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And We Have Gas In Samara

2024

Video: And We Have Gas In Samara

Video: And We Have Gas In Samara
Video: Беслан. Помни / Beslan. Remember (english & español subs) 2024, March
And We Have Gas In Samara
And We Have Gas In Samara
Anonim

CLUB OF CAR FANS

/ EXPERIENCE

And WE HAVE GAS IN SAMARA

THE EDITORIAL TESTS OF “GAS” “NINE” FINISHED

TEXT / ANATOLY KARPENKOV

Notes on the difficult life of the blue "nine" seem to be close to the epilogue. The car really began to get tired and began to require more serious repairs.

With a mileage of 82, 000 km, finally, it was possible to find out the cause of the "shortness of breath" of the motor. Revision of the distribution sensor, switch, spark plugs, flushing and cleaning the carburetor did not give an answer. The defect turned out to be rather unusual. From practice it is known that the ignition coil either works or not. "Dry coil" is more cunning. The inter-turn circuit in it had practically no effect on the start-up, and the car could move, but how! The thrust under load noticeably worsened, which gave rise to gloomy thoughts about the state of the engine. Fortunately, replacing the standard coil immediately revived the motor.

During the reporting period, the car passed two maintenance. In addition to routine maintenance, it replaced the worn brake discs complete with pads and two bearings of the power unit. The rubber mount pads sagged so much that they allowed the alternator drive pulley to come in contact with the mudguard of the engine compartment.

On the 86th thousand, the clutch release fork suddenly broke due to welding. When it was changed, it turned out that the clutch assembly was also suitable: the driven disk - for wear of the friction linings, the pressure plate - due to the petals of the central diaphragm spring. On the 93rd thousandth, they once again updated the ball bearings. Rubber pads and silent blocks of the front suspension arms were worn out. I had to change the rear right wheel bearing due to increased play. 30 thousand km after replacing the rack and pinion steering gear with a new one, knocking reappeared in it. The reason is obvious - the wear of the support sleeve of the rail.

Usually, with the advent of winter, after a slushy autumn, it becomes easier to navigate the highway in the dark even on a car with old headlights. However, the winter of 2001 was very "dirty." The wiped and sandblasted windshield glittered so much that driving with oncoming traffic at night became unsafe. We had to replace the glass, and at the same time the worn seal of the fifth door.

I would like to share the experience of operating the VAZ 2109 3 in winter (these tips are true for all models of the "eighth" family).

To prevent external mirrors from breaking off on an automatic car wash, do not be lazy twice a year (in spring and autumn) to remove them and lubricate the adjustment drive, the locking mechanism and the spherical recess of the mirror element to the case with “Lithol” or other similar grease.

The locks of the front doors need periodic maintenance. All work is to unscrew the nut on the end surface of the door and, carefully moving the back of the handle away from the door panel, grease the locking mechanism with plenty of grease.

Before the start of winter and at the end it is advisable to remove, disassemble and grease the wiper drive axles with grease, protecting them from moisture and, most important, saline. Lubricated axles will not jam when the frost suddenly hits.

In our opinion, the experiment with the “muzzle” (a cover on the front of the hood) ended in failure, although the result was not difficult to foresee. Not only that, there was no less dirt and insects on the windshield, but even after washing the car or driving in the rain, the procedure for raising the hood was accompanied by a plentiful outpouring of water accumulated in the “muzzle” into the engine compartment, as if in a sponge. And starting a “flooded” motor is not always easy. But this is not the most unpleasant. The cover, of course, protects the hood from direct sandblasting. However, when the car moves, it “breathes”, oscillated by the flow of oncoming air, and abrasive from sand and dirt, which inevitably gathers under the cover, does its dirty work. Paintwork suffers much more seriously than from small pebbles.

Recall that one of the tasks of the life tests of the VAZ 2109 3 was to evaluate all the pros and cons of operating on liquefied petroleum gas (propane-butane or LPG). As for the fuel equipment (SAGA-6), it did not bring any special problems. Only the worn-out gas supply hose from the gearbox to the mixer and the bursting bracket for attaching the gas gearbox to the body were replaced. But the experienced electromagnetic gas shutoff valve worked only 28 thousand km. Given that all other parts and components are in order, we can say that SAGA-6 is quite reliable in operation.

The second task of the test was to determine whether gas fuel is harmful to the engine compared to gasoline or, on the contrary, prolongs its life. Recall that the wear of the cylinder-piston group when operating on gas fuel should theoretically be less, since gas does not wash off the oil film when starting a cold engine. On the other hand, the relatively low burning rate of the gas fuel mixture and a higher octane number compared to gasoline require a higher compression ratio and another ignition timing algorithm. On cars with carburetor engines, the control of the change in this angle is mechanical. Compression ratio - you understand … Therefore, the settings cannot be equally optimal for both gasoline and gas mixtures. Because of this, supposedly, the exhaust valves and seats are overheated and fail.

Now from theory to practice. After a run of 108 thousand km (of which 78 thousand on propane-butane), the exhaust valve of the third cylinder burned out. Various experts (including those from NAMI) evaluated the condition of the defective head … and not one attempted to assert unequivocally that liquefied gas became the cause of the valve destruction. They sinned for reduced clearance in the drive, although thermal clearances were systematically adjusted. On the other hand, none of the experts ruled out the negative impact of gas fuel. So is propane-butane guilty?

Perhaps, along with other problems, he nevertheless made his contribution. Having disassembled the engine, we were convinced that the cylinder-piston group is in excellent condition. In addition to a burned-out valve in the third cylinder, severe wear on the seats of the other valves was noted. Not the best way affected the durability of the motor and the features of the operation of a particular car. This "93rd" most of my life was rushing along high-speed tracks. Often they switched from gasoline to gas and vice versa (sometimes without adjusting the ignition timing). By the way, we have information that in Europe, with its “autobahn” driving modes, Samar had to repair the cylinder head after 80 thousand km on gas. Our passed on propane-butane almost as much.

And yet - is the game worth the candle? Let's calculate: the new head cost 4300 rubles. Another fifteen hundred - replacement plus gaskets, "Antifreeze", oil, belts. Total - 7, 500 rubles. Exactly so much we saved by using gas as fuel (and not always) only for the last 30 thousand km. So the repair paid off a long time ago. And with a calm, "country" style of driving, the likelihood of damage will probably be lower.

Finally, information for consideration: another editorial “93rd”, which “didn’t try” gas, had its head repaired at approximately the same mileage - camshaft wear, you see. And no fuel savings …

"Gas" "Samara" is cheaper to operate than its standard, gasoline counterpart. Both equipment and motor repair paid off. The final cost gap is not too large. However, we take into account that the gas car consumed about 1/3 of its mileage, and its service ended a year later. And fuel over the past year has appreciably risen.

Unambiguously associate the destruction of the valve with gas fuel experts.

MODEL / VAZ 2109 3

MANUFACTURER / AVTOVAZ

YEAR OF ISSUE / 1998

In operation

“DRIVING” / FROM JANUARY 1999

RUN ON THE MOMENT

REPORT / 108 256 KM

PREVIOUS

PUBLICATIONS / ЗР, 1999, No. 6

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