs. If your actual gas mileage is lower than what it should be, a dirty carburettor could be the culprit. You need to enable an even, clean fuel flow to maximise efficiency and get the most out of your vehicle. To do this, it helps to take a closer look at the factors that can influence efficiency.
One of the first factors that come into play in an engine is the level of volumetric efficiency. This refers to the percentage of air ingested by an engine in comparison to the maximum capacity of the engine. Tuning the engine to increase the volumetric efficiency can produce more torque, which leads to a heightened performance and better gas mileage.
Another area to look at more closely is the exhaust gas recirculation valve. The job of this part is to clean up the engine, reducing emissions and improving mileage. When an engine is used at a cruising speed, its exhaust gases are recirculated through this valve. This is an area worth having a look at to see if any repairs, tuning, or cleaning is needed.
Cleaning Filters and Carburettor
If you've read a review of Ford Territory by Motoring and have seen the fuel use listed as 9L per 100km, but you're clocking more in the territory of 14L/100 km, it's time to find out what's going on. One easy way to improve your engine's efficiency is to replace dirty air filters and spray the inside of the air filter compartment with carburettor cleaner. This should be wiped carefully to eliminate all dirt and grime, which can hinder engine performance. You can also spray your carburettor with small bursts of cleaner, but take care not to drown it or your engine will cut out. After cleaning the carburettor and air filter compartment, you can replace the filter for improved performance.
Tuning the Carburettor
It's important to insure that you have the right size carburettor for your vehicle, at which point you can take it in for a tune-up. One method for accomplishing this is with a wideband air to fuel ratio meter. This uses an oxygen sensor, which is placed in the exhaust stream while the car is in idle. If the air to fuel ratio isn't where it should be, the idle mixture screws can be adjusted until an ideal reading is achieved. The right ratio will depend on the type of engine your car has and what you use it for. You can use a Motoring car comparison tool to learn more about different types of engines, or simply leave this tune-up in the hands of professionals.
In addition to idle, the engine can also be adjusted to operate at the best air/fuel ratio in a number of other settings. At higher throttle positions, attention should be paid to parts like the power valve channel restrictions, which provide extra fuel when the car needs to work hard. Power valves can also be opened up to optimise performance. Each car will need to be tuned individually to achieve peak performance and efficiency, so these procedures will vary. A full carburettor tune-up will allow your car to run at all speeds with the lowest possible amount of fuel; reducing emissions and improving performance.