UAZ "Patriot" kingpin: description and replacement

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

In the front axle of Ulyanovsk-made cars (in particular, on the Patriot) there are pivot assemblies and constant velocity joints, which ensure the transmission of torque to the wheels in any of their positions. For the assembly to work properly, you need to know how to maintain and change the kingpin. UAZ "Patriot" (see the photo of the node in the article) is also equipped with it. So, let's look at what this element is for and how to replace it correctly.

Characteristic

What is a king pin? UAZ "Patriot" is equipped with this mechanism from the factory.

The kingpin is a rod with a pivot joint of the steering knuckle and the ball joint. The element is located in front of the car. The kingpin provides the ability to steer the wheels without interrupting the torque supply.

Functions

This mechanism acts asaxis around which the steering knuckle swings. Also, the kingpin is a connecting component that combines the ball and steering knuckles into a single unit. The kingpin provides the necessary rigidity and perceives the moments of forces from the steering knuckle.

Varieties

There are several types of these mechanisms:

• Factory kingpin UAZ "Patriot". The device of the element assumes the presence of plastic liners with a spherical support. The manufacturer produces lightweight components that require gap adjustment. Do-it-yourself replacement of the pivots for the UAZ Patriot is carried out as the liners wear out. The cost of factory elements is from 5 to 8 thousand rubles per set. The resource is up to 50 thousand kilometers.
• Reinforced. This is a new UAZ "Patriot" king pin. Comes with bronze inserts. Often used by off-road enthusiasts. The mechanism is produced in the form of a repair kit. Who produces such a kingpin? UAZ "Patriot" can be equipped with elements from the companies "Sollers", "Vaksoil" and "Autohydraulics". The mechanism is marked "for especially heavy loads." Unlike the factory plastic ones, the bronze one is a more durable kingpin. UAZ "Patriot" with such an element perfectly withstands shock and rotary loads. Reviews say that the element has a resource of 100 thousand kilometers. In this case, it is necessary to lubricate every 20 thousand. Reinforced kingpins can be purchased for 8.5 thousand rubles (price per set).
• Bearing. It is a good analogue of the factory. The UAZ "Patriot" kingpin on bearings is notrequires constant adjustment and has a long service life. The cost of such a mechanism is 2 thousand rubles per unit.

What to choose?

When choosing one or another type of spare part, it must be remembered that each type is suitable for different operating conditions. For example, if you drive mainly in the city, you need to buy a bearing kingpin. UAZ "Patriot", equipped with such a mechanism (with plastic inserts), is very easy to control. If you often drive in off-road conditions, use elements with bronze liners. However, keep in mind that the steering wheel will be very tight for the first 2 thousand kilometers. After this period, the mechanism will finally run in and will be ready for full operation. Bearing kingpins have average characteristics on asph alt and dirt roads. Reviews advise purchasing products from the Altai company Vaxoil. She offers kingpins with a castor angle of +8. This makes driving much easier.

Why does it fail?

This mechanism fails due to the destruction of the rim of the cups, which closes the ball. At some point, this detail simply splits. As soon as the part loses its shape and strength, play appears.

You can determine the malfunction by the characteristic knock and creak of the mechanism in the front of the car. Also, the part fails due to natural metal fatigue.

How to replace? Tools

To replace the king pin on a UAZ Patriot car, you will needfollowing tools:

• Ratchet socket set.
• Set of open end wrenches.
• Grease gun with grease or lithol.
• Hammer.
• Puller.
• Set of new pivots.

An important point - the mechanism changes in pairs, even if the adjacent element is in good condition.

Instructions

So, how to replace this mechanism yourself? First, the car is installed on a viewing hole or lift. Next, you need to hang out the front wheel with a faulty kingpin. Then you need to get to the tie rod bipod. The nuts must be unscrewed with a 24 wrench. The pivot assembly grease bolt is also removed.

On UAZ "Patriot" cars, it is located in the middle (between the tie rod bolts). Now we need to remove the top kingpin cover. To press it out, you need to use a puller. We screw the tool bolt into the lubrication hole. Next, the puller nut will move down along the thread, thereby pulling the kingpin cover up. So we will remove it from the body of the fist. We press out the lower part of the element in the same way. Next, we remove the ball and carefully clean the steering knuckle from dirt and dust. Installing a new pivot assembly. An important point - before installation, the mechanism must be liberally treated with grease. This is Litol-24, or grease. Next, the bottom cover is installed in place. It is mounted on the bolts of the tie rod bipod. The latter is also fastened into place, and its nuts are tightened, firmly pressing the cover into the body.

Next, the top cover is installed. She will not sit in the body to the fullest. Therefore, you need to gently tap on it with a hammer. Next, the pivot assembly is “syringed” through a specially designated hole. Then a bolt plug is screwed into it. After installing the tie rod bipod, the wheel is installed in place. The car is removed from the jack. A similar operation is performed with the adjacent pivot mechanism of the UAZ Patriot car.

Additional recommendations

When replacing this mechanism, try to avoid tilting the top cover when installing it. To do this, it is better to retract it into the body using 4 bolts, and tighten them crosswise.

However, even with the correct installation technology, there will still be a small gap near the cover. If water gets in here, the assembly will quickly fail. Therefore, it is so important to ensure the tightness of the connection. To do this, you need to install several rubber gaskets. They can be made independently, from a bicycle or car camera. During operation, the element will “grind” and the need for gaskets will disappear - after 500 kilometers we check the gap, remove the rubber elements and completely tighten the bolts. The lid should fit snugly, without gaps.

Why can't you immediately tighten a new part too hard? It's very simple - it can crack.

Therefore, we wait until the part is completely run in, using the same gaskets. Another point - if you install reinforced pivots with bronze liners, do not forget to adjust them after a thousand kilometers. Run-in should be done in a gentle mode. With proper installation, the element will last about one hundred thousand kilometers.

Conclusion

So, we found out what the king pins are and how to replace them yourself on a UAZ Patriot car. As you can see, the procedure can be done by hand. However, this requires a special puller. Do not forget about the gaps (we seal them with gaskets), which will subsequently be run in.