How to reduce fuel flow to a carburetor

❶ How to adjust the Ozone carburetor

You will need

- screwdriver;
— a device for measuring CO;
— new plug;
- screws on the quality and quantity of the mixture.

Instructions

First check the spark plugs, since tuning the Ozone carburetor can only be done with working spark plugs. Then start warming up the car engine until the coolant temperature is at least 80 degrees Celsius.

Then open the carburetor choke completely and immediately install the adjusting screws. When installing them, you need to tighten the quality screw all the way, and then unscrew it two turns. Then you need to turn the mixture amount screw literally one and a half turns from the position at which the lever begins to operate. Pay attention to this lever, because... The throttle valve is attached specifically to the axle.

Set the crankshaft to the lowest possible speed, but you will need to remove the screw if it is in an arbitrary position. Then turn the screw in the required direction so that you can set the maximum crankshaft speed. Do not move the throttle while doing this.

Then again set the crankshaft to the minimum speed while turning the stop screw. In this case, the frequency should be as stable as possible. Usually, after two or three of these steps, you will be able to find a screw position that is ideal for your machine. This position will provide the required quantity and quality of the mixture, which will lead to the most economical operation of the engine, as well as low fuel consumption.

See how clearly you managed to adjust the mechanisms. Make a sharp closing and opening of the throttle valve. If the engine continues to run, then you have made the correct carburetor adjustment. If this does not happen, then repeat the setup again. And do not forget to install a new plug after adjustment so that the settings you made do not go astray.

Sources:

Adjusting the Solex/Ozone carburetor in VAZ 2105, 2106, 2107

www.kakprosto.ru

Adjusting idle speed

First you need to make sure that the ignition is adjusted correctly.

To do this, the engine must already be sufficiently warmed up. To adjust the carburetor at idle, turn the quality screw. The crankshaft speed should reach its maximum value.

Then turn the quantity screw in a counterclockwise direction. Try to get the crankshaft to spin further. Have you achieved it? Now turn the quality screw until you reach even higher levels.

The point of all this is the minimum quality of the fuel emulsion, but so that the idle speed is from 850 to 900.

This is how the DAAZ carburetor is adjusted.

Carburetor adjustment Ozone 2107

The functional purpose of the carburetor in general, and the Ozone model installed on the VAZ seventh model in particular, is to prepare a combustible mixture (air plus automobile fuel) and dose it into the combustion chamber of the power unit cylinders. Regulating the amount of automobile fuel injected into the air flow is a fairly important function that determines the optimal operating modes of the automobile engine and its long overhaul and operational periods.

Ozone carburetor design

The Ozone carburetor, the design of which will be discussed below, is a factory option for equipping cars of the Volzhsky Automobile Plant of the seventh model. The design basis for this carburetor model, created in 1979, was the “Weber” product developed by Italian automakers. However, in comparison, Ozone has significantly improved such important performance indicators as efficiency and minimizing the level of toxic gases emitted into the atmosphere.

The first generation Ozone carburetors (1979-1981) were equipped with a mechanical damper drive, which was later replaced with a pneumatic one.

So, the Ozone emulsion carburetor is a two-chamber product characterized by the following design features:

The presence of two main dosing systems.
Excellent balance of the float chamber (item 2).
Equipping the second chamber with an econostat (enrichment device).
The presence of transition systems between chambers and an autonomous idle system with a solenoid valve.
Equipping the air damper of the first chamber with a mechanical control system with a cable drive.
Equipping the first chamber with an accelerator pump (item 13) with a sprayer.
Availability of a gas exhaust device.
Equipping the product with a pneumatic drive (item 39) of the valve (throttle) of the second chamber.
Equipment with a device that opens the throttle at the moment the engine starts, having a diaphragm.
The presence of a fitting that determines the selection of vacuum that occurs during the control of the ignition timing regulator.

The structural elements of the Ozone carburetor are enclosed in a massive metal body, characterized by an increased level of strength, which allows minimizing the effects of deformation, temperature fluctuations and mechanical damage.

The solid diameter of the fuel jets ensures stable operation of the product even when using low-quality fuel and under difficult operating conditions. One of the main design flaws of the Ozone carburetor is the absence of an economizer for power modes, which causes low dynamic characteristics and low efficiency.

Operating principle of Ozone carburetors

The principle of operation of the carburetor produced by the Dimitrovgrad Automobile Unit Plant (DAAZ) can be described by the following provisions:

The fuel supply device ensures that it (fuel) flows through a filter mesh and a needle valve that determines the filling level of the float chamber.
The first and second chambers are filled with fuel coming from the float chamber through the main fuel jets. In emulsion wells and tubes, gasoline is mixed with air coming from the corresponding jets. The finished combustible mixture (emulsion) flows through sprayers into diffusers.
After starting the power unit, the shut-off solenoid valve closes the “idle” channel.
In the “idle” mode, gasoline is selected from the first chamber and its further movement through a nozzle connected to an electromagnetic lock. As fuel passes through the idle jet and the compartments of the transition system of the 1st chamber, gasoline is mixed with air. Next, the combustible mixture enters the pipeline.
At the moment of partial opening of the throttle valves, the air-fuel mixture enters the chambers (using the holes in the transition system).
Passing through the econostat, the fuel mixture enters the nozzle from the float chamber. In maximum power mode, a device that enriches the emulsion is switched on.
The ball valve of the accelerator pump opens when it is filled with the fuel mixture. The valve closes (under the influence of its own weight) when the fuel supply stops.

Video - Do-it-yourself adjustment of the Ozone carburetor

Work on adjusting the Ozone carburetor is carried out not only when it (the carburetor) is not operating correctly, but also in the event of repairs that involve replacing some elements of this unit. Let us consider in more detail the list of settings that are a mandatory continuation of repair and restoration work.

Replacing the rod with the diaphragm or the valve (throttle) drive of the second chamber requires adjustment of the pneumatic drive.
After replacing the elements of the starting device, it is configured.
The reasons for adjusting the “idle speed” system, along with disruptions in the functioning of the power unit, is to prepare the car for a technical inspection.
Replacing a float or needle valve requires adjusting the fuel level in the chamber (float chamber).

vipwash.ru

OZONE carburetor adjustment for optimal fuel consumption

23.06.2017

Adjusting the Ozone carburetor is necessary for every VAZ; if the correct adjustment is not made, the car will consume more fuel, and this is not very pleasant. Despite the fact that the OZONE carburetor is generally not bad, it undergoes quality control at the factory, but it will still have to be adjusted.

Moreover, this carburetor is mass produced and there may be some nuances that require individual tuning. There is nothing complicated in adjusting the OZONE carburetor, so let’s talk about it now. This, of course, applies to VAZs that run on gasoline, but those who have diesel cars do not face this problem; they have other problems associated with purchasing diesel fuel in large quantities and at competitive prices. You can buy diesel at competitive prices here.

What you need to know to adjust the carburetor

The main thing is to do everything in the correct sequence so that you don’t have to do the work again; first you need to go through these steps:

clean the radiator housing;
adjust the throttle and air damper drives;
adjust the starting device;
on the throttle valve of the 2nd chamber, adjust the pneumatic drive;
adjust idle speed;
reduce the toxicity of exhaust gases.

And so on in order, to clean the carburetor body, you need to use mixtures in aerosol cans, you can also just take white spirit or kerosene. To ensure that nothing interferes with thorough cleaning, you need to remove the air filter.

Next, check the length of the throttle valve drive rods. Its normal length should not exceed 80 mm. If necessary, unscrew the nut on the end of the rod and make the length 80 mm. or a little less. If in chamber 1 the damper is not fully open when the gas pedal is pressed, and the lever has additional travel, then it makes sense to reduce the length of the longitudinal rod. You also need to tighten the drive cable if it is loose.

The air damper should be positioned exactly vertically with the drive handle fully recessed into the car interior. If you pull the handle all the way, the damper will completely close the displacement chamber. If this condition is not met, then the drive will have to be adjusted.

To adjust the starting device, you need to rotate the adjusting screw with a slotted screwdriver until the crankshaft speed is established within 3000 rpm. If you change the diaphragm of the pneumatic drive of the 2nd chamber damper, then you need to adjust the length of the rod.

To adjust the XX system, you need to use the quality and quantity screws that are located on the right side of the carburetor compartment.

Adjustments must be made with the engine turned off in this order:

tighten the quality screw all the way, then unscrew it exactly 5 turns;
also tighten the quantity screw until it stops, and then unscrew it 3 turns;
turn on the engine;
set the quantity screw to 800 rpm;
tighten the quality screw until the motor becomes unstable;
unscrew the quality screw back so that the speed stabilizes.

It will also be interesting: Ideas for modern tuning of the VAZ 2108 in simple language

Common problems with the Ozone carburetor

If the carburetor is not cleaned periodically and the performance characteristics are not observed at all, this will lead to a deterioration in its performance, which will have a detrimental effect on fuel consumption and vehicle dynamics.

But any problems with the carburetor can be fixed even with your own hands; mainly there are the following problems:

the diaphragm of the starting device is out of order;
the needle valve is stuck;
drives fail;
The accelerator pump diaphragm becomes unusable.

This is where all possible malfunctions end; in general, the carburetor is quite unpretentious and if it is properly maintained, it will not bring any special problems to its owner.

And then a video with a complete guide on how to properly adjust the OZONE carburetor:

You can also read on this topic:

auto-cool.com

Adjusting the starting system

The procedure is performed according to the crankshaft rotation speed on a carburetor, which is not removed from the vehicle, or according to the gaps at the flap edges on a mechanism that is previously removed from the vehicle.

How to adjust carburetor speed:

the air filter is removed, and the element that controls the damper (in motorist slang it is called a “choke”) is pulled out all the way;
the engine warms up, use a screwdriver to open the damper 1/3 turn;
the throttle linkage bends to approximately 3400 rpm;
then it lowers, the frequency is set 300–400 revolutions lower than the set one.

The carburetor is adjusted according to the gaps by bending and straightening the rod, which connects the two levers. The first is located on the damper, the other is on the control panel. The rod should be bent to reduce the gap and straightened to increase it. A gap of 5–5.5 mm in the lower part of the air valve and 0.7–0.9 mm in the upper part of the throttle valve indicates that the adjustment was made correctly.

OZONE carburetor: device, repair, adjustment :: SYL.ru

The automotive industry is thriving - new types like electric vehicles and hybrids are being invented, production of models is being established, etc. But this does not negate the fact that, figuratively speaking, outdated technologies remain on the roads, and therefore in the hands of motorists. They may not be bad at all, but you won’t have any problems with them anyway. At least because of its venerable age for a complex mechanism.

Carburetor OZONE

This article will focus on this device. Along with other standard carburetors like Solex or Weber, OZONE was often installed on domestic cars. The operating principle of all three is the same, and much depends on its type, and not on the name of the plant.

The latter can be one of three - float, bubbler or needle. The second is used extremely rarely, and in most countries it has simply been discontinued, but the latter still works in some places, but not in such quantities. The object in question belongs to the first type, which is still quite popular.

Carburetor design

Consider the OZONE carburetor. 2107 - it is on this VAZ model that it can be found most often. But you need to know about some modifications that are also put into production.

First of all, this is DAAZ 2107-1107010, which is used most often. That is, this is the same standard OZONE carburetor that you will have to work with. In recent years of production of these models, they began to use such a modification as DAAZ 2107-1107010-20. There is also a model that is not so popular, but it is worth mentioning. This is DAAZ 2107-1107010-10 - everything is, in principle, the same, but the ignition distributor here is designed without the use of a vacuum corrector.

The layout of the components is quite simple - for idle there is an autonomous system and a separate shut-off valve. There is a float chamber, which is mandatory for an OZONE carburetor of this type. A throttle valve and metering system, as well as transition systems for chambers and a gas exhaust compartment are available. Actually, that's all you need to know about the design. If more specific problems arise, you need to go to specialists.

In general, the OZONE carburetor is a device simple enough to bring to life with your own hands.

Subtleties of adjustment

Here you need to adhere to a certain scheme so as not to miss anything and avoid unnecessary hassle. Everything is quite easy to do yourself:

First you need to wash and clean the outside of the OZONE carburetor.
Visually inspect the now clean unit for structural faults.
Clean the strainer.
Clean the float chamber.
Clean the air jets.
Adjust the starting system and idle speed.

As you can see, there are no problems here, except that questions may arise with the last point. Therefore, we need to deal with it separately.

Setting up systems

Start-up must begin by removing the air filter. Next, simply start the engine and pull the choke towards you. Use your hands to open the air damper by a third and raise the rpm to 3200-3600. After which you just need to lower the damper and reduce the number of revolutions by about three hundred.

The idle speed is also quite easy to adjust. The machine must first be warmed up to operating parameters and adjusted to the maximum number of revolutions per minute. This is done using the quality screw, and the quantity screw is not involved in the work. But the latter needs to be tightened up at the next stage - raise the amount by a hundred above the norm. The engine starts, and you use the quality screw to return the speed to normal.

That, in fact, is the whole setup of the OZONE carburetor. There simply shouldn't be any problems.

How to identify possible malfunctions?

The design of the mechanism is not the simplest, and therefore there may be several problems. Naturally, they manifest themselves externally. You can track it using the following indicators:

Failure when the gas pedal is activated with a serious delay.
Jerk in cases of very short failure.
Twitching. These are options with several jerks in a row.
Rocking when there is not one failure, but several.
Sluggish acceleration, if the speed of the latter is seriously behind the usual one.

Other symptoms may also occur. The OZONE carburetor is a somewhat capricious device. Therefore, it may happen that you simply cannot start the engine. Or there will be problems with hot or cold starting. If any difficulties arise at idle, this may also be a sign of a breakdown. Fuel consumption indicators must be monitored: above the norm is not a good sign, as is a difference in the number of revolutions per minute in one direction or another.

The engine does not start. What to do?

There may be several reasons for the problem. First of all, the reason may be fuel or lack thereof. If the level is low, this can cause problems. Also, if the composition of gasoline differs from the usual norm, some problems may occur.

It’s quite easy to check the presence of fluid here - the OZON-2107 carburetor is designed in such a way that you just need to remove the cover from the air filter and turn the throttle valve drive lever several times. Thus, the accelerator pump is activated, and fuel enters the mixing chamber. If nothing happens, it means that for some reason the gasoline simply does not reach.

Dips, jerks and swings

If your car behaves this way under high loads, the problem is often related to fuel supply interruptions. All you need to do is check the system for leaks, as well as all filters installed in it.

In addition, this can also be caused by increased resistance that occurs when fuel passes through the filter. In addition to the obvious blockage, this can also be caused by a poor-quality composition with foreign impurities.

Instead of a conclusion

Only a few major breakdowns are discussed here. In general, repairing an OZONE carburetor does not present any particular difficulties. You can solve everything yourself, even if you don’t have much experience working with internal combustion engines.

If you use a car with such a carburetor, then you just need to carry out regular technical inspections to check the tightness, filters, and operation of all systems. In addition, it doesn’t hurt to adjust the system from time to time - the operating mechanism was discussed in one of the paragraphs above. There should not be any special problems, but if serious difficulties arise, do not spare any expense, contact a specialist. Otherwise, everything can grow into a really serious problem, which will be either very difficult or too expensive to solve. But most often it’s all together. Good luck with the renovation!