DIY gas 21 engine repair

In detail: do-it-yourself gas 21 engine repair from a real master for the site my.housecope.com.

Restoration of the car GAZ-21 "Volga": photos of step-by-step works.

The GAZ-21 car was produced at the Gorky Automobile Plant from 956 to 1970; in total, more than half a million GAZ-21 cars were produced in several modifications.

  • Overall dimensions - 4816 x 1800 x 1620 mm.
  • Weight - 1360 kg (dry).
  • Engine - GAZ-21 four-cylinder (volume 2.5 liters), power 70 (forced 85) liters. With.
  • The gearbox is a 3-speed manual (some modifications were fitted with an automatic 3-speed automatic transmission).
  • Maximum speed with rated load - 130 km / h.
  • Fuel gasoline A-70.
  • Fuel consumption on the highway with full load at a speed of 50 km / h - 9 liters per 100 km.

In the 60s, it was the most popular car in the Soviet Union, in 1961, after the price denomination, GAZ-21 cost 5600 Soviet rubles, by 1970 it had risen in price to 9000 rubles.

In this article, we will just look at the process of restoring the legendary 21st Volga.

The result of the author's work, it took a year and a half to restore the GAZ-21 car.

Many Volga GAZ-21 models are no longer in the best condition, but it's a pity to write off such a car for scrap. And by the way, practically no one hands over the "twenty-first" according to the recycling program, everyone is trying to restore the car. But for the restoration of such rarities, they undertake mainly only in specialized services, and the prices there are very rather big.

The classic model of the black Volga GAZ-21

Of course, no matter how strong the body is, it does not get better from time to time. Thresholds, wheel arches and the underside of the car have always been and will be problem areas. And if the body has succumbed to corrosion in several places at once, then in order to carry out a major overhaul of the body, the car will need to be completely disassembled. For this:

Video (click to play).
  • The front fenders, all doors, hood and trunk lid are removed from the car;
  • Dismantle the engine complete with attachments and gearbox;
  • The front suspension and rear axle are removed;

It looks like a rear axle gas 21

Having disassembled the entire car, it is necessary to inspect the body for defects and rust. Then:

  • Removes traces of old paint and rust from the body;
  • The damaged areas are boiled, if necessary, new thresholds are welded in, the rear fenders are spars;
  • The body is cleaned with gas 21 before painting;
  • First, it is done with a primer, and then painting.

It is not bad for the body to carry out anti-corrosion treatment (bottom bottom, wheel arches), as well as to make noise insulation.

Repair of the GAZ-21 interior begins with the seats. As a rule, their condition in the "Volga" leaves much to be desired. To preserve the native seats, they will have to be restored. Usually, in sofas (front and back), all the filling is changed and the seats are sheathed with new material. Foam rubber is usually used as a filling. On the frames, it is necessary to replace broken springs, clean the iron from rust, paint the frame. To carry out the work, the sofas will need to be removed.

The front seat of the GAZ-21 is solid, and it is one piece for the driver and passenger.

Such a sofa is somewhat easier to pull over than the front seats of modern cars - it has a simple shape without any tricky bends. The rear seat is not much different from the front in shape.

The original seats of the twenty-first Volga

The owners of the 21st are aware that the stove in the passenger compartment of the car has a low performance. It's all about the heater radiator. The coolant pipes (inlet and outlet) are on one side (on the left tank).According to the conceived scheme, the coolant (or water) must completely fill the cavity of the radiator, passing through the tubes inside the system. But due to factory defects, water, barely getting into the radiator of the stove, immediately flows out. As a result, the water in the radiator does not circulate and does not warm up the interior.

Volga 21 heating device diagram

  • A hole is drilled on the opposite (right) tank and a pipe is soldered;
  • A tee and an additional hose are placed on the water supply, and water is supplied to both inlets on the left side of the stove radiator;
  • The heated water intake hose is moved to the soldered outlet of the right tank.

The coolant now flows through the entire heater radiator and heats the air in the vehicle interior.

Often, to achieve a higher temperature in the cabin, an additional stove motor is often installed. The motor improves the circulation of fluid in the heating system - the air in the cabin warms up faster, and the temperature becomes higher. Also, craftsmen "introduce" an additional stove in the cabin from the VAZ 2106 car.

It looks like a gas stove 21

Most often, repairs on the Volga GAZ 21 are required for the engine, transmission and chassis. "Native" motors already have a considerable mileage, so the owners replace the power unit with another, more often from another model.

GAZ 21 was discontinued in 1970, and sometimes there is a "tension" with spare parts. But here the details come to the rescue, which are unified with the Volgovskiye.

Let's say you need to overhaul the ZMZ 21 engine. How can you replace the "native" parts? Here is some information you can take on board:

    Crankshaft. Suitable from UMZ-451 engines. You should know that the first releases of ZMZ 21 are not compatible with anything on the crankshafts.

Diagram of the Volga 21 crankshaft device