Replacement of the filter 2nd generation Lovato

Owners of cars with installed gas cylinder equipment often underestimate the importance of timely replacement of consumables, in particular filter elements. Gas filter In the second generation system, it plays a critical role, protecting the evaporator and mixer from mechanical impurities, oily fractions and corrosion products contained in the fuel. Ignoring this assembly can lead to unstable engine operation, increased gas consumption and, ultimately, expensive repair of gear valves.

Systems Lovato They have proven to be reliable and easy to maintain designs, but even they require regular attention. Replacing the filter is a procedure that any motorist with a minimum set of tools and basic knowledge of the HBO device is technically capable of performing. It is important to understand that timely prevention is much cheaper than eliminating the consequences of getting dirt into the gas main.

In this article, we will analyze in detail the process of replacing the filter element for second-generation equipment, consider the types of filters, their location and nuances, which are silent in service books. Proper installation It guarantees stable traction and economy of your car in all driving modes.

The role and principle of the filter in the 2nd generation

Unlike more modern 4th generation systems, where fuel is supplied in a liquid phase under high pressure through injectors, the second generation operates on the principle of dilution (vacuum). The gas from the balloon passes through the gearbox, where it evaporates, and then mixes with the air. A filter in this chain is usually installed in front of the gearbox or directly into the gas supply line to purify the propane-butane mixture before it enters the sensitive membrane mechanisms.

The main task of the filter element is to retain solid particles that can form in the cylinder due to poor-quality fuel or corrosion of the walls. If the filter is clogged, the throughput of the highway falls, which leads to a "starvation" of the engine at high revs. Gas pressure before the gearbox becomes unstable, and the engine begins to stall or switch to gasoline for no apparent reason.

In addition, the gas may contain oily impurities that over time are able to dissolve rubber seals. A high-quality filter separator, often used in systems LovatoIt is able to delay the liquid fraction, preventing it from entering the gearbox. This is especially true in winter, when the composition of the gas changes and the number of heavy fractions increases.

• 🛡️ Reduction protection: prevents clogging of channels and sticking of valves inside the evaporator.
• ⛽ Flow stabilization: ensures uniform gas supply to the mixer dispenser.
• 🧹 Cleaning for impurities: Detains rust, dirt and oily inclusions from the balloon.

It is worth noting that the design of the filter can vary. In some cases, it is a simple cylindrical cartridge in a metal or plastic case, in others - more complex models with a sump. For systems Lovato The second generation is most often used standard threaded filters, which are easy to find on sale.

⚠️ Note: If after refueling at a new gas station the car began to stall at idle speeds, first of all check the condition of the gas filter. The likelihood of being filled with dirty fuel is extremely high.

Signs of pollution and replacement time

Determine that the filter HBO requires replacement, you can by a number of indirect signs that are manifested in the behavior of the car. The engine is the best indicator of the state of the fuel system. If you notice that the car has become worse to start on gas or spontaneously switch to gasoline, this is the first bell. Filter clogging It creates a resistance to the flow of gas that a 2nd generation vacuum engine cannot overcome.

The replacement rules depend on the quality of the fuel used and the mileage. Under ideal conditions, it is recommended to change the filter every 10-15 thousand kilometers. However, the realities of domestic refueling make their own adjustments. After each refueling at a doubtful station, the resource of the filter element can be reduced by several times. Visual inspection can also provide answers: if the filter body is transparent, you will see blackening of the filler.

Another symptom is a drop in power. The car stops "pulling" at high speeds, acceleration becomes sluggish. This is because when the throttle is opened, the need for fuel increases, and the filter does not physically pass the desired volume of gas. In systems Lovato With their simple design, this is felt especially acutely, since there is no electronics to compensate for the lack of fuel corrections.

The dirt that passed through the old filter settles on the membrane of the gearbox, reducing its sensitivity. Recovery of the gearbox is a complex procedure and not always effective, it is easier and cheaper to regularly change consumables.

Required tools and materials

Before starting work, the workplace and tools must be prepared. Replacement of the HBO filter is a procedure associated with flammable gas, therefore, requires accuracy and compliance with safety precautions. You don’t need a sophisticated diagnostic scanner or special tool, just a basic set of motorists.

First, make sure you have a new filtering element on hand. For systems Lovato The second generation of filters with threaded connection or filters-sludges are often used. It is advisable to purchase original components or quality analogues from well-known brands, such as: OMVL or BRCwhich have compatible landing dimensions.

You will also need the following tools:

• 🔧 Wrench kit: to unscrew the mounting of the filter body and fittings.
• 🛢️ Condensate discharge capacity: a small plate or rag, as oil may leak out when removed.
• 🧤 Protective gloves: gas at the exit is very cooled and can leave a burn, and also soils the hands.

Don’t forget to prepare a soap solution in the spray gun. It will be needed to check the tightness of the connections after installing a new filter. Gas leakage Inadmissible, even microscopic, so quality control of the assembly is mandatory.

Step-by-step instructions for replacing the filter

Filter replacement process in 2 generation HBO system Lovato It is quite simple, but requires strict adherence to the sequence of actions. Violation of the algorithm can lead to injuries or incorrect operation of the system in the future. Start working only on a cooled engine and in a well-ventilated room or on the street.

The first step is to cut off the gas supply. Find the multivalve on the cylinder (usually in the trunk or under the bottom) and turn the valve clockwise. After that, start the car and let it run on gas until the fuel is fully generated in the highway. The engine must shut down on its own. This is a critical step to reduce the pressure in the system to atmospheric pressure.

We follow the instructions:

1. Open the hood and find the gas filter. In 2nd generation systems, it is usually located in the under-hood space, on the path of the tube from the gearbox to the mixer, or directly in front of the gearbox.
2. Using the key, carefully unscrew the filter body. Be prepared for the fact that a small amount of oily condensate may leak out of there.
3. If the filter is collapsible, remove the old cartridge, wipe the case with clean rags and install a new element. Pay attention to the direction of flow indicated by the arrow on the body.
4. If the filter is non-collectible (all metal or plastic), simply replace it with a new one.
5. Turn a new filter or assemble the body. Do not pull the thread so as not to damage the sealing rings.

After installation, open the valve on the cylinder. Immediately treat the places of connections with a soap solution. The appearance of bubbles indicates a leak. If everything is dry, you can start the engine. At first, the engine can work unevenly until the air that got into the system when replacing.

⚠️ Warning: Never smoke or use an open fire in the vicinity of your vehicle while working with gas equipment. Gas vapors are heavier than air and can accumulate in the lower part of the car.

Filters and Compatibility Table

On the market of auto parts there are many modifications of filters for HBO. For systems Lovato The second generation is important to choose an element with the right bandwidth and threading. The filters are divided into liquid and gas phases. In the 2nd generation, gas phase filters are most often used, installed after the gearbox, but there are also options for installation in front of it.

The material of the body also matters. Metal filters are more durable and better able to withstand temperature changes, while plastic filters are convenient for visual pollution control, but can crack with time and exposure to aggressive fuel components. Capacity Another important parameter: too dense filter will "strangle" the engine at high speeds.

Below is a table to help you navigate the main types of filters used in 2nd generation systems:

Type of filter	Case material	Place of installation	Resource (km)
Cylindrical cartridge	Aluminum/Plastic	After the gearbox.	10 000 - 15 000
Sludge filter	Metal	Before the gearbox.	20 000 - 30 000
Universal threaded	brass	Breaking the highway	10 000 - 12 000
Fine cleaning filter	Transparent plastic	Before the mixer	5 000 - 8 000

Can I wash the old filter?

Theoretically, a metal mesh filter can be washed with gasoline and blown with compressed air. However, paper or synthetic fillers are not subject to restoration. Given the low cost of a new element, washing the old one is often impractical and risky for the engine.

When choosing, pay attention to the brand. Original filters Lovato ensure compliance with the declared characteristics. Analogs may have a smaller filter surface area, which will result in a rapid pressure drop.

Diagnostics and adjustments after replacement

After the filter is replaced, the system may require a small adjustment. In the 2nd generation HBO, the setting is carried out mechanically through the adjustment of the sensitivity of the gearbox and the position of the dispenser (great screw). If after the replacement the machine began to work worse, the balance of the mixture may have been disturbed.

For diagnosis, use the following method. Warm up the engine to operating temperature on gasoline, then switch to gas. Let the motor run at idle speeds. If the speeds float or the engine stalls, you need to twist the sensitivity screw on the gearbox. Adjustment is made carefully, a quarter of the turn, with pauses to stabilize the work.

It is also worth checking the behavior of the car under load. Open the throttle abruptly. If the engine "choked", perhaps the filter is still not clean enough (if used) or selected incorrectly, or you need to open a screw of the amount of gas on the dispenser. In systems Lovato This screw is usually located on the mixer itself, where the air enters.

Do not forget that high-quality HBO is not only savings, but also safety. Regular replacement of filters prolongs the life of the gearbox and saves the engine life. The simplicity of the 2nd generation design allows you to service it yourself, saving on the services of the service station.

How often should I change the filter if the car is in the garage?

Even if the car is idle, it is recommended to change the HBO filter at least once a year. Over time, the materials of the filter element can degrade, and condensate may form in the cylinder, which will enter the system when started.

Why did the filter drop after the replacement?

This may be due to the installation of a filter with too high a cleaning degree (low throughput) or improper assembly (the hose is squeezed, the valve is not fully open). Also check if the installation direction is confused if there is a flow arrow on the case.

Can I drive without a gas filter?

In the short term, yes, the system will work. However, this is a direct way to clogging the gearbox and mixer. Fine dust and scale will quickly disable membranes and valves, the repair of which will cost tens of times more than the cost of the filter.