The entire "body" of the car is directly dependent on constant care. Consider the process of diagnosing the oil system of the Audi 80, the cost and what is needed for this.
The content of the article:
- Engine oil
- Oil temperature
- Seasonal temperature and oil
- Oil pump
- Price
On the dashboard of every car, including the Audi 80, there must be a sensor (warning lamp) for engine oil pressure in the engine. When this pressure sensor in the oil system lights up while the engine is running and does not go out at high engine speeds, then you need to think about and take emergency action to eliminate the cause.
So, for example, you need to stop and drown the iron horse. Next, you will need to diagnose the problem at the service station or yourself, and in the future, in no case, do not use the machine until the cause is eliminated, this may be fraught with overhaul.
Oil selection for Audi 80
Oil standards such as VW501 00 and VW501 01 must be observed when selecting and maintaining the oil system of the Audi 80. It should be noted that they cannot be used in diesel engines. But seasonal mineral engine oil VW505 00 is allowed to be used for the Audi 80 car without fear of any consequences for the diesel engine.
For a gasoline engine, it is best to use API SG or API SF oils. The first thing that experienced motorists usually pay attention to is the viscosity of the engine oil. It should not be too stringy, as the engine and its entire system will start and run hard. And also it should have a not too liquid consistency.
It is worth remembering that the oil can sometimes lose its properties. So, for example, when it overheats, or too high a temperature, or when water (antifreeze) gets into the oil, it no longer becomes what it was before or completely loses its properties.
When the Audi 80 car rushes at speed, its oil pump pumps about 30 liters of oil per minute. There are two types of engine in the Audi 80 - four- and five-cylinder. In the first form, the elongated distribution shaft starts to work with the help of intermediate oil.
But the second type is designed so that the pump is located in front of the crankshaft in the direction of the car. There is also a gearwheel with external fasteners, which is glued into a special other gearwheel with fastening inside.
During the movement of a certain type of teeth and a sufficiently unusual arrangement of the inner rotor, an empty space is created into which the engine oil is drawn. Then it is transferred from the pump to the lubrication channels. It is from the crankshaft that the drive is transmitted to the rotary pump. This process is an integral part of the oil system of the Audi 80. When the engine of the Audi 80 is constantly running, first of all, it is necessary to monitor the temperature indicators of the oil. Overheating or untimely feeding will lead to instant engine wedge.
Indicators of engine oil of the car Audi 80
The oil temperature is 80 ° C if the driver pours seasonal oil into the engine according to the SAE 20 W / 20 classification. When the engine is running, its speed reaches 2000 rpm, and then the oil pressure arrow should show at least 2.0 bar. Although, the pressure in the oil system of the Audi 80 can be monitored independently without involving any instruments. This moment will be "watched" by a pair of sensors, which will immediately give a signal in the event of a malfunction.
The first oil sensor will indicate the following: if the oil pressure light on the dashboard of the Audi 80 is on and an alarm is heard, this indicates that the sensor connections are closed when the pressure drops below 1.8 bar. At the same time, the engine speed of the Audi 80 should be no less than 2100 rpm. And the second will let you know if the low oil pressure gauge is triggered when it is below 0.3 bar. Then the signal beacon will be triggered regardless of the engine speed.
Thanks to such floating parameters, it is possible, without constantly looking under the hood, to determine the operability of the oil system, provided that the sensors are in good working order.
It is also possible to measure the engine oil pressure in the oil system of the Audi 80 at home. To do this, you need to remove one sensor and attach a pressure gauge instead. As a rule, these measurements are primarily needed to use the Audi 80 "bypassing" various breakdowns of the car's oil system. The engine fluid indicators can be seen on the dashboard. There, as a rule, all indicators of the sensors involved in the entire system are taken out. Comparing the temperature of the oil in the engine during operation, its highest temperature will be in the area of the cylinder head, since the cylinders give off heat during combustion. The "lowest" (relative to other parts of the engine) will be near the oil pump.
It is important to watch the liquid while the engine is running so that the liquid does not boil, otherwise it can lead to a wedge of the engine.
When the machine is equipped with an oil thermometer, it should show a temperature of about 145 ° C in the sump, as the maximum allowable rate. Such indicators occur when high-quality engine oil is used for a car, otherwise the temperature will be higher.
Seasonal temperature fluctuations
Low temperatures are dangerous for the engine and oil system of the Audi 80 during cold periods of the year. That is why you should not try to accelerate the engine to more than 3500 rpm at the tachometer when starting the engine. You always need to warm it up to 40-60 ° C and only then go. There is an opinion that the oil needs a couple of times longer than the coolant in order to reach the desired temperature.
There are breakdowns in the oil system as a result of temperature extremes:
- the control light does not stop fading out or has stopped flickering altogether after the engine is turned on;
- while the engine speed is increasing, the light is on continuously throughout the trip;
- consistently low engine oil pressure even at high rpm;
- excessively low oil pressure in the lower range of the engine.
When such problems appear, it is worth checking and inspecting the oil supply system. First you need to make sure that there is oil in the engine system. Then it is necessary to disconnect the fuel hose from the fuel pump on the carburetor of the Audi 80 and place it in a special container. Switch on the starter for a short time. During its operation, fuel will flow out in jerks from the hose.
In the event that engine oil is leaking from the system of the Audi 80, you will need to make sure that there is fuel in the filter. To do this, you need to remove the air filter and push on the accelerator. After this, the fuel must definitely enter the chamber.
If oil leaks from the system of the Audi 80, it is necessary to inspect the accelerating pipe (and it is also advisable to check the oil filter), and its condition for clogging. In addition, you need to inspect the engine from below for oil leaks or oily stains. Since the oil pan is at the bottom of the engine, there is a possibility of crankcase breakdown.
Oil pump repair
Sometimes it happens that the oil pump, one of the main components of the oil system, fails.
The first step in the process of repairing the Audi 80 oil pump is to dismantle it. First you will need to unscrew the bolts and remove the hood and de-energize the engine.
It is worth remembering that the repair of the oil system should be started on a cold engine, since the engine can cool down. The oil inside the engine will take a long time to cool. The first thing to start with is to drain the oil from the engine system.
After that, you need to unscrew the pallet, since the pump is located at the bottom of the engine. Now we remove the oil pump itself. All removed parts should be well rinsed from oil in kerosene or gasoline, not in any case with water, and let them dry. Once they are dry, they must be inspected for faults and amortization. In the event of a breakdown, it is recommended to replace the pump altogether.
Using the probe blade, you need to measure the gap between the drive and driven gears, and with a ruler we measure the axial clearance between the gears and the pump housing. After making sure that the elements of the oil pump are in running (working) condition, you will need to reassemble the safety valve, fix the gears, fill it with oil, install the sump cover with a new gasket and fasten it with bolts.
If it cannot be repaired, then it is better to buy a new oil pump, since sometimes it happens that a breakdown is not immediately noticed. The sensor will show incorrect information or will not work on time, and the engine will jam and then repair will cost tens of times more.
The cost of spare parts and repair of the oil system
Repairing a neglected and dirty oil system is always a waste of time and money. Therefore, in order to avoid this, it is best to diagnose the entire system of the Audi 80 from time to time.
But still, if this happened, and you are not sure of your ability to repair, then you should contact the specialists at the service station. I want to say right away that if repairs cannot be avoided, then you will have to buy an engine oil canister, an oil filter (since in most cases, together with an engine oil change, the oil filter is also changed) and of course repair kits that have broken.
Often, about 3-4 liters are consumed in the engine of an average foreign car or domestic car. oil, price for 1 liter. Motul brands start at $ 13. Let's say right away that taking a 4-liter canister will be cheaper than taking a liter separately, so 4 liters. Shell brand oils will cost from $ 20.
As you can see, the price of oil will depend primarily on the manufacturer, and secondly on what type of oil you use, synthetics, mineral or semi-synthetics. The oil filter on the Audi 80 will cost about $ 5. Further, the cost of spare parts will already depend on the type of breakdown.
Regarding the work itself, repairing the oil system or replacing the oil pump will cost from $ 50, plus replacing the sump gasket will cost from 1000 rubles. Replacing the engine oil with a filter $ 40-50, including consumables.
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