Do-it-yourself Volga repair

In detail: do-it-yourself Volga repair from a real master for the site my.housecope.com.

Engines for the Volga were produced by the Zavolzhsky Motor Plant. If you do not take into account ZMZ 21 and its modifications, then, in fact, power units marked 402, 405 and 406 were installed on passenger GAZ cars. There were both carburetor and injection versions. Motors are quite simple in design, and therefore do-it-yourself engine repairs are carried out without problems, which is what motorists do.

As already mentioned, the Volga engine had several options and markings. The most successful and successful is the injection version of the 406 16-valve engine. Although, all options, with decent maintenance and care, will serve their owners for a long time.

Consider the main technical characteristics of all three power units:

Technical characteristics of ZMZ 402:

Technical characteristics of the ZMZ 406 engine:

Repair of the legendary carburetor engine ZMZ 402 is quite simple. So, the engine is dismantled from the car and disassembled. In this case, the cylinder head is removed, which, most likely, has worn out valves, guide bushings, seats and valve stem seals. If there is deformation or deflection of the body, it is necessary to grind the plane.

But, often, the main problem is the corrosion of the aluminum cylinder head, since the operation is carried out on tap water.

The cylinder block of the Volga engine goes through the boring-honing stage. So, often the piston group cannot be repaired, due to heavy wear, and the assembly is linened under the standard size - 92.0 mm. But, there are also repair options for pistons - 92.5 mm, 93.0 mm.

Video (click to play).

The crankshaft groove is carried out for the following liner sizes: 0.25, 0.5, 0.75, 1.0 and 1.25 mm. But as practice shows, the last size for boring the crankshaft becomes 1.0 mm. When boring to large sizes, there is a high probability that the part will break under load.

Also, often, engine repair is accompanied by the change of the following parts:

  • Oil pump.
  • Water pump.
  • Spark plug.
  • High voltage wires.
  • Other parts that are out of order.

It is imperative to clean and install a carburetor repair kit. After assembling the power unit and installing the injection, it is necessary to adjust the flow and ignition.

Since the 405 and 406 engines were produced with different injection options, it is necessary to consider repairs separately for the carburetor and injector. So, consider, the basic operations are necessary when repairing the Volga engine.

The carburetor versions of the 405th and 406th are repaired by analogs with the 402th. The difference is that this "classic" version of the motor has an 8-valve system, while these two have a 16-valve system. Structurally, the ignition system is very different. Of course, the parts have a slightly different location and appearance, but this does not change the principle of repair.

The 406th engine has a piston group size of 92.0 mm, as in the 402nd ICE. But already in the 405th, standard pistons have a diameter of 95.5 mm. In this case, the dimensions of the repair options are 96.0 mm and 96.5 mm.

With an injection engine, not everything is as simple as it seems at first glance. So, the first problem that will have to be faced is the presence of "complex Volgovskaya electronics", which must be disconnected and connected after the repair. Dismantling the head of the block will require some knowledge in the design of the injection power unit.

The groove of the crankshaft has the same dimensions of the liners as in the carburetor "classic" engine ZMZ 402 - 0.25, 0.5, 0.75, 1.0 and 1.25 mm. As for the cylinder block, everything is a little more complicated, and the boring should be entrusted to the professionals in the car service.

Since engine repair will require changing almost all components, do not forget about changing the repair kit for the gas distribution mechanism, as well as the water pump.As practice shows, in 90% of cases, such an important knot as the clutch also changes.

It is worth remembering that after grooving the crankshaft and installing a new clutch, the unit must be balanced to avoid wear.

After a major overhaul, without fail, after 2500-3000 km of run, it is necessary to change the oil, since at the time of running-in it loses its properties. Further maintenance is carried out after 12-15 thousand kilometers.

The Volga engine is one of the most maintainable, and can also be easily restored with your own hands. This is proved by the long-term practice of many motorists. The order of operations is standard, from disassembly to boring and honing. But, novice motorists should refrain from independent such work, since there are many subtleties and nuances.

The Gorky Automobile Plant produced the GAZ-3110 Volga sedan from 1996 to 2005. Production stopped long ago, but you can still find a lot of these cars on the roads of Russia; for their owners, the issues of operation, maintenance and repair of the GAZ-3110 "Volga" remain relevant. In the event of a malfunction, you can contact the workshop, but all the warranty periods for the car have long expired, any problems will have to be eliminated at your own expense. Therefore, many owners choose to carry out maintenance and repairs themselves.

Volga Gaz 3110 car design

During the trip, you should constantly monitor the condition of the car, monitor the readings of the devices. If you hear abnormal sounds, try to determine the cause and fix the problem. Do not allow the engine to run at maximum speeds for a long time, do not exceed the speed limit, especially on roads with poor coverage, this leads to rapid wear of the suspension. Try to anticipate the situation on the road, move smoothly, without sudden acceleration and braking.

If the maintenance time is exceeded, the units operate on contaminated liquids, their service life decreases. Avoid excessive wear on the brake pads, replace them if signs of wear appear (squeak when braking). A complete list and terms of routine maintenance are given in the instructions for the car.

If any malfunction occurs, it is necessary to determine what exactly failed. Sometimes this is immediately clear (for example, a flat tire), but often the source of the problem is not easy to find.

Very often the problems are associated with him. On the GAZ-3110 "Volga" they installed ZMZ-402 (carburetor), later ZMZ-406 (injection), cars with a diesel engine were also produced, but in very small quantities, no more than 150 units per year.

Injection engine ZMZ-406 for the Volga car

Various malfunctions of other units and assemblies are possible. Transmission and suspension repairs usually boil down to replacing defective parts. There are only two problems in the electrical circuits of gas 3110: there is no contact where it is needed, or there is where it is not needed. A joke, of course, but there is some truth in it. The repair consists in cleaning the contacts and replacing faulty devices, for example, light bulbs.