Tips for replacing spark plugs on a UAZ Patriot with a Euro 4 engine

UAZ Patriot is a recognized leader among Russian SUVs. Euro 4 engines (ZMZ-409) are excellent solutions for such machines. Motors that are actively used by automobile companies in Europe are now gaining popularity in the CIS countries. They work due to such an important element as candles.

The factory equipment will work without problems until the mark on the odometer exceeds 20,000 km, but only under one condition - the fuel must be of high quality. Otherwise, the part will deform quickly. Gasoline and diesel that meet the standard are very difficult to find. Almost all gas stations dilute the liquid with water and other compounds. It is difficult to provide excellent working conditions for spark plugs, and this is not the driver’s fault; as a result, they quickly fail.

High-quality gasoline is a guarantee of spark plug performance

There are many engine modifications for UAZ and VAZ. Manufacturers produce Euro 4 engines in different solutions. There is no standard manufacturing technology for the part, hence the lack of identical models is understandable. Each company improves its products as it sees fit. Don't get confused when the factory spark plugs wear out and it's time to buy new ones. When choosing a part, it would be good to have some information regarding the design of the engine and the parts on which its functioning directly depends. Competent advice from a salesperson in a store is good. However, who knows your car better than you? All UAZ Patriots are equipped with ZMZ-409 engines. The system is characterized by the following features:

• presence of 4 cylinders;
• operation on gasoline;
• presence of microprocessor injection.

Recommendations are provided in product documents. The optimal type of fuel is Euro 4 gasoline. It is this that allows the mechanisms to operate for a long time. This is the best fuel for such engines, but not the only one. You can also fill the tank with other gasoline. It's all about quality. Other fuels not only cause spark plug failure, but also contribute to disruption of the entire fuel system. The consequences are engine wear.

What happens if you replace the gasoline you need with another brand of fuel? Changes are usually visible immediately:

• the car began to gain speed more slowly;
• candles began to get dirty and burn out faster;
• A tapping sound uncharacteristic of normal operation appeared while accelerating.

Using gasoline appropriate for the ZMZ-409 engine is a key requirement that drivers must fulfill. Otherwise, regular replacements are inevitable.

Specifications

The ZMZ 409 Euro 4 engine has improved technical characteristics compared to its older brother. Thus, the power unit, due to the fact that it was designed on the basis of the 409, received high technical characteristics and endurance.

In addition to the Euro 4 standard, there are a number of modifications that are worth considering:

1. ZMZ 409.10 is the main motor, meets the Euro-2 environmental standard. Power 143 hp
2. ZMZ 40904.10 - analogue of 409.10 with a new CPG, new gaskets, DBP, complies with the Euro-3 environmental standard. Power 128 hp Installed on Patriot, Hunter, Pickup, Cargo.
3. ZMZ 40905.10 - analogue of 40904.10, compliance with the Euro-4 environmental standard. Power 128 hp Installed on Patriot, Hunter, Pickup, Cargo.
4. ZMZ 4091.10 - derated low-end version of ZMZ 40904.10, another receiver, camshafts (lift 8, phase 240), firmware, complies with Euro-3 environmental standard. Used on UAZ loaves. Power 112 hp
5. ZMZ 4092.10 is a non-serial motor. Power 160 hp Used on the Volga.

Choosing spark plugs for the UAZ Patriot engine

The stability and stability of the engines depends on the condition of the devices. Their serviceability directly affects the power, fuel efficiency, and starting properties of the engine. It is very important not to make a mistake with the choice of parts for the ZMZ-409 and its modifications. Signs of quality products are a base made of iridium and platinum alloys. The use of these two materials allows us to produce reliable designs. Such candles are not cheap, however, they quickly pay for themselves. Minimum service life is 60,000 km. Another good option is plasma prechamber products. They have a long list of advantages:

• improved self-cleaning process;
• original design in terms of structure, which makes it possible not to adjust the gap over and over again;
• long service life.

When choosing the required configuration, it is necessary to take into account not only the country of origin and material, but also pay attention to the shape of the thread, the gap, and the length of the model.

For UAZ Patriot, spark plugs are suitable that meet the following parameters:

• Thread dimensions – M14×1.25. Length from 19 mm.
• Availability of built-in resistor.
• The spark gap is 0.7-0.85 mm.

A part with these dimensions is suitable for UAZ Patriot.

For ZMZ-409 engines, A 14 DVR spark plugs or their analogues are used. Why exactly are they quality spark plugs for UAZ Patriot? For a more complete understanding of the essence of the issue, a transcript of the product is presented to you.

• A – diameter, thread pitch. In this case it means M 14×1.25. Hex key size. This design is easy to install to suit any parameters.
• 14 is a capital number. It is an important parameter that determines the characteristics of the temperature regime of the candles.
• D – thread length. In this case it reaches 19 mm.
• B – protrusion of the thermal cone of the insulator. Responsible for accelerating the warm-up of the spark plug after starting the engine.
• P – presence of a built-in resistor. It is needed to reduce the level of interference for radio equipment and the electric motor control unit.

Top 2. NGK BKR5E

Rating (2021): 4.39

The most popular choice NGK BKR5E-11 spark plugs are highly reliable, ideally suited to the UAZ Patriot engine, have a fair price and rarely fail during long-term operation, which is why they have earned high popularity among owners.

• Characteristics

  Average price: 170 rub.

• Country: Japan
• Electrode material: nickel
• Gap, mm: 1.1
• Heat number: 5
• Resource, km: 50000

These Japanese spark plugs are deservedly popular among domestic consumers, as they have proven themselves to be reliable and of high quality. After replacing standard igniters with NGK BKR5E, car owners note more confident, smooth engine operation without interruptions and excessive vibration. The best engine performance is achieved due to stable spark formation and timely ignition of the fuel mixture. Owners of UAZ Patriot who installed these spark plugs note a decrease in gasoline consumption due to efficient combustion. Judging by the reviews, this model always maintains the service life declared by the manufacturer and does not fail in cold weather. You can run into fakes on the market - for this reason, users often order candles in advance, through an official supplier.

Advantages and disadvantages

• Reliable
• Stable spark
• They take you into the cold

• There is a counterfeit

See also:

• 10 best tires for UAZ Patriot

Current solutions from well-known manufacturers

The list of models that are suitable for Euro 4 engines includes about 5-7 of the most optimal options. What brands produce products for the UAZ Patriot? Brisk, Finwhale, NGK, Bosch, Denso, Bugaets. Good solutions for your UAZ Patriot and their brief description:

• Brisk DR17YC is one of the budget models. During operation, slight instability is noticeable, enough for 3000 km.
• NGK BCPR6E is an option that performs well in the initial stages. Price up to 550 rubles.
• BOSCH Platinum Plus FR7DPX are moderate quality candles that last for a long period. Good engine power is noted. The only negative is the difficulty of starting the engine.
• AU 17 DVRM is a configuration that is enough for at least 4,500 km. Spark plugs are used on 16-valve front-wheel drive VAZs. The engine runs great. There are no delays or twitches in the range of 800-5000 rpm. Optimal engine power, stability and throttle response at the bottom are noted.

The products were selected taking into account low cost and moderate performance indicators.

Motor ZMZ 409

Selection of spark plugs for the VAZ 2114
This engine was put on the conveyor in 1996. Today, based on this internal combustion engine, several units with a volume of 2.3 to 2.7 liters are produced. These are installations of models 406 and 405. This included the 409 engine. This engine was mainly installed on new and modern domestic UAZ and GAZ cars. The entire generation of these power plants is equipped with a gas neutralizer and is manufactured entirely in accordance with EURO-2 standards.

Over the course of several years of production, the engines underwent major changes and modifications several times. In 2003, the design of the camshafts was changed. The tensioner shoes made of plastic were replaced by sprockets, which eliminated the problem of failure of hydraulic pushers due to clogging of the engine oil with plastic wear products.

Then, along with the fact that the plant switched to imported components for particularly important engine components, the management conceived of even more serious modifications of its products. The camshaft system was replaced with a simplified unit. This immediately affected reliability. Many other upgrades were also made.

Today Zavolzhsky Motor Plant is a leading domestic enterprise. The products produced here have high characteristics and quality.

Spark plug replacement procedure: recommendations

Installing a new spare part is a simple process if you do everything step by step. The procedure requires the removal of all 4 suppositories. To do this, you need to take the following steps:

• Find the tip with the seal.
• Remove the product using a spark plug wrench.
• If damage or defects are found, replace the element.

When replacing a new part, you need to pay attention to carbon deposits on the working area. A black coating indicates that the engine was running on an over-rich mixture. Light soot indicates an over-digested mixture. The norm is a light brown tint. This plaque indicates normal engine operation.

If only one of the four elements is damaged, they should be replaced as a whole.

Description of service

Engine maintenance is expected after 15,000 km. So, the engine holds 7 liters of engine oil, but when replacing it will only require 6 liters. The main oils recommended by the manufacturer and car enthusiasts are semi-synthetic, marked: 5W-30, 5W-40, 10W-30, 10W-40, 15W-40, 20W-40.

The maintenance card is no different from 409, and looks something like this:

1. 1000-2500 km or TO-0: oil and oil filter change.
2. 8000-10000 km - TO-1: oil change, oil and air filters, spark plugs, high-voltage wires, fuel.
3. 25,000 km - TO-2: oil change, oil filter.
4. 40,000 km - TO-3: oil change, oil and air filter, spark plugs, high-voltage wires, valve adjustment.
5. 55,000 km - TO-4: oil change, oil filter, fuel filter, timing chain and alternator belt replacement.
6. 70,000 km - TO-5 and subsequent: oil and oil filter change. Every 20,000 km the fuel and air filters are changed and the valves are adjusted. Every 50,000 km, replace the timing chain.

Every second maintenance requires checking systems such as the valve mechanism, the condition of the electronic powertrain control unit, and the functionality of sensors. The valve mechanism is adjusted after 50,000 km, or earlier if necessary.

Often, by 70,000, hydraulic compensators fail, which need to be replaced all together, since it is unknown when the functional ones will fail. The valve cover gasket is replaced every 40,000 km or when a leak develops from under it.

Problems and common faults

Usually the ZMZ-409 begins to require serious attention at the turn of 300 thousand km. But it can start causing problems even earlier if it is operated in unfavorable conditions, without proper maintenance.

The main malfunctions on the UAZ “Loaf” with a 409 injection engine, a widely used example of a car with this engine:

• increase in gasoline consumption;
• reduction in engine power;
• pressure drop in the oil system;
• smoke from the engine compartment;
• tripping and unstable engine operation.

Engine problems arise for various reasons.

The engine won't start

The reasons for this may be:

• lack of gasoline pressure in the fuel rail;
• failure in the ignition system.

The fuel lines and tank should be checked, washed and purged if necessary. If the engine fuel pump is faulty, it must be replaced. Often a drop in pressure is associated with a clogged fuel filter that needs to be replaced. Another possible reason is a breakdown of the fuel pressure regulator, which can be corrected by replacing it.

If ignition problems are suspected, spark plugs, coils, armor wires and other components should be checked.

It is important to ensure that the ignition timing is set to the correct level.

Loss of motor power

• The engine throttle valve does not open completely. The damper drive needs adjustment.
• The DPS (damper position sensor) is broken and should be replaced;
• low pressure in the fuel rail - see above;
• the air filter is dirty and needs to be replaced;
• ignition problems;
• The valve clearances are broken; they should be adjusted;
• low compression due to a breakdown of the cylinder head gasket, burnout of the engine pistons or malfunction of the piston rings, valve misalignment, wear of the cylinders/rings.

The engine suddenly stalls or runs erratically

• drop in gasoline pressure;
• breakdown of the idle air control;
• loss of tightness in the intake system, air leaks.

Low pressure in the oil line

Possible engine malfunctions and problems leading to this:

• incorrect type of oil poured into the engine;
• gasoline or coolant entering the crankcase, followed by foaming (a dangerous phenomenon; the cause of the leak must be eliminated as soon as possible and the oil replaced);
• wear and contamination of the oil pump (it should be washed and, if necessary, replaced);
• contamination of the oil filter (the solution is to replace it);
• the gap between the bottom of the crankcase and the oil receiver is too small, damage to the latter. The crankcase needs to be restored to its original geometry or replaced;
• There is too much clearance between the crankshaft journals and the bearings. It can be solved by replacing the engine bearings and grinding the journals;
• clogging of BC oil lines, cracks in the cavities of the oil line. “Treatment” – repair of the BC or its replacement.

Knock of crankshaft bearings

A metallic knock is heard when the gas pedal is sharply pressed in idle mode, the knocking becomes more frequent as the engine speed increases. Possible reasons:

• Oil pressure has dropped, engine parts are starved of oil. The cause must be found and eliminated;
• increasing the gap between the engine crankshaft liners and journals. The necks need to be polished and the bearings replaced.

Knock from the piston block

It is caused by the beating of the pistons against the cylinder walls, is well detected under load at low speeds, and is of a muted nature. Causes:

• large gap between cylinder and piston. The problem is solved by replacing the pistons with simultaneous boring of the engine cylinders (and honing them);
• If the knocking is caused by a large gap between the piston grooves and the rings, the latter or the pistons complete with rings should be replaced.

High oil consumption

• leaks through engine seals;
• clogged crankcase;
• problems with the piston, rings, valve stem seals.

Read more: Starline b92 key fob operating instructions

Motor vibration

• engine crankshaft imbalance (balancing required)
• valves that need clearance adjustment;
• wear of engine mounts;
• The crankshaft pulley has become loose.

Engine overheating

Caused by malfunctions in the cooling system: the coolant level and the general condition of the system should be checked.

Cooling system

The ZMZ 409 engine is equipped with a liquid, closed, forced cooling system. The system is presented in the form of a water jacket on the cylinder block, on the cylinder head, a water pump, as well as a thermostat, coolant temperature sensor, and ambient heating sensor.

The ZMZ 409 engine provides the most optimal thermal regime within 80-90 degrees. It is maintained by a thermostat. It works automatically. The correct temperature conditions make it possible to make the UAZ SUV unpretentious in maintenance. The engine of the 409 model is highly efficient, and its parts are extremely wear-resistant.

To keep the driver calm and the ZMZ 409 engine not to overheat, engineers placed an emergency temperature light on the dashboard. The indicator will work if the temperature goes beyond 104 degrees. The sensor is located on top of the radiator tank. You need to make sure that the engine does not overheat, otherwise the 409 engine will need to be repaired.

Choice

After the factory spark plugs on the UAZ Patriot wear out, they need to be replaced with new ones, but before changing them, you need to make a choice. Now there are a huge number of manufacturers, and design options, they can be:

• Silver;
• Platinum;
• Yttrium;
• Iridium.

therefore, the car owner may be confused at the sight of such a huge selection. It is recommended to consult with the seller before purchasing.

Before buying spark plugs for a UAZ Patriot, you need to figure out what engine is installed in the car. This SUV is equipped with a ZMZ-409 gasoline power unit with four cylinders and microprocessor injection. To achieve maximum results, it is recommended to fill in Euro-4 gasoline; the car works best with this fuel; filling fuel below this value is undesirable, as this can lead to negative consequences, for example:

• They will become slower to gain momentum;
• Candles will quickly become dirty and burn out;
• When accelerating, the valves begin to knock.

Based on the installed engine that is fueled with Euro-4 gasoline, you can choose those spark plugs that are designed specifically for this type of engine. Iridium and platinum are considered more durable and expensive; their minimum service life is about 70,000 kilometers. It is also worth paying attention to plasma prechamber products as they have a number of positive properties, such as:

• Good self-cleaning;
• Long service life;
• A non-standard device, their body acts as a side electrode.

When choosing, in addition to the manufacturer, you should pay attention to technical data such as: clearance, length and thread of the product. For engines installed on UAZ Patriot, spark plugs that have the following parameters are suitable:

• Thread with a length of at least 19 mm, and M14x1.25;
• Built-in resistor;
• The gap in which a spark is formed is from 0.7 to 0.85 mm.

The product with such data is suitable for this type of engine. As a rule, A 14 DVR spark plugs or their equivalent are used.

Let's sum it up

Every experienced driver already knows that his car, including the UAZ Patriot, definitely needs suitable fuel. As for candles, fuel helps extend the service life of products. You should also inspect the spark plugs, especially if you know that the installed cheap products are not original ones. There is nothing wrong with them, the only negative is that they will have to be changed more often, but you can do this yourself.

Source

Selecting spark plugs for a car with gas equipment. What is the difference between gas and gasoline

Last updated - October 21, 2022 at 07:38

After converting a vehicle to gas fuel (most often this is the installation of 4th and 2nd generation LPG), manufacturers of ignition systems recommend installing spark plugs for LPG on the car engine, designed specifically for operation on “CNG” and “LPG” (methane/propane) .

And indeed, some time after installing gas equipment, car owners notice a decrease in the service life of spark plugs, coils, and high-voltage wires.

In this article we will understand the difference between spark plugs for gas and gasoline. Should I install gas spark plugs, or should I limit myself to adjusting the gaps of standard parts?