In detail: nissan example p12 club do-it-yourself repair gur from a real master for the site my.housecope.com.
The steering rack of the Nissan Primera P12 is a detail that directly affects the car's handling and maneuverability. Consider the design, symptoms and causes of the malfunction, as well as how diagnostics and repair of the Nissan Primera steering rack are done.
There are three types of rails: mechanical, hydraulic, electrical. The second type is most often used. The assembly design includes such elements as bearings, gears, toothed bar, oil seals, anthers, bushings. They are all interconnected.
The mechanical rack works due to the gear ratio of the main gear and the bar, which mesh with each other. The principle of operation of the hydraulic mechanism is based on the pressure of the hydraulic oil supplied from the power steering. Electric implies the use of electric power steering.
Any rail can cause problems during operation, especially if it has been used in a car for a long time. Symptoms of a malfunction of this unit are the following unpleasant manifestations:
oil leakage in the area of the steering rack;
increased steering play;
tight steering wheel;
hum in the power steering wheel;
slight jamming when turning the steering wheel;
knock.
Reiki problems can arise for the following reasons:
careless driving style, especially on uneven roads, frequent trips to curbs, which leads to damage to parts of the unit;
lack of sufficient warming up of the machine before driving, as a result of which the hydraulic fluid does not reach the required viscosity level necessary for optimal functioning;
untimely replacement of the fluid, leading to its contamination and subsequent loss of properties;
mixing different types of oil, due to which the liquid foams or curls up, which also has a negative effect on lubricating properties;
rupture of the anthers of the steering rods, which leads to the ingress of dirt and moisture inside the mechanism.
Video (click to play).
Diagnostics is carried out in several stages, during which it is determined exactly where the malfunction is located. If you hear a knock or there is a backlash, then it is necessary to investigate all the interconnected parts: steering rods, steering tips, ball joints, steering shaft, crosspiece, silent blocks. Sometimes the knock and backlash is caused not by the steering rack at all, but by one of the listed components.
If the problem is still related to the rail, then you need to go to the next step. First, it is determined if the pull-out bar is making a knock. You need to grab it with your hand, and then pull it up and down. If there is a knock, then in such a situation it speaks of worn out sliding bushings. If the bar does not knock, then the steering rack shaft is checked. It must be turned to the left and right in order to understand whether there is a malfunction in this place. If there are no problems here, then most likely the trouble lies in the increased clearance between the gear and the toothed bar.
The steering rack should also be checked for oil leaks. Leakage usually occurs due to torn anthers, and the ingress of dirt makes the oil seals and O-rings unusable. As a result of the violation of the tightness, the liquid flows.
If the steering wheel is tight, check for a leak, and if not, measure the hydraulic oil level in the reservoir located under the hood. The same manipulations are carried out if a hum or extraneous noise is heard. Sometimes the problem lies in the power steering pump and is accompanied by a nasty buzzing sound.
In some cases, there are no serious malfunctions of the steering rack, but there is still a knock or play.Then it is necessary to make an adjustment, which is carried out exclusively by auto mechanics with experience in such work. For this, special keys are used to tighten the adjusting nut-screw located in the steering shaft housing.
In a situation where repairs are required, the rail is removed from the car and fixed in a special device. The specialist disassembles the unit, inspecting and washing all removable parts. If necessary, measurements are taken to determine the wear of the part. Instead of worn-out parts - oil seals, anthers, bushings, spools, bearings - new ones are installed. After that, the assembly is carried out in the reverse order of parsing. The assembled rail is checked and adjusted at the stand.
Obviously, if the Nissan Example P12 steering rack is less worn out, the price of adjustment or repair will be lower than in advanced situations requiring significant repair or replacement of the rack.
In order for the steering rack to remain in good condition as long as possible, the following important rules must be observed:
monitor the cleanliness of the hydraulic fluid and its level;
change the oil on time;
exclude mixing of different types of liquid;
it is enough to warm up the car before driving;
diagnose the suspension in a car service about once every six months;
monitor the condition of the anthers, which often break;
monitor the condition of rods, tips, ball joints, silent blocks;
inspect the place where the car is standing in order to notice the leakage of liquid in time;
monitor the normal tension of the drive belts;
in winter, do not leave the car with the wheels turned to the right or left;
drive carefully on uneven roads.
Compliance with all of the above recommendations significantly reduces the likelihood of malfunctions of the steering rack.
If you have any problems with the steering rack, in our car service experienced craftsmen are always ready to help diagnose and repair the steering rack Nissan Primera.
The left anther is slightly wet, and not all but along to the middle, but the liquid does not go away. Side oil seal?
I steamed up with my power steering, the rail ran from all holes, side seals, upper oil seal, plus the power steering hose. The last days I have been pouring oil, about 1L per week.
As a result, I drove to the service, the rail was restored without question, the hose was re-squeezed, the pump was sentenced, tk. there was a little bit of metal powder inside the slats. Everything was assembled, a contract pump was installed, and the steering wheel does not turn on XX. More precisely, it turns, but there is clearly no hydraulics.
They put their own pump, the result is the same - they sin on and on him. Now I think that the pump used to work, albeit weakly, but better than now. Are the two pumps dead? If you raise the revs above 2000, the steering wheel becomes soft. What else can carry such a problem? The belt, by the way, was changed to a new one. There are no bubbles in the tank, no noise either.
So after all, there are no contract pumps in the city, maybe who knows, from what else the pump can come to us?
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General questions about Nissan Primera, not covered by other sections. Discussion of technical and other features, with the exception of maintenance and repair issues.
15.0 Power steering pump components. Cars with gasoline engine GA16DE
11 - sealing ring
17 - sealing gasket
20 - the bolt to the adjusting plate
1 Remove the ribbed belt by loosening the bolt on the adjusting plate (see illustrations 15.1, 15.1a and 15.1b).
15.1 Power steering pump for cars with QG18DE petrol engine
1 - bolt of fastening of the power steering pump to the adjusting plate
3 - fluid pressure sensor.The signal from the sensor goes to the engine control unit, which increases the idle speed through the speed regulator
5 - a hollow bolt for fastening the pressure pipeline to the pump
15.1а Power steering pump for cars with petrol engine SR20DE
1 - bolt of fastening of the power steering pump to the adjusting plate
3 - a hollow bolt of fastening the pressure pipeline to the pump
6 - bolts of fastening the pump to the support bracket
15.1b Power steering pump for a car with a diesel engine CD20T
1 - bolt of fastening of the power steering pump to the adjusting plate
3 - the bolt of fastening the pump to the support bracket
4 - a hollow bolt for fastening the pressure pipeline to the pump
When installing the return hose, the marks on the nipple and the hose must be aligned.
The head of the clamping screw must be facing back.
2 Place a container under the pump to collect the oil, unscrew the hollow bolt that connects the pressure hose to the pump and drain the hydraulic fluid.
3 Disconnect the return hose from the pump by loosening the clamp.
4 Unscrew the bolts securing the pump to the support bracket and remove it.
The pump is installed in the reverse order of its removal.
5 Connect the pressure and return hoses, place the ribbed belt and tension it by moving the pump on the adjusting bar, see the relevant chapter.
Attention! The power steering pump can be overhauled, but we do not recommend overhauling yourself. Repair of the removed power steering pump should be entrusted to a workshop.
- The primary timing chain. Removal 1. Remove the engine and transmission assembly, see the section "Engine assembly". 2. Remove the transmission from the engine. Install ... - Adjusting the drive belts Belt Adjustment method Steering pump and water pump Using the adjusting bolt on the alternator's steering pump (models without ... - Removing and installing the chain ... Removal 1. Remove the engine and transmission assembly. 2. Separate the engine from the transmission. 3. Install the motor assembly ... - Removal, check, installation ... CAUTION: • When removing the water pump, do not spill coolant on the drive belts. • The pump cannot be disassembled and ... - Fuel level sensor, fuel Attention: Make sure there is a fire extinguisher near the work site. Avoid open flames near the work area. Work well ...
How to replace steering rack - technology for removing and installing the steering rack
Hello dear motorists! In what cases is replacement necessary steering reiki?
Some inexperienced drivers in automotive science may have a question: why is it necessary to replace the steering rack, how difficult is this operation and is it possible to perform it in an amateur environment? Let's try to deal with these issues.
The steering mechanism is one of the most important components of a car device, responsible not only for performing the function of changing the direction of movement of the car, but also for the safety, and sometimes the life of the driver himself, passengers traveling with him and other people involved in road traffic.
This is explained by the fact that the correct maneuvering of the car makes it possible to avoid collisions with obstacles that suddenly appear on the roadway, to provide unconditional and complete control over the direction of the car's turn.
Thus, there is no need to prove that the technical condition of the parts that make up the steering must always be in perfect condition.
If, when performing the next technical inspection, the master says that there is a steering play in the steering that goes beyond the tolerance, then it is necessary to find out the source of its occurrence and urgently eliminate it.
Most likely, such a backlash appears in the rods and tips. If this is not the case, then most likely it is necessary to replace the steering rack with a new one, preferably a branded one.
Naturally, the driver has a problem, but how to remove the steering rack on a particular car?
It is recommended to start the procedure for removing this part on a specific car with familiarization with the service documentation (manual), which usually describes this operation and how it must be performed.
