Car suspension system Nissan Almera Classic plays a critical role in ensuring driving comfort and safety. The rear shock absorbers, a key element of this system, lose their damping properties over time due to natural seal wear and oil leakage. Ignoring this problem can lead to accelerated destruction of other chassis components, including springs and silent blocks.
The process of replacing shock absorbers on this model does not require extreme skills, but has a number of specific nuances characteristic of the B10 platform. Many owners are faced with the problem of the rod jamming or difficulties in dismantling stuck bolts. The right approach to preparation and selection of tools will allow you to complete the job quickly and efficiently, returning the car to factory smoothness.
Suspension symptoms and diagnostics
Determine the need to replace the rear shock absorbers with Nissan Almera Classic possible based on several obvious signs that appear during operation. The most common symptom is a characteristic knocking or thud in the rear of the body when driving over bumps, especially at low speeds. If you feel that the car begins to βfloatβ at high speed or its body sways strongly after driving through a hole, this is a sure sign that the dampers are losing their effectiveness.
A visual inspection can also tell a lot about the condition of the suspension. Inspect the shock absorber struts for traces of oil or leaks on the housing. Even a small amount of oil indicates that the rod seal has lost its tightness, and the gas-filled shock absorber has begun to lose its properties. Pay attention to the condition of the rubber bumpers and boots: if they are torn or deformed, dirt gets inside the mechanism, which accelerates wear.
Uneven tire wear can also indicate problems with the shock absorbers. When the damper no longer keeps the wheel in constant contact with the road, the rubber begins to βjumpβ on the asphalt, which leads to the appearance of spots on the tread. In such cases, replacement rear shock absorbers becomes not just a recommendation, but a necessity to maintain safety and controllability.
Selection of spare parts and necessary tools
Before starting work, you need to decide on the choice of components. For Nissan Almera Classic The market offers many options: from original spare parts to high-quality analogues. The original is usually marked Nissan 54010-3JA0A, but its cost can be high. An alternative is proven brands such as Kayaba, SachΡ or Cofa, which are often used as factory suppliers and provide a decent resource.
Don't forget that when replacing shock absorbers, it is strongly recommended to change accompanying elements, such as upper supports, boots and bump stops. Installing new shock absorbers on old supports often leads to rapid failure of the new parts due to jamming or uneven loading. The components must be suitable specifically for the rear axle, since the design of the rear suspension is different from the front.
To perform the work efficiently, you will need a set of specialized tools. A standard set of wrenches and sockets may not cope with heavily stuck bolts, so having an impact wrench or a powerful socket will be a big plus. Spring clips are also critically important if you plan to replace the shock absorber and spring assembly, although on the Almera Classic it is more common to replace only the shock absorber itself.
- π§ Set of sockets for 12, 14, 17, 19 and 21 mm with extensions
- π¨ Hammer with rubber and metal attachment for knocking out fingers
- βοΈ Wheel wrench and jack (preferably two or a stand under the body)
- 𧴠Penetrating lubricant such as WD-40 or equivalent for processing threaded connections
Step-by-step instructions for dismantling and installation
It is best to carry out the work in a pit or a lift, but in the absence of such conditions, you can get by with two jacks. Before lifting the vehicle, be sure to apply the handbrake and place wheel chocks under the front wheels. Raise the rear of the car, remove the wheels and securely place the body on safety stands. Working under a vehicle supported solely by a hydraulic jack is strictly prohibited.
Start by removing the lower shock absorber mount. This bolt is often very acidic, so treat it generously with penetrating lubricant beforehand. Unscrew the nut, then knock out the fastening pin using a hammer. If the finger does not give way, you can slightly heat the joint, but be careful not to damage the rubber silent blocks of the lever.
Next, move on to the upper mount in the wheel arch. Remove the plastic decorative cap and unscrew the stem nut. To do this, you will need to keep the rod itself from turning. If the rod rotates together with the nut, use a special hex wrench or insert a flat-head screwdriver into it. After unscrewing the nut, carefully remove the shock absorber from its seat.
- π© Before installing a new shock absorber, lubricate the threads of the rod and nuts with non-stick lubricant
- π οΈ Use new bolts and nuts as old ones may not withstand re-tightening
- βοΈ Check the condition of the boot and bump stop before installing it on a new part
βοΈ Checklist before starting work
What to do if the rod does not rotate?
If the shock absorber rod rotates with the nut, do not try to hold it with pliers, as this may damage the threads. Use a special hex wrench, which often comes with a new shock absorber, or insert a rod of a suitable diameter into the hole in the rod. In extreme cases, you can use a vice to hold the rod in it, but do this very carefully so as not to bend the part.
Features of tightening and setting the suspension
After installing a new shock absorber, it is important to tighten all fasteners correctly. The lower fastening is tightened to the torque specified by the manufacturer, usually about 90-100 Nm. However, the key is to tighten the top stem nut. This operation must be performed with the suspension loaded, that is, when the car is on its wheels. If you tighten the nut on a suspended car, the rubber bushing of the support will be twisted, which will lead to its rapid destruction and the appearance of extraneous noise.
Follow a simple sequence: Lower the car so that the wheels touch the ground without the weight pushing all the way down the suspension, or have a helper gently rock the car up and down. At this point, tighten the stem nut as far as it will go, but without excessive force to avoid stripping the threads. After this, you can completely lower the car to the ground and finally check the tightness of all bolts.
Don't forget to check the wheel alignment after replacing suspension elements, especially if you touched the mounting of the arms. Although replacing rear shock absorbers rarely affects wheel alignment, vibrations during removal could throw off the settings. For Nissan Almera Classic The rear suspension is semi-independent, and even small deviations can lead to accelerated tire wear.
β οΈ Attention: It is strictly forbidden to tighten the nut of the upper fastening of the shock absorber rod when the suspension is in an unloaded state (the car is hanging on a jack). This will lead to twisting of the rubber bushing of the support and its rapid failure.
- Gas (harder, more stable)
- Oil-based (softer, cheaper)
- Hydrogas (golden mean)
- Original Nissan
| element | Recommended tightening torque | Installation Features |
|---|---|---|
| Bottom mounting bolt | 90-100 Nm | Check the condition of the lever bushing |
| Rod nut | 25-30 Nm | Tighten only with loaded suspension |
| Spring fastening | Without moment (fixation) | Make sure the spring is seated in the grooves |
| Stabilizer bolt | 15-20 Nm | If the stabilizer has been removed |
The main mistake when replacing is tightening the rod nut while the car is suspended. Always perform final tightening with the wheels touching the ground to avoid twisting the rubber bushings.
Common mistakes and advice from professionals
Experienced mechanics highlight a number of mistakes that beginners often make when replacing shock absorbers on this model. One of the most common is an attempt to knock out the lower fastening pin without first treating it with penetrating lubricant. This leads to stripped threads or broken bolts, making repairs much more difficult. They also often forget to check the condition of the lower arm silent blocks, which may have hidden cracks that are not noticeable during a quick inspection.
Another critical mistake is installing new shock absorbers without replacing boots and bump stops. Old rubber elements harden and crack over time, losing their ability to protect the rod from dirt. If you install a new shock absorber on an old boot, the rod will quickly be scratched, and the seal will begin to leak after just a couple of thousand kilometers. Replacing the boot and bump stop is mandatory every time you replace a shock absorber, even if the old ones look intact.
When purchasing spare parts, pay attention to the markings. On Nissan Almera Classic Rear shock absorbers may have different lengths or stiffness depending on the year of manufacture and equipment. Make sure that the analogue you choose has the same geometric parameters as the standard one. An incorrectly selected element can result in the suspension working on bump stops or, conversely, not having sufficient travel.
- π Always check the presence of oil on the old shock absorber before purchasing a new one
- π οΈ Use a torque wrench to accurately tighten threaded connections
- π« Do not use gas canister to heat bolts near the gas tank
- π Check the length of the new shock absorber before installation
Before purchasing new shock absorbers, measure the compressed and extended length of the old rod to ensure compatibility with the model you choose.
FAQ: Frequently asked questions from owners
How long does it take to replace rear shock absorbers on an Almera Classic?
For one experienced technician, replacing a pair of rear shock absorbers takes from 1 to 1.5 hours. If you are doing this for the first time and encounter stuck bolts, the process may take 2-3 hours. The presence of a pit or lift significantly speeds up the work.
Is it possible to change shock absorbers one at a time?
Technically this is possible, but it is highly not recommended. Shock absorbers wear out equally, and if one fails, the second will soon require replacement. Different suspension stiffnesses along the axles can lead to vehicle instability and accelerated tire wear.
Do I need to do a wheel alignment after replacement?
Ideally, yes. Although replacing shock absorbers does not directly change the wheel alignment, removing and installing the arms could throw off the settings. If you feel that the car is being pulled to the side or the steering wheel is crooked, be sure to visit a wheel alignment stand.
Which shock absorbers are better: gas or oil?
Oil or hydro-gas shock absorbers are better suited for city use and soft running. Gas engines provide a firmer, sportier ride, but can be uncomfortable on bad roads. For Nissan Almera Classic Hydrogas models are often chosen as a compromise option.