Many owners often ignore the first signs of wear on rubber-metal elements, considering slight vibration to be the norm for a diesel engine, but this misconception can lead to expensive repairs. Hydraulic supports and ordinary rubber cushions in such conditions fail faster than on similar gasoline models. If you notice characteristic knocking noises when starting off or resonance of the steering wheel, you must immediately diagnose the engine mount.
Design features of the diesel unit suspension
Nissan Bluebird latest generations are equipped with diesel engines of the YD or QD series, which are characterized by increased weight and a specific moment of inertia. To compensate for these loads, engineers used complex mounting schemes that included both static rubber elements and active hydraulic dampers. Hydraulic support filled with a special liquid that flows between the chambers when the load changes, dampening resonant vibrations.A feature of diesel versions is that the front and rear supports experience uneven loads. The front support often takes the brunt of the impact during acceleration, while the rear and side airbags work to twist. Rubber-metal hinge in such a design it must have increased elasticity, but at the same time maintain rigidity under high loads. Incorrect selection of analogues can lead to rapid destruction of the fastening.
Key symptoms of malfunction and diagnostic methods
The first signal of problems with the supports is the appearance of vibration, which is transmitted to the body and steering wheel at idle speed. If, when you engage the gear, the vibration intensifies, and when you press the gas, it disappears or changes in character - this is a sure sign that engine mount lost its damping properties. In some cases, a characteristic metallic knock is heard during a sharp start or engine braking.
A visual inspection can reveal cracks in the rubber part of the cushion or a complete rupture of the damper. Hydraulic mounts often leak fluid, making them completely useless for vibration damping. Engine mount may be displaced relative to the seat, which indicates destruction of the bolted connection or the support body itself.
- 🔊 The appearance of a knocking sound in the engine area when driving over uneven surfaces
- 📉 Increased vibration of the steering wheel and pedals at idle speed
- 🚗 Car jerks when changing gears
- 🔩 Visual displacement of the power unit in the engine compartment
Range of spare parts and choice of manufacturer
When choosing spare parts for Nissan Bluebird Diesel It is important to consider that original parts are often marked Nissan Genuine Parts and are characterized by a high resource. However, the cost of the original can be quite high, which forces owners to look for alternatives. The market offers many analogues from manufacturers like Febest, 555 or Corteco, which sometimes exceed the original in rigidity, but are inferior in comfort.
Hydraulic mounts, as a rule, cannot be repaired and require complete replacement at the slightest sign of malfunction. Saving on damper quality is inappropriate here, since the consequences may include the destruction of body brackets. Engine mount must exactly match the engine specifications, since diesel and gasoline versions often have different mounting points and spring stiffnesses.
⚠️ Attention: Using cheap analogues without a hydraulic damper on a diesel Bluebird can lead to destruction of the body bracket due to the resonant frequencies of the diesel engine.
- 🏷️ Original parts provide maximum comfort and resource
- 🛠️ High-quality analogues (Febest, 555) are suitable for replacement in the budget segment
- ⚠️ Cheap rubber cushions quickly become tanned and lose elasticity
- Original Nissan
- Febest
- 555
- Corteco
Technical data and spare parts numbers
To accurately select spare parts, you must check the vehicle’s VIN code, since the suspension configuration may differ depending on the year of manufacture and the market. Below is a table with approximate part numbers for the most common diesel engines in the U13 and P10 bodies. This information will help you navigate when ordering parts.
| Support type | Motor | Original article | Analogue (example) |
|---|---|---|---|
| Left support | TD27 / YD22 | 11210-2S000 | Febest 11210-2S000 |
| Right support | TD27 / YD22 | 11220-2S000 | 555 11220-2S000 |
| Rear support | TD27 / YD22 | 11230-2S000 | Corteco 11230-2S000 |
| Transmission support | TD27 / YD22 | 11240-2S000 | Febest 11240-2S000 |
⚠️ Attention: Items may vary slightly depending on the type of gearbox (manual or automatic) and the year of manufacture of the car.
Engine Mount Replacement Procedure
Replacing supports with Nissan Bluebird - This is a labor-intensive procedure that requires removing the power unit or significantly lifting it. First you need to jack up the engine using a stand to remove the load from the mounts. Bolted connections often stick, so they must be pre-treated with a penetrating lubricant and left for 10-15 minutes.
It is important to follow the sequence of unscrewing the bolts so that the engine does not become warped. First, the fastenings are loosened, but not completely unscrewed, then the old support is dismantled. After installing the new part, the bolts are tightened to a certain torque, which is indicated in the service manual. Tightening torque critical for proper damper operation.
☑️ Preparation for replacing supports
- 🔧 Use a torque wrench for precise tightening
- 🛑 Do not lower the engine onto the old mounts when installing new ones
- 👀 Check the condition of the brackets for cracks
⚠️ Attention: Insufficient tightening of the bolts can lead to the support coming off while driving, which will create an emergency situation.
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 (blow torch) and penetrating lubricant. As a last resort, you can drill out the bolt, but this will require cutting new threads or installing a threaded insert.
Before starting work, be sure to mark the position of the engine relative to the body with a marker to simplify alignment when installing new supports.
Typical repair mistakes
One of the most common mistakes is replacing only one support when the others are clearly worn out. The engine mounting system works as a single mechanism, and uneven stiffness will cause new parts to wear out faster. Complex replacement of all supports - this is the only correct solution to ensure the durability of the repair.
Another mistake is to ignore the condition of the brackets to which the supports are attached. If the bracket is cracked or deformed, the new support will not be able to perform its functions and will quickly fail. Mounting bracket must be carefully inspected and, if necessary, replaced or repaired by welding.
Impact of wear on transmission and body
Ignoring problems with engine mounts can lead to destruction of transmission elements, in particular, failure pomegranate and cardan shaft. Constant vibrations and jerks during diesel operation are transmitted to the drives, causing their premature wear. In addition, resonant vibrations can damage body elements where the supports are attached.
Long-term consequences may include cracks in the side members or deformation of attachment points. Body deformation - This is a serious problem, the elimination of which requires expensive body repairs. Therefore, timely diagnosis and replacement of supports is an investment in maintaining the integrity of the entire vehicle.
Timely replacement of all engine mounts prevents destruction of body brackets and extends the life of transmission drive shafts.
FAQ: Frequently asked questions
Is it possible to drive with one broken engine mount?
Technically possible, but highly not recommended. This will cause accelerated wear on other supports, destruction of the brackets and possible damage to the drives. Driving such a car causes severe discomfort and vibration.
How often should I check the condition of the mounts on a diesel Bluebird?
It is recommended to carry out a visual inspection at each maintenance (every 10-15 thousand km). A full diagnostic with checking the play and condition of the tires should be done every 60-80 thousand km.
What is better: original supports or analogues?
For diesel engines, it is strongly recommended to use original mounts or proven high-class analogues (Febest, 555). Cheap analogues often cannot withstand the loads of a diesel engine and quickly fail.
Do I need to replace the supports as a set?
Yes, it is advisable to change all the supports at once, since they wear out approximately equally. Replacing one support against the background of worn-out others will create an uneven load, and the new support will quickly break.
How long does it take to replace engine mounts?
If you have experience and special equipment (motor stand), the replacement takes about 2-3 hours. Without experience and tools, the job can take half a day or more.