How to put a generator belt on a gazelle business

Insufficient belt tension impairs airflow to the radiator of the cooling system and leads to engine overheating and increased belt wear.

If the belt tension is too high, the bearings of the fan drive and the tension roller may fail.

With a properly adjusted tension, the belt should sag by 8–10 mm when a force of 40 N (4.0 kgf) is applied in the middle between the fan pulley and the tension roller.

Belt tension is adjusted by moving the tension roller.

Replacing and adjusting the tension of the drive belts of units with the ZMZ-402 engine

We loosen the upper and lower mountings of the generator (see Removal and repair of the generator).

We bring the generator to the cylinder block.

We remove the belt from the pulleys by passing it through the fan impeller, similar to removing the fan drive belt.

We put new belts on the pulleys.

We stretch the fan drive belt, moving the idler pulley away from the cylinder block, and tighten the upper and lower mountings of the idler pulley.

We tighten the generator drive belt in the same way, moving the generator away from the cylinder block, after which we tighten the upper and lower generator mounts.

We check the adjustment of the belt tension by applying a force of 4 kgf to the middle of the upper branches.

The deflection of the generator drive belt should be 8-10 mm, and the fan drive belt should be 7-9 mm.

Repeat the adjustment if necessary.

Replacing and adjusting the tension of the drive belt of units with the ZMZ-406 engine

Tighten the idler pulley bolt.

===========================================================================
UMZ-4216 - Injector Gas engine class Euro-3 or Euro-4. There are 14 modifications for Gazelle and Sobol cars with old and new frames.
AT model range there are motors with and without a compressor, with and without a power steering pulley. Under the 92nd and 95th gasoline.

Replacing accessory drive belts is a fairly common operation on motors.
Belt resource mileage varies greatly depending on the manufacturer, and on operating conditions (tension control, roller alignment, pulley profile) and is in the range: about 50,000 km - domestic belts and up to 150,000 km high-quality imported ones.

The need for replacement is determined after a visual inspection by a specialist.
Indications for replacement: cracks, delamination of the frame, excessive sagging (impossible to stretch with a roller). Also, when replacing belts, it is necessary to inspect the condition of the tension rollers and the tension mechanism itself (for a poly-V-belt).
Often, misalignment of the tension rollers or the tension mechanism can be the cause of increased wear of the belt, or its edge, or its slipping off the pulleys - in this case, it is necessary to identify the problematic roller and replace it, or eliminate the cause of the misalignment (for example, a broken or bent roller bracket, power steering, etc.).

The UMZ-4216 engine has two types of belt configuration:
1. Option: three v-belt: alternator and pump belt, electric fan clutch belt, power steering belt.
If an air conditioning compressor is installed, then as a rule, it goes on the generator belt creek.

Option 2: two belts: a poly V-belt for a generator, a pump, an electric fan clutch and a wedge belt for a gur pump. It can be with or without an air conditioning compressor.

We have in stock the entire line of required sizes and types of belts, rollers, tensioners, brackets, both domestic and foreign production of well-known brands.

Replacing the Gazelle timing belt is done after the car has traveled eighty to ninety thousand kilometers.

A separate case involves a broken timing belt, when the car owner simply does not check its condition. This situation is fraught with calling a tow truck to transport the car to the nearest service station and subsequent engine repair. However, it can be avoided if every forty thousand kilometers you visit a car service and check the timing belt.

Gazelle Timing Replacement Price:

We recommend visiting our car services in Moscow if you find:
- changing the width of the belt in some places,
- oil stains on the belt,
- obvious cracks that usually appear when the belt is bent,
- other defects.

It is important to check the timing belt in a timely manner, because the Russian climate is characterized by cold winters and regular temperature changes in autumn and spring. At the same time, the Gazelle factory maintenance schedule assumes other operating conditions. As a result, the timing belt can last half the time allotted by the manufacturer. Its breakage can lead not only to the replacement of the belt, but also to the repair of the cylinder head.

If a timing chain drive is installed on the Gazelle, it is more reliable than a belt drive. The service life of the chain reaches three hundred thousand kilometers. The reason for its reliability in front of the belt is increased strength. However, the chain drive should also be checked every seventy to eighty thousand kilometers. It is difficult to visually determine the wear of the timing chain, since the degree of tension is checked in it. stretched chain may move one link and cause engine failure. The first sign indicating the need to replace it is a characteristic roar.

The advantage of a timing belt over a chain is that it is economical in terms of maintenance and replacement. In addition, a running timing belt makes less noise.

The final price of replacing the gas distribution mechanism drive Gazelle is affected by its condition. Our specialists often had to repair cars that turned out to be hostages of an unprofessional replacement of the timing drive. To clarify the cost of installing a new Gazelle timing drive, call the number listed on the car service website.

When diagnosing a timing belt, it is possible to replace tensioners, rollers and dampers.

The GAZelle car in our country is the most demanded commercial vehicle. In this regard, it is constantly in operation, which leads to breakdowns. One of the most common is damage to the water pump and alternator drive belt. This malfunction is signaled by a special whistle coming from under the hood. Replace it under the power of every motorist.

You will need

• - keys for 10, 12, 13;
• - wrench or mounting blade.

Instruction

Park the vehicle on a level surface and block the wheels. Open the hood. Disconnect from battery"negative" terminal. Remove the front panel and grille. To do this, take a 12 key and unscrew two bolts on the right and left sides of the panel. With a 10 key, unscrew one bolt under the hood lock and unscrew the two bolts that hold the decorative grille from below. Although the operation of the pump and alternator drive belt on the ZMZ-402 engine is not difficult, however, difficulties may arise due to the cramped space under the hood. When working, it is better to use gloves so as not to get hurt on sharp corners or a warm motor.

Remove the front panel and grille from the vehicle and place them side by side at a distance that the hood latch cable will allow. Take a 12 wrench and loosen the belt tensioner bolt on the generator. Slide the alternator towards the engine with a suitable wrench or mounting spatula. Belt weaken. Take the 12 and 13 wrenches and loosen the lower tensioner pulley nut, and then with the 13 wrench loosen the nut of the tensioner itself.

Slide the roller towards the engine. Remove the fan belt from the crankshaft pulley by threading it between the fan blades and turning it. Also remove the water pump belt. Install new belts, front panel and grille in reverse order. In this case, you can not tighten the lower middle bolt of the panel, since the strength of the remaining ones is sufficient. The deflection of the water pump and generator drive belt when pressed with a force of 4 kgf should be 8-10 mm. Connect the negative terminal to the battery and start the engine. Give the generator maximum load - turn on the high beam, heater, car radio and press the accelerator. The characteristic “whistle” of the alternator belt should not be heard.

An article on how to replace the rollers and bearings of the generator belt drive on the Gazelle Next and Business with a Cummins 2.8 engine. I will show how to save decent money by replacing roller bearings, you will find out which bearings to install, their cost and economic feasibility.

Bearing NTN 6203 idler pulley Gazelle Cummins

A couple of tips before you specifically climb everything to disassemble:

1) Start repairs in the morning, so that if something happens, you can rush to the store, suddenly break off the bolt, twist the neck of the tension roller, cut the belt, etc.

2) Make sure in advance that the tensioning mechanism on the roller is in working condition. Unscrew the case air filter or from below the plastic protection and a head of 16 with a ratchet or a knob, check the progress of the tension roller.

I had a jammed tension roller, the day before the repair I tapped it, filled it with WD under the cover and the next day after the trip it already worked as it should.

We start the repair by removing the air filter housing, remove the power steering bracket, pull out the diffuser and viscous coupling, I already described all this in the article on replacing the viscous coupling www.drive2.ru/l/6902192/

We squeeze the roller and remove the alternator belt from all pulleys.

Loosen the tension roller to get the belt

Alternator belt with mileage 137,000 km, 6PK 2565 for TerraFrigo refrigerator

By the way, the narrow 6PK belt never squealed or whistled.

Now you need to troubleshoot all the Cummins Gazelle generator belt drive units that sit on bearings. This is quite easy to do by twisting the pulleys with your hand and shaking, there should be no backlash, noise, clicks, if it gives into the hand when the bearing is scrolled, this is already a big output and the balls jump over potholes in the cage or corrosion craters.

Defective bearings

Checking for defects:
- pump
- viscous coupling support
- power steering pump
-generator
- top support roller
- lower support roller
-tension roller
- an air conditioner or refrigerator compressor, if any. There are bearings in all these nodes and it just makes no sense to change everything in a row, and it’s expensive in terms of money.

Cummins Gazelle roller numbers and estimated cost:
Tension roller engine number Cummins ISF 2.8 5262500 1700r
Lower intermediate roller, Cummins ISF 2.8 engine 5254599 1300r
Upper intermediate roller, Cummins ISF 2.8 engine 5254598 1300r
Fan support Gazelle engine Cummins ISF 2.8 5270378 3700r

The downside of buying assembled rollers is their high cost and you can get into poor quality bearings.
Native rollers go without problems far beyond 100,000 km, it makes no sense to change them according to the regulations.

I have revealed for 138,000 km of run only 2 rollers with play, upper and tension.
Repair will be done by replacing roller bearings. But first you need to decide which company to put and for what money.
We leave for bearings and along the way we call shops on the phone.

Calling bearing shops

The best bearings in the world are considered:
-SKF headquarters Sweden, main market Europe, . Many factories and representative offices around the world, so not only Sweden, but also Germany, Italy, Japan and even China and other Asian countries are often indicated as the country of origin, excellent quality, but exorbitant prices, many fakes.

FAG / INA Germany, one of the most famous and popular brands dates back to the end of the 19th century and is associated with the name of one of the founders of the bearing industry, the man who invented how to produce absolutely round steel balls - Friedrich Fischer (the eternal rival of SKF) .
In 2001, the FAG brand was merged with another German holding INA and a powerful corporation for the production of bearing products was formed. Excellent quality, but as expensive as SKF.

NTN / SNR Japan / France, bearings are perfect for installation in critical units, where reliability and high performance of the product are critical. In the latter, they are not inferior to the widely used bearings of world-renowned European manufacturers FAG and SKF. Currently, the NTN brand has been merged with the French SNR since 2007, prices are much cheaper than competitors.

NSK Japan, widespread Japanese-made bearings due to attractive prices, are usually used where super reliability is not needed, although they do their job well, experts note that quality is reduced in pursuit of attractive prices, when these bearings are used in automotive technology, the resource is more than enough. In the 1990s - 2000s, the main production was concentrated in Asian countries, primarily in China, many factories in Europe, Japan, and other countries were liquidated

KOYO Japan, excellent high quality bearings, they also cost a lot of money, if you catch your eye, you can safely take it.

NACHI Japan, these are bearings of good quality and affordable price range, are gradually capturing a part of the market from NTN, KOYO and NSK, you can safely take it, several times cheaper than the top giants.

Let's go to the store))

At the end of the working day, they found only one working store until 19:00 in the South of St. Petersburg, st. Zastavskaya d.14

Bearing shop st. Zastavskaya d.14

Boutique bearings

Showcase with bearings

In the store, two bearings were purchased for the tension and upper roller 6203 from NTN for 145 rubles.

Bearing 6203 from NTN

Price for bearing 6203

The lower roller bearing was from Nachi for 600 rubles, it comes in two rows, which is why such a price.
The bearing for the fan support was only from Craft for 600 rubles. this shitty China, although in the factory version, did not take it. As far as I remember, a fan support bearing was installed on the Gazelle Business Russian production Vologda VBF costs about 600 rubles.

We go home to put until it gets dark.
Everything is pretty quick and simple, we take the head at 30 and press out the old bearing with a hammer.

We will press out the head

We knock out the bearing, it goes pretty easily

Lubricate with oil and carefully press in the new bearing. Business for five minutes. We assemble the roller and install it on the engine.