The generator and the storage battery are the main sources of energy for consumers of the vehicle's on-board network. The article discusses generator malfunctions, gives instructions on how to replace the Mazda CX 5 generator belt.
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Possible generator malfunctions and how to fix them
A faulty alternator can immobilize the vehicle. In addition, if the generator set stops working, the entire load to provide power to the on-board network falls on the battery. It starts to discharge quickly and after a while the car will not be able to move further. Such a situation on the way is dangerous, so you need to identify faults in time and eliminate them (video author - Andrey Florida).
The generator is an electromechanical unit, therefore mechanical and electrical malfunctions are possible.
Mechanical problems include the following:
- mechanical damage to the case;
- wear and tear of bearings;
- wear of the hold-down springs;
- wear or breakage of the belt drive.
Electrical faults include:
- breakdown of the diode bridge;
- short circuit, breakdown and breakage of the stator and rotor windings;
- wear or burnout of brushes;
- rotor runout;
- malfunction of the control relay;
- damaged wiring.
All that concerns mechanical problems, they are corrected by replacing defective parts and assemblies. On old-style generators, it is sometimes necessary to groove slip rings. If the stator or rotor windings are damaged, they are replaced as an assembly. Rewinding is possible, but economically unprofitable.
In the event of electrical problems, it is necessary to diagnose the circuit components, including checking the battery charging. Often car owners are faced with low voltage or overcharging. When overcharging, check the diode bridge and voltage regulator. Replacing them may solve the problem.
If the unit produces low voltage, then the reasons may be as follows:
Defective parts are replaced with new ones. With a heavy load, some consumers should be disconnected from the network. The discharged battery needs to be recharged.
When is belt replacement necessary?
A characteristic whistle serves as a sign of the need for replacement. A worn-out drive can be indicated by an indicator on the dashboard, showing a decrease in generator performance. Replacement is necessary if the belt drive breaks. In this case, the car will not be able to move.
Replacement is required if the drive has the following defects:
- cracks and breaks are signs of wear;
- frayed edges;
- traces of working fluids;
- weak tension.
Step by step guide to replacing the belt
Before the procedure, you should prepare a new consumable. It is recommended to change the tension roller together with the drive.
For the convenience of work, the machine must be installed on a lift or overpass.
The replacement procedure consists of stages:
- First, remove the crankcase protective cover by unscrewing the fastening nuts.
- Then you need to loosen the tensioner by turning the upper pulley, remove the belt.
- Next, a new consumable is installed.
- After installation, adjust the tension.
- Then we put everything in place in the reverse order.
The belt replacement procedure is simple. Therefore, it is better not to wait for it to break off on the road, but replace it at the first sign of wear.
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A structural element such as a drive belt is an important part of a belt drive. It is used to provide torque. Since the element is used under heavy loads, it may often require replacement.
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The heart of any car, the compact crossover Mazda CX-5 is no exception, is the motor. Without a working power unit, SUV operation is impossible. This is a rather complex system, which includes many subsystems, so its maintenance in Kazan, both planned and unscheduled, must be trusted by professionals - experienced and qualified minders. As part of the maintenance carried out, our masters provide such services as:
- complex and all its subsystems;
- Mazda, which can be both current and capital, consists in either replacing or restoring the main structural elements.
Diagnostics is carried out using a number of techniques, including visual inspection, computer diagnostics using a dealer scanner and troubleshooting, disassembly of the motor.
After identifying a malfunction and assessing the degree of deterioration of components and assemblies, the entire list of necessary work and their cost is agreed with the car owner of the compact SUV. Work can be either planned (strictly regulated by a Japanese manufacturer), or unscheduled (upon detection of faults), as well as recommended or mandatory.
The power unit required for high-quality and prompt repairs can be purchased by visiting the Mazda auto parts store at our technical center. There is a wide range of original and non-original components at competitive prices. The selection of parts is carried out according to the VIN-code, in the absence of the necessary spare parts, their prompt delivery is possible under the order.
Design features
The Mazda CX-5 engine is an all-new SkyActiv lineup that includes direct injection inline-fours:
- SkyActiv-G, gasoline, atmospheric, there are two of them - PE-VPS with a volume of 2.0 liters and PY-VPS with a volume of 2.5 liters;
- SkyActiv-D, diesel, twin-turbo SH-VPTS modifications with a volume of 2.2 liters.
Immediately, we note that the timing belt is the Mazda CX-5 with a chain drive. Therefore, such a category as the timing belt Mazda CX-5 does not exist in principle. And if the owner of this compact crossover is offered a Mazda CX-5, then one should stay away from such service stations. Either they cheat, or the skill level of their minders is extremely low. If we talk about the recent past of Mazda models and traditional internal combustion engines, then with a timing belt they had diesel engines of the MZR-CD line, and Duratec and Duratorq from Ford were also installed. And Mazda CX-5 is the first fully skyactive model.
Main types of work
The scheduled work that is performed as part of the maintenance of the power units of the compact crossover also includes the oil filter. This type of service is carried out at each maintenance, after 15 thousand mileage or 12 months of operation, although it is desirable even earlier. Note that two options are acceptable when replacing - either the Mazda Original Supra 0W-20, which is expensive, but with improved characteristics, or a cheaper alternative in the form of the Mazda Original Ultra 5W-30, the Japanese automaker allows such a replacement. You will need to purchase one canister of oil with a capacity of 5 liters.
Every 120 thousand, although this event may occur earlier.
The timing chain of the Mazda CX-5 is checked without fail, its condition, using a special device, the degree of tension. The tensioners are changed if necessary. - the procedure is rare, time consuming and very expensive.
If we talk about such a concept as a Mazda CX-5 belt, then it is, only not in the timing drive, but in the drive of auxiliary units. That is, there are two of them, the first is the Mazda CX-5 generator belt, which is also responsible for driving the air conditioning compressor, and the second drives the circulation pump, the pump of the engine cooling system. is performed when a significant degree of wear is detected (cracks, breaks, cord delamination or oiling of the working part) and the threat of breakage. Remember, the Japanese automaker does not regulate the replacement of this unit. If someone says otherwise, they are cheating. The mechanics of our technical center offer the car owner to replace the alternator belt only if there is a high probability of its breakage and a significant degree of wear.
As noted above, when detecting malfunctions, our masters repair the power unit, which can be:
- current, is to restore or replace individual nodes;
- overhaul, with complete dismantling, disassembly, washing, subsequent troubleshooting, crimping, grinding the necks and cylinder head, washing and steaming the crankshaft and cylinder head, repairing heads, and a number of other works.
After "" the motor is assembled and all parameters of its structural elements must be adjusted.
Also, if necessary, the turbine of the SH-VPTS diesel power unit is repaired.
Mazda CX 5 engines have long been known for their reliability and thoughtfulness. But even such excellent units have weak points. One of them is a rather weak alternator drive belt. Mazda CX 5 replacement of the alternator belt, can it be done independently without the help of assistants?
"Secret weapon"
Everyone who has watched the process of replacing a generator drive on a Mazda knows that this is a job for two: otherwise there will not be enough hands: hold the tensioner in the correct position with one hand (which, by the way, will still have to be reached, which is not easy), the second a stone's throw from the CX 5, with a third hand ... In general, the case for one is almost hopeless. But only almost! We use the "secret weapon".
We need:
- half a spanner key for 17;
- a piece of tube into which you can insert half of the key;
- a piece of reinforcement or strong rigid wire, in general - a pin.
A matter of technology
After the main problem is solved, the rest is a matter of technique. We throw our "secret weapon" onto the hexagon of the tensioner (it just fits under the key for 17), and with a wire we cling to any place convenient for this.
Having removed the hexagon, you need to unscrew the bearing, you can do this with an "asterisk" T50. Then you can shoot the video. It remains only to make a replacement - put a new drive belt and (immediately) a new roller. They are usually sold together in one set.
Assembly is carried out upside-down. In fact, everything is even easier than in words - try it!
