Owners Nissan Almera Classic They often encounter the problem of rear suspension sagging after several years of use. This phenomenon is typical for many budget sedans, but it is on this model that it manifests itself especially noticeably, affecting ground clearance and ride comfort. The solution to a problem is often spacer rings, which allow you to return the car to its factory height without purchasing new springs.
However, simple installation of these elements requires a deep understanding of the suspension design and adherence to technology. Incorrectly selected bolt sizes or incorrect tightening order can lead to rapid wear of the shock absorbers or even rod breakage. In this article we will look in detail at how to choose the right ones components, what types of spacers exist and how to do the work yourself, minimizing risks.
Design features of the Almera Classic rear suspension
To understand the principle of operation of spacer rings, you must first study the structure of the rear beam Nissan Almera Classic. Unlike multi-link suspensions, a semi-independent beam is used here, where the shock absorbers are attached directly to the body, and the springs rest on the lower platform of the beam.
Over time, the springs lose their elastic properties, which leads to a decrease in suspension travel. Installation spacer rings allows you to compensate for this loss by increasing the distance between the coils of the spring in the compressed state. It is important to note that these elements do not change the stiffness of the suspension, but only change its initial actuation point.
It must be taken into account that changing the suspension geometry affects the wheel alignment angles. If the spacer height is incorrectly selected, the wheel alignment may change, which will lead to uneven tire wear. Therefore, before starting work, it is recommended to check the current condition of the suspension and make sure there are no backlashes in the silent blocks.
Types of spacer rings and materials of manufacture
There are various options for spacers on the auto parts market, which differ in material and design. The most common type is rubber or polyurethane rings that are inserted between the coils of the spring. They provide a smooth ride and dampen vibrations transmitted to the body.
A more rigid option are metal spacers, which are often used in sports tuning. For everyday use Nissan Almera Classic they are less suitable, as they can create unnecessary loads on body elements. Polyurethane is the golden mean: it is durable, resistant to chemicals and does not deteriorate when exposed to oil or moisture.
When choosing a material, you should pay attention to the density. A material that is too soft may not withstand the weight of the car and will quickly deform, while a material that is too hard will make the suspension “prickly.” For budget sedans The optimal choice is considered to be products made of high-strength polyurethane with a density recommended by the manufacturer.
Sizing and Compatibility Criteria
One of the most common mistakes when purchasing is choosing the wrong ring size. It should ideally match the diameter of the spring and its pitch. If the ring is too wide, it may warp when compressed, causing it to jam. If it is too narrow, it will jump out of the groove while moving.
Standard sizes of spacer rings for rear suspension Nissan Almera Classic usually vary between 20-30 mm. However, before purchasing, it is necessary to measure the current drawdown and select the height so as to restore the clearance to factory values. It is not recommended to raise the car by more than 30-40 mm, as this critically changes the operation shock absorbers.
It is also important to check compatibility with the specific year of manufacture. Springs with slightly different characteristics could be used in different production batches. It is best to remove the old spring and attach a new ring to it for a visual inspection. This will eliminate the risk of purchasing an incompatible product.
- Rubber
- Polyurethane
- Metal
- Didn't install
Step-by-step instructions for installing spacers
The installation process does not require complex equipment, but does require a jack and supports. You will need to remove the wheel, unscrew the lower shock absorber bolt and compress the spring. Safety precautions plays a primary role here, since the spring is under high tension.
To begin, jack up the car and place a safety stand under the body. Remove the wheel and unscrew the lower bolt securing the shock absorber to the beam. Gently lower the beam to release the spring. Now you can remove the old spring if it has sagged too much, or simply make room for inserting a ring.
Paste spacer ring into the spring, making sure that it fits snugly against the coils and is not distorted. Reassemble the assembly in the reverse order, tightening the shock absorber mounting bolt with the required force. Use a torque wrench to avoid stripping the threads.
☑️ Preparation for installation
After installation, it is necessary to check the suspension travel. Press the car body in the area of the rear fender several times until the spring snaps into place. Make sure the spacer does not come out when driving. If everything is in order, you can lower the car to the ground.
What to do if the spring does not compress?
If the spring is heavily rusted and will not compress, do not use excessive force. Use a special spring remover or heat the contact area to remove corrosion. Otherwise, the threads of the bolts may be damaged or the beam may be deformed.
Common Mistakes and Precautions
Many owners ignore the condition of their shock absorbers before installing spacers. If the shock absorber is already worn out, increasing the spring travel will lead to its rapid failure. Shock absorber must work in tandem with an elastic element, and if one of them is faulty, the entire system does not work correctly.
Another mistake is using spacers without checking the condition of the shock absorber mounts. The life of the supports is limited, and if the load increases, they may collapse. This will lead to knocks and vibrations in the rear of the body. It is recommended to immediately replace the supports when installing new rings.
Never attempt to install a spacer into a spring that is under load without the use of special tools. This may cause injury. Always lower the beam until the spring is completely unloaded before starting work.
⚠️ Attention: The use of metal spacers without appropriate springs can lead to the destruction of the body in the places where the rear beam is attached due to stress concentration.
⚠️ Attention: It is prohibited to install spacers with a thickness of more than 40 mm without replacing the shock absorbers with extended ones, since the rod may fly out of the body when the suspension is fully compressed.
Before installing the spacers, clean the spring from dirt and rust by treating it with an anti-corrosion compound. This will extend the life of both the spring itself and the spacer ring.
Impact on vehicle performance and service life
Installation spacer rings has a positive effect on the appearance of the car, eliminating the “down to earth” effect. However, this also affects dynamics and handling. The rear axle becomes a little stiffer, which can improve cross-country ability, but worsen comfort on small bumps.
The service life of spacers directly depends on the quality of the material. Polyurethane products can last 5-7 years, while cheap rubber often breaks down after only 1-2 years. Regular visual inspection allows you to notice the beginning of destruction in time and prevent breakdown.
Changing the suspension geometry inevitably affects the wheel alignment angles. Ignoring this stage will lead to rapid wear of the rubber and deterioration of directional stability.
| Parameter | Factory value | After installation (+20 mm) | Recommendation |
|---|---|---|---|
| Ground clearance (rear) | 155 mm | 175 mm | Optimal for the city |
| Suspension stiffness | Basic | A little higher | Minor change |
| Shock absorber stroke | Full | Reduced | Check stops |
| Camber angle | -1° 30' | Changes | Correction required |
Properly selected spacers restore ground clearance, but require mandatory checking of wheel alignment angles after installation.
Compatibility Chart and Dimensions
For ease of selection, we have prepared a table with the main parameters of spacers that are most often used on Nissan Almera Classic. Please note that dimensions may vary slightly depending on part manufacturer.
It is important to note that the spacer sizes for the front and rear springs are different. In this context, we are talking specifically about the rear suspension, since it is there that the problem of subsidence is most relevant. Front suspension Almera Classic has a different design and requires different approaches to adjusting clearance.
When ordering spare parts, please indicate the vehicle's VIN code. This will help the manager accurately determine the type of springs installed at the factory and select a compatible set. Errors in selection can lead to the spacer simply not fitting into the spring.
So, installation spacer rings is an effective and inexpensive way to restore the ground clearance of your car. The main thing is to approach the issue responsibly, choose high-quality materials and follow installation technology. Then the suspension will serve for a long time and delight you with comfort.
⚠️ Attention: Increasing the ground clearance by more than 40 mm without replacing the springs with reinforced ones can lead to the destruction of the upper cups of the body due to exceeding the permissible loads.
Regularly checking the condition of spacers and shock absorbers will avoid sudden breakdowns and ensure driving safety.
Frequently asked questions and answers
Do I need to change shock absorbers when installing spacers?
If the shock absorbers are in good condition and have sufficient travel, they can be left. However, with a significant increase in ground clearance (more than 30 mm), it is recommended to replace them with elongated analogues to avoid the rod flying out.
How often should spacer rings be checked?
It is recommended to inspect them at every maintenance or every six months. Pay special attention to the condition of the polyurethane or rubber for cracks, delamination or deformation.
Is it possible to install spacers yourself?
Yes, you can do this yourself if you have a jack, supports and a basic set of tools. However, it is important to take precautions when working with a tensioned spring.
Does installing spacers affect the vehicle warranty?
If the car is still under warranty, installing any modifications to the suspension may result in denial of warranty repairs to the suspension components. Please check this point with your authorized dealer.
What spacer material is better to choose?
For Nissan Almera Classic Polyurethane rings are best. They have the optimal combination of rigidity, durability and cost compared to rubber and metal.