Oka Fuel Consumption How to Adjust the Carburetor • Carburetor repair on Oka

Adjusting the float mechanism of the carburetor VAZ "OKA" 1111 1988-2008

Adjusting the float mechanism is one of the most important carburetor maintenance operations. If this mechanism does not work smoothly or does not provide the optimal fuel level in the float chamber, it will not be possible to achieve normal operation of the remaining carburetor systems even if they are in full working order.

The fuel level in the float chamber affects the parameters of all carburetor systems. Exceeding the optimal level increases fuel consumption, impairs the starting and operation of a warm engine. If the level is too low, engine power is reduced, cold starting is difficult and jerks appear when accelerating the car.

Adjust the fuel level with the carburetor cover installed on the car removed.

You will need: two screwdrivers (flat-blade and Phillips-blade), an 8-point wrench, a caliper with a depth gauge shank.

1. If the work is being performed as part of vehicle maintenance, remove the air filter (see "Removing and installing the air filter").

2. Using the pull rod of the manual pumping lever of the fuel pump, fill the float chamber with gasoline until the fuel valve closes and the level stabilizes (at this moment the force on the manual pumping rod will sharply decrease).

3. Loosen the fuel supply hose clamp and remove the hose from the carburetor fitting.

Cover the end of the hose with a large rag, since the gasoline in it is under pressure and will splash heavily when the hose is removed.

4. Disconnect the choke rod from the carburetor (see “Replacing the choke rod”).

5. Remove the five screws securing the carburetor cover and remove the cover.

Be careful not to lose the screws; they fall out easily when you turn the cover over.

6. Carefully remove the cover gasket.

7. Using the shank of a caliper, measure the distance from the fuel level to the upper plane of the float chamber. It should be 22–23 mm.

8. If the level is higher than normal, use a screwdriver to carefully bend the tongue of the float bracket upward, holding the float.

9. If the level is below normal, bend the tab down. To check the newly established level, pump out some of the gasoline from the float chamber with a rubber bulb, replace the carburetor cover, connect the fuel supply hose and refill the float chamber with gasoline using the pull rod of the manual pump lever. Remove the carburetor cap again and measure the fuel level.

Settings

The carburetor on an OKA car is a slightly modified and modified mechanism from the “classic”, which is designed specifically for placement in the VAZ 11113 engine, and also has a solenoid valve and jets adapted for small displacement.

The carburetor under the hood is located transversely, not as is customary in other cars, so when making a quick left turn, fuel can escape from the jets, which leads to failures in the engine.

The carburetor setting is designed to solve this problem, the main task of which is to regulate the level of gasoline in the chambers. To do this, you need to set a distance of 2.2 cm from the gasket at the top of the carburetor, as this value is recommended by the manufacturer. It is impossible to carry out such an operation without removing that very cover.

Setting up the Oka carburetor

Special attention should be paid to this issue on an OKA car, since too much fuel will lead to “flooding” with gasoline. The fuel should be slightly lower than the economizer tube. Otherwise, an enriched mixture will constantly occur, the spark plugs will flood, and the engine will sooner or later fail. In order to prevent unpleasant situations with turns, a special economizer is used.

Adjusting the carburetor is primarily about adjusting the operation of the jets. This procedure must be carried out only on a fully running engine, otherwise its effect is reduced. It is necessary to adjust the carburetor so that a level of 1.5 turns is ensured from the moment of greatest depletion of the emulsion. On an OKA car this is done by twisting the quality screw. Further, depending on the speed, adjustments are made.

It is also necessary to adjust the amount of fuel supplied using a special screw. This device must be turned until the moment when stable and smooth operation of the engine occurs on OKE.

Low speeds are set so that the carburetor works smoothly and does not stall. In this case, you must first turn on all electrical equipment. Correctly setting the carburetor allows you to achieve gasoline consumption of up to 6 liters in the city in an OKA car.

Features of the VAZ-11113 carburetor, design and adjustment

If the carburetor floods, the cause of the problem is most likely not related to the adjustment, but to a loose fit of the locking needle to the seat, and in this case the locking mechanism in the PC will need to be replaced. P Anticipating, I can briefly answer the following: Average summer consumption, with an average load of about 60 kg except for the driver, on summer road tires, using AI-92 gasoline, in the city, when 40 times the tachometer rarely drops below 3000 rpm, 30 - phlegmatically driving in general traffic, 30 waiting for this damn traffic jam to clear up, with a rack permanently screwed to the roof, 80 in the daytime, with an average non-stop distance of 5-10 km, it ranges from 5.2 to 6.5 liters per 100 km.

Overfills the carburetor

Often on the Oka a situation arises when the carburetor floods; with such a malfunction it is usually very difficult to start the car, and in other cases the engine does not start at all. There may be several reasons for the problem:

• does not hold the needle valve;
• the fuel pump creates too much fuel pressure (if a return line is not installed);
• the level in the PC is set incorrectly (more than normal);
• The float is not sealed.

Finding the cause of the defect usually begins with inspecting the parts of the float chamber, and if there is significant overflow and smells of gasoline, first of all you should pay attention to the locking mechanism.

Design. Device repair

Adjusting the gasoline level Oka 11113 • Inspect the float and its mounting parts.

Lada Oka 1996, 75 l. With. - spare parts

Cars for sale

Lada 1111 Oka, 2003

Lada 1111 Oka, 1995

Lada 1111 Oka, 2002

Lada 1111 Oka, 2007

Comments 20

When it gets shy, if you connect the wire, the car starts to stall. I have something to do, it doesn’t bother me when you tighten the key 14, the car stalls when you rev ​​it up, the car picks up speed

I had the same garbage, I did it, I replaced it)

I pulled out the needle there and there were no more problems

You can’t do this, it will eat more, and the electric valve will be of no use.

Guys, hi. I wanted to ask about the topic. Will the EMK from VAZ2108 fit a Okushny carburetor?

yes to the end, just don’t break the thread. And there should be a whole rubber band there

Wow, the gas is really burning, I have this problem again, this is the second time, do I really need to tighten it all the way?

I also once had a jerking car, the problem was in the transition system of the carburetor... And what did the specialist tell you that it was in the solenoid valve - this is complete nonsense, I don’t believe this specialist! THEY JUST WANT TO CUT THE BUBBLE AND THAT'S ALL!

Your solenoid valve must be fully tightened for the car to idle well! And if it is not tightened well, then you will have an air leak and because of this, there will be increased fuel consumption!

I made jerks, I don’t know, but they told me that I needed to tighten it a little

in the solenoid valve, we adjusted it, now I’m proud of my machine, how the clock works, thanks to everyone who gave advice =)))

The solenoid valve, if I'm not mistaken, affects the idle speed and that's it!

So, yes, and what kind of adjustment could there be? It is either screwed in or unscrewed))).

The power units of the Oka car 1111 and 11113 were equipped with a carburetor power system. Now such a system is outdated and not used, but at the time of the start of production it was a priority; injectors were not used on domestic cars of those years of production.

But the designers took the DAAZ-2108-1107010 from the Eight (aka Solex) as a base and based on it they created the DAAZ-1111-1107010, which was installed on the Oka.

It is noteworthy that when creating the Oka carburetor, not only Solex was used; some design solutions were also borrowed from Weber and Ozone carburetors.

The VAZ-11113 carburetor is similar in general construction principle to the Solex from the VAZ-2108, but there are some features, for example, in the Oka unit on the body there are two plugs, by removing which you can get to the fuel jets without disassembling the carburetor itself .

How to adjust the carburetor "Oka" 11113

When performing all these operations, one nuance must be taken into account: when removing and installing the carburetor cover 11113, the shut-off needle falls out of it; removal must be done carefully so as not to lose the part, but installed by creating a vacuum (for example, using a rubber bulb, due to vacuum the needle holds and does not fall).

Video: performing repair work on the DAAZ-1111 with your own hands

The specificity of the structure of the cavities of the DAAZ-1111 carburetor is that exhaust gases are not removed immediately, but gradually. That is, the engine unit is forced to experience some difficulties when operating at high speeds. In addition, the entire design of the DAAZ-1111 does not prevent lubricating fluids from entering the carburetor, which can quickly lead to its contamination.

If the ignition system operates without interruption, the following malfunctions may occur on the Oka carburetor:

instability of the engine unit (this may be due to carbon deposits on the fuel nozzles or malfunctions of the economizer);

incorrect operation of the gas pedal while driving (the nozzle holes are clogged);

deterioration in the dynamic qualities of the car occurs due to a critical decrease in the fuel level in the float chamber - the engine simply does not have enough fuel to fully operate at high speeds;

jerks during movement indicate that carbon deposits have formed in the float chamber, therefore the normal movement of fuel in the system is disrupted;

instability of revolutions indicates that the carburetor trigger needs to be adjusted.

However, the main sign that indicates a malfunction of the carburetor can be considered a sharp increase in fuel consumption.

about the solenoid valve

Colleagues, The question is very simple, but I don’t understand it.
The other day I decided that the solenoid valve on my carburetor was not working (sometimes detonation appeared in the muffler area when the engine was turned off). I stopped at the store to buy a new solenoid valve. The seller told me that they come with short and long threads, I unscrewed mine (with the short one), he gave me a new one (checked it for operation). I installed a new one and went. I won’t tell you the details - it doesn’t hold idle. I changed it back and installed the old one. Then, upon arriving home, I began to figure out what was going on. I checked that voltage is supplied to the solenoid valve when the ignition is turned on, I hear the sound of operation on the new one, but it still does not hold idle. So I'm going with the old one. What could be going on here? After all, the solenoid valve cannot work well or poorly, it either works or it doesn’t. And if it is faulty, then it will either always be open or closed.. And no adjustments are provided for it.

Thank you. in advance for clarifications

Re: about the same problem. > If it's the valve, of course.

It's clear what's in it. Everything else works.

Same bullshit by the way. For now I have forgotten and am driving the old one. I'll go through the carb and figure this out at the same time. But it seems to me that the new valve shuts off fuel to the XX system