Suspension system Nissan Almera Classic is one of the most reliable components in a car, but even it has its weaknesses, which appear with mileage. Most often, owners are faced with the need to replace the silent blocks of the front control arms, since they take the brunt of the impact when driving on Russian roads. Ignoring signs of wear on rubber-metal joints leads to accelerated destruction of other elements of the chassis and deterioration of controllability.
Many car owners mistakenly believe that a knocking sound in the front of the car is a problem with shock absorbers or stabilizer struts, but in reality the source of the noise is often silent block. With correct diagnosis and timely replacement of these elements, you can significantly extend the life of the entire suspension and return the car to factory smoothness. In this article we will analyze all the nuances of choosing, diagnosing and replacing parts with Nissan Almera Classic.
Design and types of silent blocks on Nissan Almera Classic
The suspension of the model under consideration has its own design features, which directly affect the choice of spare parts for repair. The front suspension is made of the McPherson type, where each lever is equipped with two silent blocks: front and rear. It is important to understand that Nissan Almera Classic Two types of levers are used: collapsible and non-dismountable. This is a key point that determines the renovation strategy and budget.
On cars with mileage up to 100,000 km, there are often levers with pressed-in silent blocks, which cannot be replaced without removing the lever and using a special hydraulic press. However, on newer copies or after previous repairs, there may be levers where the rubber-metal hinges are changed separately. Collapsible lever allows you to save money by replacing only worn rubber, while replacing the entire lever assembly will cost much more.
⚠️ Attention: If you see cracks on the rubber part of the hinge that have reached the metal bushing, the use of such an element is strictly prohibited. This can lead to the lever being torn from the body during a sudden maneuver.
There are several manufacturers whose products are suitable for replacement:
- 🏆 Original Nissan - provides ideal geometry and durability, but is expensive.
- 🛠 Lemförder - a German brand that often supplies components to the assembly line is considered the gold standard.
- ⚙️ Febi Bilstein - good value for money, suitable for budget renovations.
Diagnosis of wear and characteristic symptoms
You can determine the failure of silent blocks not only using a lift, but also by the behavior of the car in motion. The very first sign is the appearance of extraneous sounds when driving over uneven surfaces. If you hear a thud or squeak coming from the front end, this is a sure sign that rubber-metal hinge lost its properties. Owners often confuse this sound with the knocking of stabilizer struts, so diagnostics must be comprehensive.
The second important symptom is deterioration in controllability. The car may begin to “float” on the road, especially when driving in a straight line. The steering becomes less responsive and there is more roll than usual when cornering. These phenomena are due to the fact that a worn silent block cannot hold the lever in a given position, which violates the wheel alignment angles. Wheel alignment in such cases it will go astray immediately after the procedure.
- Once every six months
- Once a year
- Only when there is a knock
- I never check
Also, pay attention to the condition of the tires. Uneven tire wear, especially along the edges or in patches, often indicates suspension problems. If you notice that your tires are wearing out faster than usual, you should urgently check all suspension components, including silent blocks and ball joints.
- 👂 Listen to the sounds when passing speed bumps - there should be no knocking.
- 🚗 Evaluate the behavior of the steering wheel at speed - whether there are any vibrations or beats.
- 🔍 Inspect the rubber elements for cracks and tears.
Selection of spare parts: original or analogues
When choosing spare parts for Nissan Almera Classic Many car owners are faced with a dilemma: buy original parts or be content with analogues. Original silent block from Nissan (part number often beginning with the prefix 54500) guarantees full compliance with factory specifications for rigidity and geometry. However, the price for such parts can be 2-3 times higher than the market price, which is not always justified with high mileage.
Analogues from well-known manufacturers such as Lemförder or Corteco, often offer even better quality rubber compounds than the original. It is important to pay attention to the date of manufacture, since rubber becomes tanned over time even on a store shelf. High quality tires should be elastic, without the smell of old plastic or oil.
Before purchasing, be sure to compare the geometry of the old and new silent block, since different manufacturers may have different sizes of the outer race or inner sleeve, which will complicate installation.
There are also budget Chinese analogs that can cost several times less. They should only be considered if you plan to sell the car in the near future or have an extremely limited budget. The durability of such parts often does not exceed 10-15 thousand kilometers, after which repeated repairs will be required.
⚠️ Attention: Avoid purchasing silent blocks without packaging and labeling. The absence of a brand and catalog number is a sure sign of a low-quality fake that can be destroyed during use.
Tools and preparation for replacement
To replace silent blocks with high quality, you will need not only a set of keys, but also a specialized tool. The easiest way is to remove the lever and replace the joint at a service station with a hydraulic press. However, if you plan to do the work yourself in a garage, you will need a set of mandrels for pressing and pressing rubber.
It is necessary to prepare the following tools:
- 🔧 Socket wrenches and sockets for 17, 19, 21 mm.
- 🔨 Hammer and pry bar for dismantling levers.
- ⚙️ Special mandrels for pressing out silent blocks (can be made from old pipes).
- 🛢 WD-40 or penetrating lubricant for treating bolts.
☑️ Preparation for replacing silent blocks
If you do not have experience working with a hydraulic press, it is better not to take risks and entrust the pressing to professionals. Incorrect force can deform the lever, causing it to fail. It is also important to prepare new bolts, since old ones often stick and break when trying to unscrew them.
What to do if the bolt does not come off?
If the bolt is stuck, do not use excessive force to avoid stripping the threads. Use heat (hair dryer or soldering iron) in combination with penetrating lubricant. In extreme cases, you will have to cut the bolt with a grinder, which will require more time to prepare the thread.
Step-by-step instructions for replacing silent blocks
The replacement process begins with dismantling the wheel and loosening the fastening elements of the lever. Tightening under load is critical for the correct operation of silent blocks, otherwise the rubber will be twisted and quickly fail.
First you need to loosen the bolt securing the lever to the steering knuckle and the bolts securing the lever to the subframe. Then, using a pry bar, you need to slightly lift the lever and knock out the ball joint bolt. After this, the lever can be freely removed. At this stage you will be able to assess the condition of all suspension elements.
The main mistake when replacing is tightening the lever bolts by weight. This leads to distortion of the rubber part of the silent block, which causes its rapid wear and the appearance of knocking noises after a couple of thousand kilometers.
If you are changing the silent block on a removed lever:
- Place the lever in a vice or press.
- Use a mandrel of the appropriate diameter to press out the old hinge.
- Clean the seat from dirt and rust.
- Press in the new silent block, making sure to go in the correct direction (if there is a misaligned bushing).
Installation and final tightening
After installing the new silent blocks, the levers are returned to the car. First, tighten the fastening bolts to the subframe and steering knuckle, but not completely. This is necessary so that the lever can move a little when installing the wheels. Make sure all fasteners are clean and have no damaged threads.
Lower the vehicle to the ground until the suspension is in its operating position. Only now can the final tightening of all bolts be made to the required torque. For Nissan Almera Classic The tightening torque of the bolt attaching the lever to the subframe is usually about 100-110 Nm, and the tightening torque of the bolt attaching to the steering knuckle is about 90-100 Nm. It is always better to check the exact data with the official instructions.
| element | Tightening torque (Nm) | Tool |
|---|---|---|
| Lever bolt to subframe | 105 ± 15 | Torque wrench |
| Lever bolt to knuckle | 95 ± 10 | Torque wrench |
| Stabilizer bolt | 25 ± 5 | Ratchet |
| Wheel nut | 110 ± 10 | Ratchet |
⚠️ Attention: After replacing the silent blocks, be sure to perform the wheel alignment procedure. Any intervention in the suspension geometry disrupts the wheel alignment angles, which will lead to rapid tire wear and deterioration of vehicle stability.
Frequently asked questions and answers
Is it possible to change only one silent block on one side?
This is technically possible, but not recommended. Wear usually occurs evenly on both sides. If one joint is worn out, the second one is most likely close to that condition. Replacing just one part can lead to an imbalance in suspension performance.
How to distinguish an original silent block from a fake?
The original is clearly marked with the Nissan logo and part number. The rubber should be uniform, without bubbles or inclusions. The packaging must also be of high quality, with clear printing. Counterfeits often have crooked markings and low quality rubber.
How long do silent blocks last on Nissan Almera Classic?
Under normal operating conditions, original silent blocks last from 80,000 to 120,000 km. However, the quality of roads and driving style can reduce this period to 50,000 km. Regular diagnostics allow wear to be detected at an early stage.
What should I do if there is a knocking noise after replacement?
If the knocking noise remains, check the correct tightening of the bolts, the condition of the ball joints, stabilizer struts and shock absorbers. Often the knocking is caused not by the silent block itself, but by other elements that were worn out at the same time. Also check that the rubber is not twisted during installation.
Do the lever assemblies need to be replaced?
It only makes sense to replace the lever assembly if the metal part of the lever itself is deformed or has cracks. If the metal is intact, it is more profitable and correct to replace only the rubber-metal hinges, preserving the original geometry of the lever.