Oil in the transfer case and axles of the UAZ 469: when, how much and what kind to fill


UAZ Patriot is one of the most popular SUVs on Russian roads. It was promoted to a leadership position in sales not only by its more affordable price compared to foreign analogues, but also by its excellent cross-country ability, which is relevant for domestic operating conditions. The car also deserves attention due to its excellent maintainability, unpretentiousness and ease of maintenance, which allows consumers to carry out simple technical tasks at home.

How to change the oil in the axle and transfer case of a UAZ Patriot.

Transmission units of an SUV, to some extent even more than similar units of other vehicles, require regular and timely maintenance, since the vehicle is often operated in difficult and extreme conditions. In this article, we will look at how often it is necessary to fill oil into the axles of a UAZ Patriot, how to replace the transmission lubricant on your own, and which fluid is most effective for the axles and transfer case of an SUV.

Regulations for changing oil in manual transmission

According to the recommendations of experienced car owners and specialists, the oil in the UAZ 469 manual transmission must be changed every 50-100 thousand km. Next, we will consider the most favorable conditions for which the specified regulation is suitable.

  • A mixed driving cycle is observed with the same mileage on the highway and in the city, without intense overloads and driving at maximum speeds
  • Towing of heavy trailers with a volume exceeding the permissible limit for the UAZ Hunter is excluded
  • Only original oil or its equivalent is poured into the gearbox.
  • The transmission operates without jerking or jerking, gears shift smoothly and effortlessly
  • There is no oil leakage from the seals. Their timely diagnosis is necessary to avoid not only oil leakage, but also the occurrence of corrosion processes inside the gearbox. The fact is that if the seals are not sealed properly, water can pass through them, for example, in rainy weather. The oil seals must be urgently replaced, then the box must be rinsed to remove any dirt deposits and new oil must be added.

DIY replacement instructions

The list of tools used for topping up is supplemented with a container for collecting waste liquid. Before starting work, the machine is brought into the inspection hole. Before changing the oil, warm up the car, using it for its intended purpose for at least 15 minutes. This promotes liquefaction and easy removal of waste. The replacement is done like this:

  1. Place a container under the bottom to drain used oil from the transfer case. Using a wrench, unscrew the plug located in the lower part of the crankcase. Unscrewing the fill valve speeds up the waste removal process.
  2. Wait for the liquid to drain and screw in the drain plug. Before installation, the part is cleaned of dirt.
  3. Lubricant is injected using a syringe. Filling oil with a watering can will not work. A technical syringe copes with this task better.
  4. Once the desired level is reached, the filling is stopped. The plug is returned to its place.

The work is completed by turning on the engine, which promotes uniform distribution of lubricant.

Overall dimensions of UAZ 469

UAZ 469UAZ 469B
Body typeSteel frame body, open, station wagon
Number of doors5
Number of seats7
Length4025 mm.
Width1805 mm.1785 mm.
Height2050 mm.2015 mm.
Base2380 mm.
Ground clearance (clearance)300 mm.220 mm.

When to change the oil in UAZ 469

For a UAZ-469 car, the oil in the transfer case, gearbox and axles is changed every 30-40 thousand km, depending on the condition of the fluid, as well as its level and operating characteristics. Premature replacement may be required if you frequently travel off-road or in city traffic jams with frequent stops, sudden starts and braking. Moreover, untimely oil changes can cause the appearance of characteristic signs indicating poor oil quality: these are extraneous sounds and noises, cloudiness and blackening of the oil, as well as a change in its consistency (it was rare, then it became thick) or insufficient level.

Patriot SUV refueling volumes

For UAZ Patriot, which has a 409 engine, refueling volumes have the following values:

  • 5l. fluid is required to fill the windshield washer reservoir.
  • Fuel tanks: the tank on the right and the tank on the right have the same volume, equal to 36 liters, this is according to the manufacturer, however, as practice shows, a little more fuel can be filled into both tanks.
  • Shock absorbers only need to pour 0.32l. liquids, but you should remember about the devices used in the suspension design.
  • Engine lubrication is required in a volume of 7 liters, and for the UAZ Patriot 31631 model the volume of lubricant is 4.2 liters.
  • The brake mechanism needs 0.6l. working fluid.
  • For a radiator with horizontal pipes, 14 liters will be required. liquids, and for heating the interior and cooling system of the power unit - 12 l.
  • The clutch drive needs 0.18l. liquids.
  • A manual transmission will require 2.5 liters.
  • For the steering mechanism we measure - 0.25l.
  • 0.8 l is poured into the transfer case.
  • Power steering consumes 1.1l. working fluid, for the UAZ Patriot 31631 model you will need 1.3 l.
  • As for the rear and front axles, their filling tanks require different amounts of fluid. The front axle requires 1.5 liters of oil, and the rear axle requires 1.4 liters of oil. As practice shows, it is necessary to fill slightly more than 1.4 liters into the rear axle housing. oil so that all the working elements inside are completely covered in lubricant.

Node purpose

The UAZ 469 transfer case is used to engage all-wheel drive. The mechanism is two-stage. This allows you to double the speed range for forward and reverse movement. Reducing torque when driving off-road reduces wheel slip.

UAZ 469 has a constantly engaged rear axle. The front axle is pluggable. Its inclusion is provided by the manufacturer for driving on low-quality surfaces.

IMPORTANT: It is prohibited to use the vehicle with the front axle constantly engaged when driving on high-quality road surfaces. Failure to comply with this rule will result in damage to transfer case components or jamming of rotating parts.

All filling capacities of the Patriot SUV

Everyone knows that filling tanks are units that require the presence of working fluid. By the way, the UAZ Patriot is equipped with two refueling tanks at once, and this allows the SUV to fill almost 2 times more fuel, almost up to 80 liters. Not all cars in this class can boast the same gas tank design.

Replacing engine mounts for UAZ Patriot

Rear hub oil seal UAZ Patriot

The refueling volumes in the SUV we are considering are determined by the following parts and mechanisms:

  • Auto clutch system;
  • Transmission;
  • Power unit lubrication system;
  • Transfer case;
  • Gasoline tanks;
  • Power steering mechanism system;
  • Window washer pump reservoir;
  • Engine cooling system 409;
  • Brake system;
  • Carters of 2 bridges.

Main technical characteristics of UAZ 469

UAZ 469UAZ 469B
Weight without load1600 kg.1540 kg.
Full load weight2400 kg.2280 kg.
Fuel tank volume78 l.
Drive unitFully pluggable
Highest speed at full weight90 km/h.120 km/h.
Control fuel consumption at a speed of 30 km/h.10.6 liters / 100 km.
Highway range at reference consumption 10.6 l/100 km730 km.
Braking distance with full load from an initial speed of 70 km/hNo more than 44.8 meters.
Fording depth0.7 meters
Maximum gradeability with driver and 1 passenger57 degrees
Maximum gradeability when fully loaded31 degrees
Maximum gross weight of towed trailer760 kg.

How much oil to pour into the axle and transfer case of UAZ 469

First generation 469, from 1972

Work on the creation of the UAZ-469 began in the 1950s, and the first prototypes were similar to the American Jeep. However, the car replaced its predecessor GAZ-69 only at the end of 1972 - then mass production began. Thanks to mass unification with the Volga engine base, the GAZ-21 SUV had high maintainability and aroused respect among Soviet auto mechanics. The UAZ-469 index was officially relevant until 1985, and then received the designation 3151.

However, in 2010, UAZ resumed production of the legendary 469 for the sake of producing a limited batch of the model, known under the index 315196. This car received the following improvements: spring front suspension, front disc brakes, power steering, Timken split axles with steering knuckles (from "Spicer" bridges), metal bumpers with plastic "fangs", a tailgate (from Hunter Classic) and a ZMZ-4091 engine with a capacity of 112 hp. With.

  • Transfer case oil: volume – 0.7 liters, tolerance and viscosity: API-GL-3-4, TSp-15K. TAP-15V, TAD-17I; SAE 75W-90
  • Rear axle gearbox oil – 0.85 liters; front - 0.85 liters; tolerance and viscosity: API-GL-3-4, TSp-15K. TAP-15V, TAD-17I; SAE 75W-90

Features of transmission, chassis and control systems

The unique characteristics of the UAZ 469 are largely due to the successful design of the transmission. This vehicle system consists of a dry single-plate clutch, a gearbox, a transfer case, a rear drive axle, a front axle, and wheel drives for an army modification of an SUV.

Technical characteristics of the gearbox:

  • type – 4-speed, mechanical;
  • synchronizers - in 3rd and 4th gears.

Gear ratios:

  • 1st gear – 4.12;
  • 2nd gear – 2.64;
  • 3rd gear – 1.58;
  • 4th gear – 1.00;
  • reverse gear - 5.22;
  • gearbox weight without lubrication – 33.5 kg;
  • The volume of oil in the gearbox is 1 liter.

Transfer case specifications: 2-speed, manual.

UAZ bridges

Gear ratios:

  • direct transmission – 1.00;
  • low gear – 1.94;
  • power take-off – up to 40%;
  • weight with hand brake, without lubrication – 37.4 kg;
  • volume of oil poured – 0.7 l.

Cardan transmission – 2-shaft, open.

Cardan shafts:

  • front – 2-hinge, combined;
  • front shaft weight – 6.9 kg;
  • rear – 2-hinged, tubular;
  • rear shaft weight – 8.25 kg.

Military bridges:

  • type – detachable, with gearboxes on all wheels;
  • gear ratio - 5.38;
  • final drive ratio – 2.77;
  • gear ratio of wheel gearboxes – 1.94;
  • front axle weight – 140 kg;
  • rear axle weight – 121.5 kg;
  • the volume of oil poured into each bridge is 1 liter;
  • the volume of oil poured into each wheel gearbox is 0.3 liters.

Collective farm bridges:

  • type – detachable;
  • final drive ratio – 5.13;
  • front axle weight – 120 kg;
  • rear axle weight – 100 kg;
  • the volume of oil poured into each bridge is 0.85 l.

You can distinguish military bridges from collective farm ones in the photo by the conical cap on the splined flange and the double final drive.

Chassis:

  • suspension - rigid, leaf spring;
  • springs – 7-9 leaf, elliptical;
  • shock absorbers – telescopic, double-acting;
  • wheels – steel, stamped;
  • tires - tube;
  • The recommended tire size is 215/90 R15.

Steering:

  • mechanism - worm type;
  • gear ratio – 20-21;
  • volume of oil poured – 0.25 l.

Brake system:

  • type – hydraulic, drum;
  • parking brake – transmission;
  • liquid volume – 0.52 l.

In general, the control systems of the UAZ 469 are reliable and durable.

Characteristics of the UAZ 469 engine

TypeGasoline, 4-stroke
LocationFront, longitudinal
Cylinder arrangementRow
Number of cylinders4
Operating procedure1-2-4-3
Cylinder diameter92 mm
Piston stroke92 mm
Compression ratio6,7
Power75 hp
Working volume2.5 l.
Torque166.7/2200 n*m
Supply systemCarburetor
Number of valves per cylinder2

It’s worth looking in more detail at gasoline consumption: With a reference consumption of 10.6 liters on the highway, the average gasoline consumption of the UAZ 469 is about 10.75/l. 100 km along the highway. And the maximum off-road gasoline consumption is approximately 17.25 liters. At 100 km.

Transfer case service

When operating a vehicle, it is necessary to regularly service the unit. For this:

  • A visual inspection is carried out for lubricant leaks at the locations of gaskets and rubber seals;
  • The fastening of the transfer case to the gearbox and the tightening of the propeller shaft bolts are checked;
  • The lubricant of the product is changed.

The oil in the transfer case and gearbox is changed at the same time. Each car owner determines the frequency of replacement independently. The manufacturer recommends changing the oil every 35 - 45 thousand mileage.

REFERENCE: When regularly driving a car off-road, it is necessary to change the transmission oil more often. This is due to high loads and the possibility of water entering the crankcase of the mechanism when fording.

Reviews

  • I fill the manual transmission with ZIC GFT 75W-85 gear oil. I previously used it on another UAZ and the oil performed quite well there. This oil also does an excellent job on my new SUV. The gears are switched on quite simply, which is good news. In cold weather the liquid does not thicken much and the box does not howl. So this is a great oil.
  • When servicing the gearbox, I use LIQUI MOLY Hochleistungs-Getriebeoil 75W-90 oil, since it is very affordable in my region, and besides, it is recommended by the manufacturer. Everything works quite well, gear shifting is easy, nothing rattles or vibrates. Overall, very pleased.
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