Ford Focus 2 engine 1.6 100 hp from the Duratec series (or according to another Zetec-SE specification) has a twin brother, but with a volume of 1.4 liters. Structurally, Duratec 1.6 and Duratec 1.4 are almost the same, so this article will be of interest to owners of a 1.4 liter engine. The only difference is the size and stroke of the piston, the other connecting rods and the crankshaft. And so these are gasoline atmospheric 16 valve engines with an aluminum cylinder block and a timing belt. Focuses made in Russia were equipped with a Duratec 16V Sigma (Zetec-S) 1.6 liter engine. 100 hp. The power unit turned out to be the most demanded on the Ford Focus 2.

Ford Focus 2 1.6 engine device

Focus 2 1.6 liter engine with 100 horsepower- gasoline, four-stroke, four-cylinder, in-line, sixteen-valve, with two camshafts. The location in the engine compartment is transverse. The order of operation of the cylinders: 1-3-4-2, counting - from the auxiliary drive pulley.

Supply system- phased distributed fuel injection (Euro-4 toxicity standards). An engine with a gearbox and a clutch form a power unit - a single unit, fixed in the engine compartment on three elastic rubber-metal supports. The right support is attached to the bracket located on the right wall of the cylinder block, and the left and rear - to the gearbox housings.

Cylinder block Ford Focus 2 Duratec 1.6 cast in aluminum alloy using the Open-Deck method with free-standing (at the top of the block) wet-type sleeves. In the lower part of the cylinder block there are crankshaft bearings - five beds of main shaft bearings with a plate (removable cover) common to all beds, which is attached to the block with ten bolts. The main bearings of the crankshaft are processed as an assembly with a plate.

Engine crankshaft- made of high-strength cast iron, with five main and four connecting rod journals. The shaft is equipped with eight counterweights, made on the continuation of its "cheeks". Counterweights are designed to balance the forces and moments of inertia arising from the movement of the crank mechanism during engine operation. Inserts of main and connecting rod bearings of the crankshaft are steel, thin-walled, with an anti-friction coating.

The main and connecting rod journals of the crankshaft connect channels drilled in the body of the shaft, which serve not only to supply engine oil from the main to the connecting rod bearings, but also to centrifugally clean the oil from solid particles and deposits during the rotation of the shaft. At the front end (toe) of the crankshaft are installed: a timing gear drive pulley (timing) and an auxiliary drive pulley.

Cylinder head for Ford Focus 2 1.6 engine

Cylinder head Focus 2 1.6 made of aluminum alloy. The valves in the cylinder head are arranged in two rows, in a V-shape, with two intake and two exhaust valves for each cylinder. Valves are steel, exhaust - with a plate made of heat-resistant steel and welded chamfer. The intake valve has a larger diameter than the exhaust valve. Seats and valve guides are pressed into the cylinder head. On top of the valve guide bushings, valve stem seals made of oil-resistant rubber are put on. The valve closes under the action of a spring. Its lower end rests on a washer, and its upper end rests on a plate held by two crackers. The crackers folded together have the shape of a truncated cone, and on their inner surface there are beads that enter the grooves on the valve stem.

Oil pump engine Ford Focus 2 1.6

Engine Lubrication Duratek 1.6 combined. Under pressure, oil is supplied to the main and connecting rod bearings of the crankshaft, pairs of "support - camshaft journal". The pressure in the system is created by an oil pump with internal gears and a pressure reducing valve. The oil pump is attached to the cylinder block on the right. The drive gear of the pump is mounted on the flats of the toe of the crankshaft. The pump takes oil from the oil pan through the oil receiver and delivers it through the oil filter to the main line of the cylinder block, from which oil channels depart to the crankshaft main bearings and oil supply channels to the camshaft bearings of the cylinder head.

Timing drive engine Ford Focus 2 1.6

The camshafts are driven by a toothed belt from the crankshaft pulley. The automatic tensioner ensures the required belt tension during operation. A feature of the timing mechanism drive is that the toothed pulleys of the crankshaft and camshafts are not fixed on the shafts with the help of keys or pins, but only due to the friction forces that occur on the end surfaces of the pulleys and shafts when the pulley mounting bolts are tightened. Timing drive scheme Ford Focus 2 1.6 pictured a little higher. On this engine when the timing belt breaks, the valve bends, so it is better not to delay the replacement. According to the regulations, the timing belt is replaced with Focus 2 1.6 16 valves every 100,000 kilometers.

Technical characteristics of the Ford Focus 2 1.6 100 hp engine.

• Working volume - 1595 cm3
• Number of cylinders - 4
• Number of valves - 16
• Cylinder diameter - 79.0 mm
• Stroke - 81.4 mm
• Timing drive - belt
• HP power (kW) - 100 (74) at 6000 rpm in min.
• Torque - 145 Nm at 4000 rpm. in min.
• Maximum speed - 180 km / h
• Acceleration to the first hundred - 11.9 seconds
• Fuel type - gasoline AI-95
• Compression ratio - 11
• Combined fuel consumption - 9.4 liters

When changing oil with a filter, 4.25 liters are needed.

Ford Focus-2 is a very popular car in Russia, it was produced from 2004 to 2011. Various types of power units were installed on the machines, different in cylinder volume, type and power.

Engines for Ford Focus-2 1.6, 1.8, 2.0 are highly reliable, but they have characteristic breakdowns. This article will discuss the strengths and weaknesses of Ford engines, design features, and also raise the question of how often maintenance should be carried out, which parts must be replaced during maintenance.

Reliability of Ford engines

Three types of engines are installed on 2nd generation Ford Focus cars:

• Duratec;
• Zetec;
• split port.

The difference between these types of motors is as follows:

• all Zetek engines are equipped with a timing belt drive;
• Duratek engines have a chain drive;
• Split Port power units are designed specifically for the American market.

Duratec motors are quite reliable, on average, the ICE run before overhaul is 350 thousand kilometers. Zetec engines have been produced since 1992, there is also a Zetec-SE series. Zetek engines are mostly trouble-free, on average their resource is 300-350 thousand km.

The most "capricious" are the Split Port motors, the most common disease of these units is the loss of the seat from under the valve in the block head. With such a defect, the seat crumbles with a valve and scatters over all cylinders, as a result, pistons and liners become unusable.

No matter how reliable the motor is, over time its parts wear out, and in some cases it is cheaper to install another motor than to repair it. It is expensive to buy a new ICE, so many Ford Focus-2 car owners put contract ICEs on their cars.

You can buy an engine for a Ford Focus-2 1.8 or 2.0 liter with relatively low mileage and a guarantee on average for 45-55 thousand rubles, contract engines are removed from cars that have not been used in Russia. Engines have low mileage, are tested, a package of documents is issued for any power unit. Split Port motors are somewhat more expensive, the average price of an internal combustion engine is 65-70 thousand rubles.

It is inexpensive to buy an engine for a Ford Focus 2 1.6 l Zetec - a contract engine will be delivered to order for 40-45 thousand rubles, in some companies power units are available. Replacing the engine is beneficial when a lot of money has to be spent on repairing the internal combustion engine, or the old cylinder block cannot be restored, and it has to be replaced.

Duratec engines

Duratec gasoline engines have been manufactured by Ford since 1993. Engines are four- and six-cylinder, ICE 1.4 / 1.6 / 1.8 / 2.0 / 2.5 liters are installed on the Ford Focus-2 car. The most common types of engines are from 1.6 to 2.0 liters, there are no hydraulic compensators on the internal combustion engine, the valves are regulated by selecting the thickness of the washers located in the pushers between the camshaft and the valve itself.

The 16-valve Duratec is a four-cylinder, in-line engine with a multiport fuel injection system, with a timing chain, a factory set resource of 250 thousand km, but in practice the engine runs longer. Also, Ford cars are equipped with this power unit:

• C-max;
• Puma;
• focus-1;
• Fiesta 4th and 5th generation;
• Fusion;

The engine is still installed on Mazda 2, Volvo C30 and S40. The biggest drawback of the Duratec 1.6 is its low power, which is especially noticeable when equipped with automatic transmission and air conditioning on.

Duratec HE 2.0 and 1.8 motors are very similar in design, they differ only in cylinder and piston diameters. A two-liter internal combustion engine is a more profitable option compared to a 1.8 - with almost the same fuel consumption, the “two-liter” is more powerful and quieter. The resource is declared by the manufacturer to be 300 thousand km, but in some cases the motors run up to half a million kilometers.

The valves on the internal combustion engine of the Duratek series are supposed to be adjusted after 150 tons. Km, the resource of the timing chain is over 200 tons. Km. Engine oil changes after 10-15 thousand, the air filter - after 15 tons of kilometers.

Zetek Ford Focus-2 engines

Zetec motors on a Ford Focus-2 car are equipped with a timing belt, in the line of power units there are engines of three sizes:

• 1598 cm³ (1.6);
• 1796 cm³ (1.8);
• 1989 cm³ (2.0).

All internal combustion engines are 16-valve, with two camshafts (upper location in the cylinder head). Zetec engines can have both hydraulic lifters and shims - hydraulic tappets have been on the Zetec-SE series since 2001, before that the need for valve adjustment was necessary.

Valve knock on Zetek engines can be heard infrequently, valve adjustment is required after 120-150 thousand mileage. The work itself is difficult, and without sufficient experience it is not recommended to adjust the valves on the Ford Focus-2.

The cylinder head and cylinder block of the Zetec-SE internal combustion engine are cast from aluminum alloy, all engines are four-cylinder, in-line, 4 valves are located in each combustion chamber. The timing belt drives not only the camshafts, but also the water pump, so when replacing parts of the gas distribution mechanism, it is recommended to change the pump as well. The 1.6 Zetec engine is characterized by relatively low fuel consumption; in mixed mode, fuel consumption is about 7-8 l / 100 km. The intake manifold of the engine is made of plastic, the oil pan is made of aluminum.

Many car owners recommend changing the timing belt at a mileage of 60 thousand km, although according to the factory regulations, replacement must be carried out after 150 thousand km. Here you can play it safe - if the strap breaks, the valve bends. The engine oil and air filter are replaced in the standard mode, the same as for Duratec engines. The 1.6 power unit is quite reliable, its only serious drawback is its insufficient power. Even the fuel consumption with the Zetek engine is not the smallest - in the city it can reach 10-11 liters per "hundred".

The Zetec 1.8 engine is not considered too reliable, however, all its problems are not so significant:

• failure of the thermostat;
• leakage of the front crankshaft oil seal;
• unstable idling.

But in general, the unit is not bad - it does not consume much oil, it is not so easy to “kill” the crankshaft.

Many Zetecs have one design feature - the crankshaft gear is not fixed with a key, it is “floating”. Therefore, when replacing the timing belt, special attention should be paid to this fact - if the pulley is loosely pulled to the / shaft, the marks on the shafts will go astray, the valve timing will change. As a result, the engine will stop working normally, and the valves may bend.

Engines Split Port

The 2.0-liter Split Port engine was originally installed on the Ford Escort, it appeared on this model in 1997. ICE Split Port - single-shaft, four-cylinder, 8-valve, equipped with a timing belt.

The real scourge of these power units is the weak fit of the valve seats in the cylinder head. The saddle flies out at the slightest overheating, as a rule, after what happened, it is required:

• replacement of the block head (at best, its expensive repair);
• piston replacement.

If the saddle strongly hits the cylinder, the sleeve is damaged, the connecting rod bends, then you can’t do without a major overhaul - you have to bore the block. Another problem with this breakdown is that spare parts are not cheap, sometimes it’s easier to buy a contract engine than to restore the power unit.

DIC has other "diseases", but not so serious:

Often, many car owners cannot determine what type of two-liter engine is installed on the car, and the ICE model does not fit into the data sheet. There are two ways to determine:

Duratorq TDCi

Diesel engines of the Duratorq family were first introduced in 2000, the first such power unit appeared on the Ford Mondeo. In Russia, Focus-2 with a diesel engine is rare, such a car is more popular in Europe.

Diesel engines are characterized by many positive qualities, they are:

• reliable;
• work steadily;
• have good traction;
• economical;
• they start well even in severe frosts.

But the diesel "Focus" has a significant drawback - it does not tolerate low-quality diesel fuel. If you fill a car with bad diesel fuel, the fuel injectors will quickly become clogged with rubbish, and the car will have to be evacuated to a car service.

Focus-2 is equipped with diesel engines in five versions, ICE volumes - 1.6 and 2.0 liters. The most popular diesel engine on the Focus is the 2.0 TDCi DW10C model, this power unit is equipped with a Common Rail fuel system and develops a maximum power of 163 hp. With. The engine complies with environmental standards Euro-5, is characterized by a fairly high efficiency. The fuel consumption of Ford Focus-2 cars with ICE 2.0 TDCi per hundred kilometers is:

• 2 l - on the highway outside the city;
• 5.0 l - in the combined cycle;
• 6.3 liters - on trips around the city.

There are three options for a 2-liter turbodiesel - with a capacity of 115, 140 and 163 hp. with., among themselves, the power units differ only in the firmware of the electronic control unit.

On a 2-liter Ford Focus-2 engine, the timing belt is very reliable; according to the factory settings, it is recommended to replace it after 140,000 kilometers. But the oil on the diesel "Focus" changes after 10 thousand, in difficult operating conditions - after 7-8 thousand km.

Ford Focus is a compact American manufacturer that is very popular in our market. The brand has become famous for its technology, which has proven itself from the best side. Ford Focus of the second generation was the most popular car in our region in 2003-2008. A distinctive feature was the low price, good driving characteristics and reliable power plants.

The engine for the Ford Focus 2 1.6 liter was produced in two versions, with a power of 100 and 115 hp. This is the same motor, only a 115 hp installation. has a Ti-VCT valve timing control system, due to which it has more power.

Power plant device

Technologically, the Ford Focus 2 engine is a naturally aspirated, gasoline, 4-stroke, 4-cylinder unit, in-line, 4 valves per cylinder and two camshafts (DOHC).

• The power plant power system is carried out due to the phased distributive fuel injection. The motor complies with Euro-4 environmental requirements. Engine, gearbox, clutch: structurally form a single unit, attached to the body on 3 supports.
• The Ford Focus 2 1.6 cylinder block is made of aluminum alloy using the open-deck method. Thanks to the method, wet-type cylinder liners sit at the top of the block. The cylinder head and engine pan are made from the same material. Beds of crankshaft main bearings in the amount of 5 pieces with a common removable cover and fastening in the form of bolts (10 pieces) are located in the lower part of the block. Machining of main bearings is assembled with a plate.
• Crankshaft. The part is made of durable cast iron, has main (5) and connecting rod (4) necks. Counterweights (8 pieces) are made on the continuation of the cheeks of the crankshaft. During the operation of the motor, due to the movement of the crank mechanism, forces and moments of inertia arise, the task of counterweights is to balance them.

Power plant cylinder head

The material from which the Ford Focus 2 cylinder head is made is aluminum alloy. The valves in the head are arranged in two rows, four valves per cylinder (2 intake and 2 exhaust). Valve material, steel. The exhaust valve disc is made of heat-resistant steel with welded chamfer for better transfer of high temperatures. The intake valve diameter is larger for more efficient filling of the combustion chamber.

Seats and valve guides are pressed into the cylinder head. Oil scraper caps made of oil-resistant rubber are put on top. The spring helps to close the valve, its lower end rests on the washer, the upper end on the plate. The plate is held by two cone-shaped croutons.

On the inner surfaces of the crackers there are shoulders that enter the valve stem and, due to this, hold it.

Power plant oil pump

The Ford Focus 2 motor has a combined lubrication system. Oil is supplied to the parts of the power plant under pressure, pumped by an oil pump. The design of the pump has internal gears and a pressure reducing valve. The pump is driven by a drive gear mounted on the toe of the crankshaft.

The oil is taken from the sump by the pump and, passing through the oil filter, enters the main line of the cylinder block. From there, it flows through oil channels to the crankshaft and camshaft bearings.

The drive of the gas distribution mechanism of the power plant

The Ford Focus 2 camshaft 1.6 engine is driven by toothed belts from the crankshaft pulley. A special device automatically tightens the belt to eliminate slippage.

A design feature of the drive is the fixation of the toothed pulleys. It occurs due to the friction forces that occur on the end surfaces of the pulleys and shafts, when tightening the pulley mounting bolts.

Technical characteristics of power plants

A more powerful motor has the same design as the Ford Focus 2 1.6 100 hp engine. s, a distinctive feature is the presence of a valve timing control system.

Power plant model	Ford Focus 2 1.6 (100hp)	Ford Focus 2 1.6 (115hp)
Engine capacity, cm 3	1595	1595
Number of cylinders/valves, pcs.	4/16	4/16
Cylinder, diameter, mm	79,0	79,0
Piston, stroke, mm	81,4	81,4
Power, horsepower	100	115
Torque, Nm	145	155
Compression	11	11
Timing gear drive	belt (DOHC)	belt (DOHC)
Fuel type	gasoline, AI-95	gasoline, AI-95
Consumption, liter / 100 km (city / highway / mixed)	8,7/5,5/6,7	8,7/5,1/6,4
Cylinder block, material	aluminum	aluminum
Environmental Compliance	Euro - 4	Euro - 4
Engine resource, km	250000	250000
Mass of the power plant, kg.	90	90

Valve timing system Ford Focus 2 1.6 (115hp)

The VCT (variable valve timing) system is designed to independently control the position of the intake and exhaust camshafts. It regulates the opening parameters of the valves in accordance with the load on the motor and the speed of rotation. Thus, the power of the power plant is used more efficiently, fuel consumption is reduced, dynamic performance is improved, and exhaust toxicity is reduced. The system is controlled by an electronic control unit.

In the valve timing control system, there are a large number of parts and mechanisms. The main ones are: solenoid valves, actuators and camshaft position sensors.

Between the upper front cover of the timing gear drive and the cylinder head cover, there are two solenoid valves of the system (one for each camshaft). The common front cover of the camshaft bearings and the seal holder is the system cover at the same time.

The actuators of the system are driven by the timing belt. The rotation of the camshafts is transmitted by hydromechanical coupling. The position of the shafts is monitored by sensor discs fixed at the ends. The sensors themselves are located in the cylinder head cover.

Oil is supplied to the solenoid valves of the valve timing system through channels in the CVT cover from the cylinder head line and then goes to the actuators.

The rotation of the camshaft to the required angle occurs due to the hydromechanical effect on the individual elements of the actuator. The actuator is actuated by oil pressure, which is controlled via the electronic control unit by the spool of each solenoid valve.

The operation of the mechanism as a whole is greatly influenced by the purity of the engine oil. The spool device is very demanding and sensitive. That is why a filter is built into the channel of the cylinder head through which the oil passes before reaching the valves. The filter is not replaceable, and when clogged, the lubricant continues to be supplied to the system through the bypass channel of the line.

Typical malfunctions of power plants

Like any engine, Ford Focus 2 has its advantages and disadvantages, the main disadvantages include:

• The timing belt drive, be sure to replace the belt and rollers every 160,000 km;
• If the motor heats up, or vice versa does not heat up, the thermostat should be replaced;
• Knock in the motor. There are no hydraulic valve compensators in the power plant, as a rule, this is the reason for knocking. Valve clearances need to be adjusted.
• Strong vibration from the motor to the body of the car. Weak link, right engine mount. Quite often it fails. Requires replacement.
• The engine runs unevenly, intermittently. There can be several reasons: candles, clogged throttle, high-voltage wires, ignition coil, fuel pump. To obtain detailed information, it is necessary to conduct a complete diagnosis.

The device of the Ford Focus 2 engine turned out to be very successful, the motor is reliable and not capricious. The engine resource, as indicated in the manufacturer's data, is 250,000 km, although, as practice shows, with good care, the power plants passed 300-350 thousand km without problems.

Ford Focus 2.0 engine installed on the Focus of all three generations. True, the design of these power units is different. Naturally, the device and characteristics of the Focus 2 liter engines are different. The first Focus had a Zetec-E 2.0 series engine under the hood, on the second and third generations of the car, a motor from the Duratec-HE 2.0 and Duratec-HE Ti-VCT series, respectively, was installed. Today we will talk about all the power units in more detail.

So, on the Focus of the first generation, they installed Zetec-E 2.0 with 16 valves. This is a typical DOHC with a timing belt. Cast iron cylinder block. There are no automatic hydraulic tappets or hydraulic compensators in the valve mechanism, so the valve clearance must be adjusted manually. Engine specifications below.

Ford Focus 1 Zetec-E 2.0 engine

• Working volume - 1989 cm3
• Cylinder diameter - 84.8 mm
• Piston stroke - 88 mm
• HP power – 130 at 5500 rpm
• Torque - 178 Nm at 4500 rpm
• Timing Drive - Belt (DOHC)
• Compression ratio - 10
• Fuel consumption in the city - 11.7 liters
• Combined fuel consumption - 8.7 liters
• Fuel consumption on the highway - 6.9 liters

On the second Ford Focus, the Duratec-HE 2.0 engine appeared. The cylinder block of the 2-liter engine is cast from an aluminum alloy, the cylinder head is also aluminum, like the pallet. The in-line four-stroke, 4-cylinder, 16-valve petrol unit has an electronic fuel injection control system. A feature of this motor is the presence of a chain in the timing drive.

There are no hydraulic compensators in the valve mechanism of the Focus 2 engine with a volume of 2.0 liters, so the thermal clearance must be adjusted manually. Between the camshaft cams and the valves are cylindrical pushers, the so-called “glasses” of the valves. It is the selection of pushers with different thicknesses of the bottom of the glass that the desired gap is selected. This is a rather time-consuming job, requiring the removal of camshafts. Motor specifications below.

Ford Focus 2 Duratek 2.0 engine

• Working volume - 1999 cm3
• Number of cylinders / valves - 4/16
• Cylinder diameter - 87.5 mm
• Stroke - 83.1 mm
• HP power - 145 (107 kW) at 6000 rpm
• Torque - 185 Nm at 4500 rpm
• Timing Drive - Chain (DOHC)
• Compression ratio - 10.8
• Fuel consumption in the city - 9.8 liters
• Combined fuel consumption - 7.1 liters
• Fuel consumption on the highway - 5.4 liters

The Ford Focus III received the same 2-liter Duratec, but the unit received a modern timing system, which added power and reduced fuel consumption. The chain in the timing drive remained. A photo of this power unit is below.

The characteristics of the 2-liter Focus engine of the 3rd generation are below.

Ford Focus 3 Duratek 2.0 engine

• Working volume - 1999 cm3
• Number of cylinders / valves - 4/16
• Cylinder diameter - 87.5 mm
• Stroke - 83.1 mm
• HP power – 150 (110 kW) at 6000 rpm
• Torque - 202 Nm at 4500 rpm
• Timing Drive - Chain (DOHC)
• Compression ratio - 11
• Fuel consumption in the city - 9.6 liters
• Combined fuel consumption - 6.7 liters
• Fuel consumption on the highway - 5 liters

The Duratec HE 2.0 of the second Focus differs from the third generation engine in the presence of a Ti-VCT system (variable valve timing system). In addition, there was a system of direct fuel injection GDI. All this made the motor very efficient and reliable.

Engine Ford Focus 2 1.6 liter has two modifications with a capacity of 100 hp. and 115 horses. Structurally, this is the same engine, just a more powerful Focus 2 engine has a Ti-VCT variable valve timing system. Today we will talk about the device and characteristics of both power units.

Let's start with the usual Duratec 1.6 with 100 hp This is an atmospheric gasoline, four-stroke, 4-cylinder, in-line, 16-valve, with two camshafts (DOHC). There is a belt in the timing drive. Power supply system - phased distributed fuel injection EURO-4 toxicity standard. The cylinder block is cast from an aluminum alloy with free-standing “wet” type liners (that is, the liners are freely washed by the coolant). The cylinder head is cast from aluminum alloy, the engine tray is also aluminum.

In this engine Focus 2 Duratec 1.6 there are no hydraulic lifters. Therefore, periodically it will be necessary to adjust the thermal clearance of the valves. Actually, after measuring the current gap, the camshafts are removed and the valve tappet glasses are changed, selecting the desired thickness, guided by a special marking. The bottom of the glasses acts as a gasket between the camshaft cam and the valve. This operation must be carried out every 100 thousand kilometers, or after the appearance of a characteristic valve knock.

Ford Focus 2 Duratek engine 1.6 100 hp

• Working volume - 1596 cm3
• Cylinder diameter - 79 mm
• Stroke - 81.4 mm
• HP power – 100 at 6000 rpm
• Torque - 145 Nm at 4000 rpm
• Timing Drive - Belt (DOHC)
• Compression ratio - 11
• Fuel consumption in the city - 9.4 liters
• Combined fuel consumption - 6.8 liters
• Fuel consumption on the highway - 5.4 liters

A more powerful version of the 1.6 Ti-VCT 115 hp engine. essentially has the same design, differing in the presence of a valve timing control system. We now describe in detail how this system works.

• 1 - actuator for adjusting the valve timing (under the timing cover)
• 2 - cover
• 3 - solenoid valve
• 4 - camshaft position sensor

The variable valve timing system of the Ford Focus II engine of the Duratek 1.6 liter engine provides independent control of the position of the intake and exhaust camshafts. That is, the VCT system allows you to set the optimal phases of the gas distribution mechanism for each moment of engine operation in order to increase its power and dynamic characteristics, as well as to reduce exhaust toxicity. The system is controlled by an electronic engine control unit (ECU or engine brains).

The main elements of the VCT system include control solenoid valves, actuators and camshaft position sensors. The two solenoid valves of the system (one for each camshaft) are installed in a special cover located between the upper front timing cover and the cylinder head cover. The cover of the VCT system is at the same time a common front cover for the bearings of both camshafts and a holder for the shaft seals.

The timing belt of the Focus 2 motor drives the actuators of the system, which, using hydromechanical coupling, transmit rotation to the camshafts. At the other ends of the camshafts are fixed sensor drive disks that monitor the position of the shafts. The camshaft position sensors themselves are fixed in the cylinder head cover.

From the oil line of the cylinder head, engine oil through the channels made in the VCT cover is supplied to the solenoid valves of the valve timing control system and then to the actuators of the system.
At the ECU commands, the spool device of each solenoid valve controls the supply of oil under pressure to the working cavity of the actuator or the draining of oil from it. As a result of hydromechanical action, the individual elements of the actuator are mutually moved and the camshaft rotates to the required angle, changing the valve timing.

It should be borne in mind that the spool arrangement of the solenoid valves of the system is very sensitive to contamination of engine oil. Therefore, in addition to the conventional oil filter, another filter is integrated in the channel of the cylinder head that supplies oil to the valves. This filter cannot be replaced, and if it becomes clogged, oil continues to be supplied uninterruptedly to the system elements through the bypass section of the line.

Ford Focus 2 Duratek engine 1.6 115 hp

• Working volume - 1596 cm3
• Number of cylinders / valves - 4/16
• Cylinder diameter - 79 mm
• Stroke - 81.4 mm
• HP power – 115 at 6000 rpm
• Torque - 155 Nm at 4150 rpm
• Timing Drive - Belt (DOHC)
• Compression ratio - 11
• Fuel consumption in the city - 8.7 liters
• Combined fuel consumption - 6.4 liters
• Fuel consumption on the highway - 5.1 liters

Increasing power and reducing fuel consumption is something that pleases any driver. However, the complexity of the engine design leads to an increase in the cost of operation and repair of such a power unit. This is worth considering when buying a used Focus with a Duratec 1.6 16V Ti-VCT engine.