For a long time, the Swedish company Volvo relied on gasoline engines with five cylinders, which remained the main power units of the brand for two decades. In previous reviews, you could take a closer look at the Volvo 1.8 16v (B4184S2), 2.0 T B5204T5 and Volvo 2.5 (B5252S) engines. Their design was characterized by the use of an aluminum block with cast iron liners and an aluminum camshaft bed cover, replacing the traditional valve cover.
In total, the design provides a pair of camshafts with 16 valves, toothed belt, intake with a clutch, hydrocompensators in the operation of the valves are not provided.
Technical characteristics of the engine Volvo B5244S2 2.4
The Volvo B5244S2 engine is an atmospheric gasoline engine, installed on Volvo cars from the late 1990s to the mid-2000s. This power unit is characterized by reliability and high resource, which makes it popular among owners of Volvo cars.
Main engine characteristics
| Characteristics | Value |
|---|---|
| Exact volume | 2435 cm³ |
| Power system | injector |
| Power | 140 hp |
| Torque | 220 Nm |
| Cylinder block | aluminum, in-line 5-cylinder |
| Block head | aluminum, 20 valves |
| Cylinder diameter | 83 mm |
| Piston stroke | 90 mm |
| Compression ratio | 10.3 |
| Features | DOHC |
| Hydrocompensators | no |
| Transmission timing | belt |
| Fasoregulator | in intake |
| Turbocharger | no |
| Environmental class | Euro 3/4 |
| Recommended oil | 5W-30 |
| Oil volume | 5.8 liters |
| Example service life | 380,000 km |
| Engine weight | 170 kg |
Cars with Volvo B5244S2 engine
The B5244S2 engine was installed in the following Volvo models:
- Volvo S60 I (384): 2000 – 2009.
- Volvo S70 I (874): 1999 – 2000.
- Volvo S80 I (184): 1998 – 2006.
- Volvo V70 I (875): 1999 – 2000.
- Volvo V70 II (875): 2000 – 2007.
Operation and maintenance features
The Volvo B5244S2 engine is durable and reliable with timely maintenance. Regular oil changes every 10,000 – 15,000 km using 5W-30 oil helps keep it in good condition. It is important to keep an eye on the condition of the timing belt and the phase adjuster, as their wear can lead to serious engine problems. Timely maintenance and compliance with the regulations will help to extend the engine life up to 380,000 km and more.
Reliability Indicators
In general, Volvo motorists have always done their work qualitatively, so the engines of the Swedish brand are able to work for 500 thousand kilometers and even more, the main thing is quality service. Below it is worth going over the individual moments in the operation of the power unit, which will extend its service life and avoid problems.
Engine supports
The engine is characterized by a non-standard arrangement of supports. There is no traditional bracket on the front side, but on the rear left side (closer to the driver) there is an additional suspension support. Its service life is about 200 thousand kilometers, and with a high level of wear of the gasket, significant shocks and vibrations are felt on the body.
In cases when the lower supports are worn out, the engine actually touches the body, transmitting all vibrations to it, especially during acceleration. You can feel them by the characteristic rumble and rattling of the car.
Non-standard support “reaction rod” is used for installation of automatic transmission. The signal for its change is the appearance of knocks when switching to Drive and Reverse modes.
Flow meter
There are no problems with this element, but violations in the operation of the flow meter can lead to an increase in fuel consumption and violations of the optimal composition of the fuel-air mixture. The integrity of the device is determined by measuring the value of the signal voltage.
Throttle valve
In the period of 1999-2002, the Italian company Magnetti Marelli throttle valves were installed on the engines, which are remembered for their minimal service life. Their main problem is the position sensor location: just a few years is enough for the surface graphite table to completely erase, rendering the sensor inoperable. The symptomatology of the problem is expressed in a spike in revolutions, a drop in engine thrust, the occurrence of a throttle error and the transfer of the power unit into emergency mode, limiting revolutions to 2000 rpm.
When idling, it is possible that the fuel supply may spontaneously increase, as well as stop. It is also possible that the throttle pedal may not respond. The service life of the throttle after the first malfunction can vary from a few weeks to several years.
Installation of flaps from other manufacturers is not provided by design, so owners of cars with engine 2.4 B5244S2 will have to put up with the problem during the entire operation of the car.
Replacing Italian flaps with used ones is not a solution to the problem, as the short service life of the product will lead to the need for a new replacement in the near future. In addition, a second-hand throttle will also require customization of its operation for a particular car.
In some cases, the sensor can be repaired by changing the position of the track, and putting under the runner its more whole fragment.
Problems with starting the engine
The reasons for a problem starting the engine can be different. The crankshaft position sensor on the Swedish engine is characterized by reliable operation, but it is not superfluous to check it in case of problems with starting the power unit, fully serviceable ignition and fuel pump.
Problems can also lie in the pump. Engine operation is oriented on gasoline supply at a pressure of 3.6 bar, and it should be maintained even after the engine stops. In this case, the pressure regulator is not installed on the ramp, but instead a bypass valve is used, located directly on the submersible pump.
Wiring to the injectors
The wiring to the coils is located under the cylinder-head cover, which has primarily decorative functions. Due to the constant heating of the dense bundle of wires, the insulation quickly becomes unusable and crumbles. As a result, there is a possibility of contact between the metal wires, but the probability of a short circuit is minimal. The problem affects the power of the motor, almost completely disappearing. Therefore, it is necessary to monitor the condition of the wiring with all care.
In the event that oil got into the channel for wiring, but problems with gas pressure in the crankcase, squeezing the liquid out through the filler neck, are excluded. Banal carelessness in the process of changing or adding lubricating fluids is not excluded.
Ignition coils
Coils are highly reliable, but it is worth monitoring the condition of spark plugs. It is recommended to use only original spark plugs, which provide improved performance.
Failure of coils is mainly due to natural wear and tear and leads to the appearance of longitudinal cracks, through which begins to break through to the cylinder-head. Carrying out repairs on their own does not give any positive effect, so the coil will have to be completely replaced. At the same time, even analog models have a fairly high price tag.
The injectors
The reliability of the work of injectors is excellent, and in most cases they are enough for the entire life of the car, but periodically they need cleaning, after which the car becomes much “livelier”. The cost of a new set varies within 250-300 dollars, but after changing the injectors, the difference in dynamics is really felt. With the engine capacity of 140 forces the car easily accelerates and keeps speed without the need to squeeze the gas pedal to the stop.
Over time, the sealing rubbers, which lose elasticity and start sucking air, will have to be replaced. Positive fuel correction is the evidence of air getting into the system. It is easy to buy sealing rings, and their replacement is carried out without appropriate efforts due to the simplicity of disconnecting the nozzle ramp.
Oil separator
One of the problems of gasoline engines from Volvo is a tendency to increased pressure of crankcase gases, respectively, there is a squeezing of the oil seals with the appearance of increased oil consumption or even its leakage outside the circuit. In this case, the leakage will occur through the oil dipstick, where the tightness of its fit is low.
The cause of the problem is the tubes of small cross-section, quickly clogged when using low-quality oils and short trips.
In the absence of diagnostics of VKG in the process of car operation, its check can be performed independently. To do this, a rubber glove is put on instead of the oil filler cap. Then the engine is started.
In case the glove starts to swell, even in minimal dimensions, you can safely talk about a broken pressure in the VKG system. For greater accuracy of the experiment, you can additionally give gas, and after that no changes in the position of the glove should not occur. In a normal state of internal pressure, the glove will not only remain stationary, but even suck inward slightly.
If there are pressure problems, the oil separator and tubing will need to be replaced as there is no provision for cleaning them.
Gas timing clutch
The phase shifter is mounted on the intake camshaft. On average, there are no claims to the quality of manufacture of the clutch, and it is able to serve up to 200 thousand kilometers. Further begins a significant wear, expressed in the appearance of extraneous sounds and leaks of oil, which gets, among other things, on the timing belt. In addition, there is a backlash in the radial plane, threatening to slip the belt during engine operation. In this case, the powertrain will receive significant damage, requiring expensive repairs.
Repair of the clutch is practically not provided, it is recommended to replace it with a new one, with the cost of the part about 300 dollars.
In most cases for Volvo cars of the early 2000s, the system does not record an error about the presence of problems with the phases of gas distribution. The problem becomes visible when requesting the relative position of the camshaft and crankshaft. If there is a difference of 1-2%, we can talk about a high degree of wear of the clutch or solenoid valve. Valve replacement is carried out very quickly, so that the true cause of the malfunction can be quickly determined.
There are no extraneous noises in this operation, but the engine thrust drops, it can spontaneously stall at idle, consumes significantly more gasoline. Most often the problem lies in the operation of the control valve.
The timing belt
Normative change of the belt comes after 120 thousand kilometers, but in fact it is changed somewhat more often. Together with the belt it is reasonable to change the pump, and non-original models of pumps are not always of proper quality. Under load, they begin to skew, which leads to contact between the impeller and the body and the formation of metal chips. In turn, the outer roller bends, creating risks for slipping the belt with subsequent damage to the valves by piston impacts.
Headershell
On the engines of the Swedish company, produced in the XXI century, abandoned the use of hydrocompensators. As a result, it is necessary to carry out adjustment of the thermal clearances of the valves. This is especially important in cases when the engine is transferred to gas fuel.
The adjustment process is extremely labor-intensive, requiring not only to work with tappets-cups, but also to keep them in a permanently pressed position after opening the cover, which is very inconvenient. Measurements can also be made through the “valve cover” plugs, after removing them. For intake and exhaust, the clearances should be 0.2 mm and 0.4 mm respectively.