Engines ZMZ-405: specifications, prices

The ZMZ-405 family of gasoline engines can be rightfully considered one of the pride of their manufacturer - Zavolzhsky Motor Plant OJSC. The high quality of these motors is confirmed by years of operation, and often in rather harsh conditions. 4-cylinder, in-line injection engines ZMZ-405 appeared on the market in 2000. The main consumer was OAO GAZ. These engines were equipped with GAZ-3111 cars. Subsequently, the power unit was repeatedly improved. So, after carrying out complex works on adaptation, which were started in 2009, one of the modifications of the 405 family - the engine ZMZ-40524.10 - began to complete the Fiat Ducato. In modern conditions, 405 series devices are equipped with both cars and minibuses and light trucks.

Design

The engine of the Zavolzhsky Plant is a four-cycle automobile power unit with in-line arrangement of cylinders and pistons. Fuel supply to the inlet channels of the cylinders and ignition is controlled by an electronic system. The engine is equipped with an external fuel-air mixture system. The reciprocating motion of the pistons is converted into rotary by means of one common for all pistons of the crankshaft. Two overhead camshafts. Cooling system of closed type, liquid with forced circulation of cooler. The lubrication system of the 405 engine is combined. Lubricants are supplied to the moving parts under pressure by spraying.

The block of cylinders and a cranked shaft

The upgraded block of the 405th engine is made of high-strength cast iron, which, combined with the use of high-precision metal processing methods, made it possible to significantly reduce the deformation of the cylinders during operation. In the block of the old sample, slots of 2 mm between the cylinders for the cooling system were provided. For the engine block ZMZ-405, such slots are not provided. In addition, the threaded manholes for bolts for securing the cylinder head were enlarged.

The crankshaft is structurally identical to the engine ZMZ-406, but is cast from high-quality and more durable cast iron. The design is full-bearing with two counterweights for each crank. Improvements have made it possible to improve resistance to centrifugal forces and bending moments.

Engine Features

As the basis for the engine was used carburetor ZMZ-406. The 405th became a modified injector derivative. Modern advanced engines ZMZ-405 fully comply with the established standards of "Euro-3". They are installed on cars brands "GAZelle", "UAZ" and "Fiat". The manufacturer has developed and implemented several innovative design solutions.

So, the ZMZ-405 unit was lightened by 1.3 kilograms due to the complete dismantling of the idling system from the head of the block. The engine is controlled by an electronic throttle. This is what allowed to abandon some of the components: throttle body, idling regulator, air pipes of idling, position sensor flaps.

The cylinder block itself retained its original properties after a reduction in weight. Moreover, the rigidity of the block was increased. Castings between the cylinders were eliminated by innovative transverse slots provided in the cooling system.

Improvement of cylinder head

The engineers of the production plant improved the thermal insulation of ZMZ-405. For a more reliable tightness of the cylinder block, instead of a reinforced cylinder head gasket from a single-layer, asbestos-free material, a two-layer metal was used. The renewal of the material and the use of new structural elements, in particular zigzag springs, ensured better sealing of the gas joint and channels of the lubrication system, and also improved the cooling process. The thickness of the new design is reduced by a factor of three with respect to the original soft padding with a metal edging and is only 0.5 millimeters. This made it possible to minimize the need to tighten the bolts in comparison with the previous parts, which in turn makes it possible to reduce the deformation of the cylinders during operation.

In the engines of the 405 series "Euro-3" for auxiliary units, an extended drive belt and a self-retracting roller are used. The estimated lifetime of the roller is 150 thousand kilometers. In the engines of the 405 series, the consumption of oil and fuel is significantly reduced. These engines meet world standards and allowable toxicity standards, and are also characterized by increased reliability.

ZMZ-405: technical specifications

The engine ZMZ-405 "Euro-3" developed on the basis of ZMZ-406.10 has such characteristics:

• The power unit is designed for installation on minibuses and small trucks.
• Type of engine - internal combustion, gasoline, in-line with fuel injection.
• The number of cylinders is 4, with 16 valves.
• The volume is 2.46 liters.
• The compression ratio is 9.3.
• The diameter of the cylinders is 95.5 mm.
• The stroke of the piston is 86 mm.
• The declared capacity is 152 liters. from. (111.8 kW) at 5200 rpm.
• Specific fuel consumption is 198 g / l. from. Per hour, the recommended fuel octane rating is 92.
• Cooling of the motor is liquid.
• The completed weight is 192.2 kg.
• Compliance with the ecological standards of "Euro-3" with the installed three-component neutralizer.

What is the key difference between the base engine and ZMZ-405? The technical characteristics of the capacity were increased by 4.8% with an increase in the working volume by 7.9%.

Modern engine ZMZ-405: price

Petrol engines ZMZ-405 series of modern modifications (40524.1000400-100, 101) in the factory production of OAO ZMZ are in 2013. Of the latest improvements, one can note the optimized valve cover, the timing chain gears and the improved ventilation system with the removal of crankcase gases into the receiver. New constructive changes made it possible to create an engine corresponding not only to Euro-3, but also to Euro-4 environmental standards.

The new engine ZMZ-405, whose price in dealer networks ranges from 124 to 152 thousand rubles, with a guarantee from the manufacturer's factory is intended for the conversion of cars of the GAZel Business line.

The possibility of tuning ZMZ-405

Tuning of any engine provides, above all, an increase in power. In ZMZ-405, this can be achieved in three main ways: forcing, turbocharging, or installing a compressor.

The first variant of tuning, which has become traditional, provides for a rather large range of works: the installation of active air intake, the finalization of the combustion chambers, the increase in the volume of the receiver, the replacement of standard valves, springs, shafts and components of the piston group with more advanced, modernization of the exhaust system. As a result, the engine's performance acquires a sporting tint, and the power increases to 200 liters. from.