MTZ tractor engine does not start: causes of malfunction

The special equipment and tractors of the Minsk Tractor Plant Belarus are very reliable and rarely fail. Recently, they have been equipped with a Lamborghini engine. But even she sometimes has breakdowns. There is a very unpleasant situation when the MTZ engine stalls and does not want to start. At the same time, a message with a corresponding description of the fault code appears on the instrument panel display. But there are exceptions when errors are not displayed. Our company’s specialists have accumulated solid experience in diagnosing and repairing the described faults. There are two radically different options for not starting the engine:

1. When you turn the key in the ignition, the starter cranks the excavator engine
2. The starter does not turn on and does not turn the engine

I will try to tell you in more detail about each of the options for equipment malfunction.

Diesel at MTZ does not start well - reasons

1. The main reason for this engine behavior is poor compression.

2. This occurs due to the fault of the glow plugs, if they are faulty, or the glow plug relay. 3. This occurs if the starting frequency of the electric starter is insufficient.

4. Insufficient pressure in the high pressure fuel pump. Everything else will only lead to a deterioration in the performance of the diesel engine: for example, the breakdown of an injector or some of its electronic elements.

If the diesel engine starts but does not run well, then read about diesel engine malfunctions. Now let's find out how to identify the malfunctions listed above and what to do in these cases.

If, upon repeated measurement, the result becomes greater than the previous one, then the problem is in the piston, it must be replaced.

If the compression indicator has hardly changed, then everything is fine with the piston, and the reason is in the gas distribution mechanism. If the compression in the cylinders of a diesel engine is normal, then it may not start due to a malfunction of the glow plugs and their relays.

Starting crankshaft rotation speed, depending on the time for 6 fuel injections

The main reasons for poor starting

The list of reasons why a cold engine is difficult to start is quite wide. Before starting diagnostics, it is necessary to more accurately localize the fault. Make sure that the starter is charged and turns the engine smoothly (at the same speed). Additionally, it is worth excluding the possibility of refueling with low-grade gasoline.

Fuel supply

Problems with starting the engine can arise both as a result of the fact that there is no fuel supply, and due to failures in the process of its ignition in the engine cylinders. As for the fuel supply, there may be too little fuel to start. It is also possible that the spark plugs are flooded with excess fuel.

1. It's worth starting the check by making sure there is an exhaust. If light smoke appears from the exhaust pipe after turning the starter, then this indicates that there is fuel supply to the cylinders.
2. The next step is to remove the spark plugs. The spark plugs must be unscrewed after an unsuccessful attempt to start the engine. If the spark plug is flooded with gasoline, then this can often indicate problems with injector sealing or ignition. Check the integrity of the spark plugs themselves and the high-voltage wires, and also make sure that there is a spark at the spark plugs. A dry spark plug will indicate that fuel is not being supplied to the cylinder.
3. Clogged coarse and fine filters, as well as faulty or heavily coked filters, can also hinder the normal supply of fuel to the engine. Fuel may also not flow into the engine due to a sudden failure. This means that the fuel pump is not creating the required pressure. To find out the reasons, you will need to check the fuel pressure in the rail and the fuel pump itself.

An additional nuance may be air leaks in the fuel system. It is necessary to examine the lines for damage, bends, cracks, etc. Gasoline leakage is a clear sign of loss of seal in the fuel lines.

Electronic sensors

The electronic injection system is equipped with special sensors, thanks to which interaction with the engine is realized. Failure of individual electronic components can result in incorrect signals being sent to the control unit and the engine cannot be started.

If the engine does not start, then you need to check several sensors:

• (DPRV);
• throttle position sensor (TPS);
• (DFID);

It is also necessary to simultaneously clean the throttle, check the air filter and the XX valve. Self-diagnosis of sensors can be done using a multimeter.

Ignition check

The engine may not start if the ignition distributor is faulty. This malfunction manifests itself in such a way that when the starter rotates, the so-called seizure does not occur, that is, there are no signs of single attempts to ignite the fuel-air mixture in the engine cylinders.

It is also worth paying attention to the belt and its drive. In some cases, it is worth checking the condition of the variable valve timing system (if equipped). The ignition coil can be checked using a multimeter.

Compression reduction

A loss of compression in one or more engine cylinders is a consequence of natural wear or damage to the power unit. A motor with low compression does not, as there is a strong increase in the gaps between the parts in the cylinder. In other words, it is not possible to achieve the required pressure in the combustion chamber to ignite the working mixture at the time of start-up.

Frequent causes of this malfunction may be piston destruction, broken or stuck piston rings, timing belt burnout, wear of the cylinder walls, etc. Low compression most often appears during a cold start, but can also be present constantly (when trying to start a very worn engine “hot”). An engine with such a malfunction is most difficult to start at low temperatures. For an accurate diagnosis, compression must be measured.

Why does the MTZ 82 tractor start poorly?

There are good people living on a farm N km from Moscow.

You can use a special motor tester, if you have one. There is another way to measure starting speed. 2. Disconnect the high pressure fuel line from any injector, and place a plastic bottle on it to protect the engine from fuel splashes. Tags: Why, tractor, MTZ, 82, bad, starts Starting the MTZ-82 tractor in cold weather -23 degrees, preheating for 1.5 hours. Engine during this time. Mar 21, 2011 — After the winter it became difficult to start. MTZ even installed a gear starter and still doesn’t want to. The tractor worked for 800 hours. It is difficult to start the tractor google.com/500 tractor MTZ-80, MTZ-82: 1 - fitting bolt; 2 - valve body; 3 - current-carrying terminals; 4 - fitting; .

Now there will be no one, something went wrong with the robots, as usual. After purchasing an MTZ-82 from a former collective farm and overhauling it to a cold one.

Depends on what you mean by hard to start. It turns poorly and sneezes. Feb 7, 2014 — When cold, the engine won’t start on its own, but you jerk the car. and instead install a starting motor from the MTZ-80 tractor (at .

Wash or replace the nozzle Insufficient air supply Wash the air cleaner and fill it with clean oil, following the instructions given in the “Air Cleaner Care” section The fuel pump is not installed correctly Adjust the start of the fuel supply Incorrect installation of the timing gears after repair Install the gears according to the marks Possible causes and symptoms of malfunction Adjust valve clearances. If necessary, lap the valves or replace worn parts of the piston group Blue smoke (oil entering the combustion chamber) Possible causes and signs of malfunction Excess oil in the engine crankcase Set the level to the top mark of the oil dipstick Worn parts of the piston group - rings, liners or pistons Replace worn parts Engine tractor MTZ-82/80 suddenly stops Possible causes and signs of malfunction Presence of air in the fuel equipment Remove air and fill the equipment with fuel Check the presence of fuel, serviceability of fuel lines, filters and booster pump Drain all fuel and replace with sediment Jammed piston in the liner Remove the piston, inspect the liner .

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The tractor won't start. The T-25 tractor has been standing for three years and now it won’t start, what should I do? Elena Davydova Student (122), Issue resolved 3 years ago.

I bought a bull a year and a half ago, immediately repaired the pump and injectors the first winter and started only on air a month ago I decided to install a new piston and again in the morning the injectors did not start; I adjusted the injectors; it doesn’t help; it feels like it can’t overcome something! gas to the floor and it works like it’s on a pump) so I’m wondering if they gave me old plunger pairs! what could be the problem??? If anyone has had this please post! I don’t want to pour ether; all the pistons on the old piston were cracked!

Bychok (Madura) at what temperature does it stop starting?

Vladimir (Gerd) Little bull, it sucks to start up right now ((

Bychok (Madura) are there any torches on the engine?

Vladimir (Gerd) Bull, no, it was thrown out before me!!!

Farit (Tamasvini) Vladimir buy yourself a 2 kW electric water heater, turn it on for half an hour and it will start with half a turn

Bychok (Madura) went to Solikamsk yesterday.

I gave the tractor driver a lift. he told me the golden thing from his experience! — started having trouble starting? you remove the pump, throw out the plunger pairs, install new ones and “here is the fish of my dreams” it starts with half a turn even in the cold! - and added sarcastically - but you still need to heat up the butter!!!

Yury (Indukanta) My friend has a bull, it starts in frosty 20 degrees, on dead acs, the crankshaft barely makes three turns and grabs, and this is after a week of inactivity, and such tests will ruin the second winter! I did the pump on mine three times with different ones, changed the piston, the oil is better, new AC, starter with gearbox, spins up to 1000 rpm on the starter, but at low temperatures it won’t start without ether (BITCH) I think it might burn it out! Vladimir, we were probably unlucky with the car, we’ll be lucky in something else!!!

Sergey (Tzachi) install the heater at 220 V.

Vladimir (Gerd) Yura, do you have a Euro 2 engine??

Yury (Indukanta) Euro 0.

Vladimir (Gerd) Yura, should you muffle the pedal or the muffler??

Yury (Indukanta) Jammer!

Sergey (Tzachi) at minus 30-35 it starts well with heating at 220 (1.5 kW), without heating the oil. I have experience starting at -40, but to do this you have to heat the oil with a lamp, otherwise I’m afraid it will turn it off, and the Akuma should be normal.

Vladimir (Gerd) Yura, so I have friends with a jammer who start the jammer with the pedal half a turn, and those with a jammer still suffer from this, the conclusion is that they didn’t jam the brain, maybe it doesn’t go away? I want to install a regular tractor pump and test it!

Yury (Indukanta) I found out from the fuel specialists that a pump without a muffler has a greater fuel supply at the time of start-up, and therefore starts better!

Vladimir (Gerd) Yura, is there any difference in driving and work?

Vladimir (Gerd) yes, I installed a glow plug and it starts up perfectly, just don’t touch the gas for 2 minutes if the tronish immediately stalls(

Yury (Indukanta) There is no difference in operation at idle and while driving, they say the old pump has less consumption!

Sergey (Tzachi) I have a Euro 2 engine, a 773 Yaroslav pump with a manual muffler, up to -10 it starts perfectly, with half a turn, if the temp. Below I don’t risk connecting glow plugs (the rest of the time they are turned off) or heating 220V

Tags: Why does the MTZ 82.1 tractor start poorly when cold?

Diesel engine does not start well, hot or cold

An internal combustion engine running on diesel fuel has a fundamentally different design and operating principle compared to gasoline units.

For a long time, diesel units were installed only on trucks and heavy equipment. This is because they provide more economical fuel consumption compared to gasoline ones, and their power ratings are significantly higher.

But now a little more about how a diesel engine works: Despite the fact that poor performance of a diesel engine is a typical problem for the winter season, it can also be relevant in the summer. And all because this type of unit has its own nuances, which constantly have to be taken into account. Next, we will analyze the list of reasons that most often make all owners of vehicles running on this fuel nervous: If after this the car starts, it means that the pump has exhausted its reserve.

If it continues to work for some time, then the situation will certainly repeat itself.

After a short period of driving, the car will no longer be able to start. How to fix this problem? If the engine does not start when hot due to worn fuel injection pump, the pump can either be repaired or replaced completely.

The following is a video about what to do if the high-pressure pump breaks down: After turning on the ignition and pulling the suction, the motor does not catch. That is, the diesel engine does not start even after several attempts.

Light white smoke comes out of the exhaust pipe, but starting does not occur.

If there is no reaction, you need to measure the compression in the diesel engine.

This should be done using a compression gauge and on a cold unit. If the device shows a level of 30 or higher on each cylinder, it means that everything is in order with the compression in the diesel engine.

The engine does not start well: causes and solution to the problem

If the car does not start, you need to immediately determine the reasons that negatively affect the engine starting. And for this it is necessary to systematize and reduce the number of options for engine operation problems. Does the engine have problems running “cold” or “hot”? Does the engine run on gasoline or diesel fuel? Answering these questions will help reduce the number of causes of poor engine performance.

Why is the engine difficult to start? We need to understand the key reason!

With half a turn, it is possible to start only ideally tuned types of engines with a carburetor or mechanical injection of the first generations, which do not contain any electronics. In all other cases, the engine control unit must poll the sensors and, after analyzing their signals, give a command to fire a spark.

This takes several engine revolutions with the starter. In case of malfunctions, the process is delayed, which greatly irritates the owner of the car. In such cases, there is a problem with starting the vehicle. It is necessary to separate the factors that negatively affect the starting of a gasoline and diesel engine.

Gasoline engine does not start well

A gasoline engine differs from a diesel engine primarily in the presence of spark plugs. Not to be confused with glow plugs. That is, in order for a gasoline engine to work as expected, it is necessary to ignite the fuel-air mixture with a spark from the spark plug.

Why doesn't the car

The main reasons why a car does not start well when cold are:

Weak dead battery

This factor of poor engine starting is widespread! Frost leads to accelerated discharge of batteries.

Solution:

• The vehicle can be started by replacing the battery with a charged one, or charging the existing one;
• if the car allows it. In this case, be sure to take into account the sequence of actions specified in the operating instructions.

Advice! If you doubt whether the vehicle will start in cold weather due to a dead battery, then you should understand that the battery will have the strongest charge only when you first try to start the engine. From the moment the car is opened with the key fob, processes that consume electricity are started in the system, so it is important to act quickly!

The greatest likelihood of starting a vehicle with a dead battery is:

1. Standing next to the car, open it and immediately sit in the driver’s seat, turning on the ignition.
2. Wait 2-4 seconds for all vehicle systems to activate.
3. Turn the ignition key further, activating the starter and starting the engine.

Low spark level

The second, common case is a low level of sparking.

This may happen for the following reasons:

• when spark plugs fail;
• if the electrical connections of the ignition system are broken;
• when the ignition coils fail

Won't start when the diesel engine is hot

• Club "Elder"
• 178 messages
• Tula city
• Name: Andrey XP Deus

Good day to everyone, dear forum participants!

The main reasons why the engine starts to stall after warming up. Frequent problems of carburetor and injection engines, fault diagnosis. Why spark plugs flood on injection and carburetor engines: the main reasons for wet spark plugs.

• Aprelevka city
• Name: Vasek

• City Moscow
• Name: Ernesto

That's what the Internet says, I've never personally encountered it myself.

A car with a diesel engine stopped working. To “cold” half a turn. Can you tell me the cause of the problem?

Although unlikely. There is no advance clutch on the MTZ, and the injection pump drive is rigidly secured with two bolts. Many farmers are unable to start their tractor in cold weather.

Therefore, on the eve of winter frosts, we decided to describe a simple, and most importantly, cheap trick with which you can quickly start the engine even at -20 degrees Celsius. Why doesn't the MTZ engine start? Starting an MTZ diesel engine at low temperatures always leads to adverse consequences.

Rapid wear, replacement and purchase of new parts await you if you start incorrectly. Starting a diesel engine in cold weather leads to:

• Failures in oil supply to bearings;
• Increased resistance of pipelines;
• Changes in the hydrodynamic operating conditions of mechanisms (bearings).

For these reasons, the MTZ 80 diesel engine cannot start for a long time. In some cases, refusal is possible altogether.

Laboratory experiments Several experiments were carried out in factory conditions. Basically, the delay time during oil flow to the bearings was measured (air temperature in the chamber -20 degrees Celsius).

Then the tractor engine was kept for 15 hours. The oil was not changed during the test. As a result, it was found that only after sixteen seconds does oil pass into the engine to the turbocharger filter.

But this is all in theory. In operating mode, this figure is lower and amounts to fifty ml/min.

As soon as the rotor speed increases when starting a diesel tractor, the throughput also increases. In this mode, oil consumption does not exceed four hundred and fifty ml/min.

most beautiful? (red color only) Registration and driver's license.

We have burned and will continue to burn!! And do you know why?

strangernn PPT-82 Because mention of this - completely serial and relatively mass-produced in the Soviet years - forest fire engine PPT-82 is now found only in the lists of property sold after the bankruptcies of forestry enterprises and timber industry enterprises.. Unfortunately, this unsightly, but very well equipped patrol The firefighting tractor on the MTZ-82 chassis, known for its unpretentiousness and survivability, is gradually fading into history. After all, he was not even in service with the fire department, but at the very bottom - with those organizations that lived in the forest. And, therefore, he was the first to get to the source of the fire, preventing the misfortune from turning into a catastrophe. But after the adoption of the new “forest code,” a forest fire that has not yet burned half the country is not considered a problem at all. And there is nothing to put out the fire with, before at least these tractors worked... Now there will be no one, something went wrong with the robots, as usual...