Motoblock engine MB 1 replacement with an imported one. Advantages of the Robin Subaru engine

Motoblocks of old brands, developed and produced in the 80s, which include Luch MB-1, are distinguished by the simplicity of their design and the elementary nature of all engineering solutions. This, of course, very far from ideal, light agricultural machinery was still made of very strong and high-quality steel. And it is characterized by amazing reliability and durability (which cannot be said about most modern walk-behind tractors). “Luch MB-1” is a device on which you can cultivate your garden almost all your life. With proper care, the number of breakdowns and repairs is reduced to a minimum.

The Luch MB-1 walk-behind tractor is in the same line with several other modifications of such equipment, which differ only in names, but are very similar both in appearance and in the design of all parts and assemblies. And the factory index for all is the same - “MB-1” (there is also an absolutely identical option, differing only in the shape of the fuel tank - “MB-5040”).

The names for their products were chosen by manufacturing enterprises, many of which belonged to the military-industrial complex and the aviation industry. The manufacturer of the Luch MB-1 walk-behind tractor was the Perm Production Association Motorostroitel named after Sverdlov (now JSC UEC Perm Motors), a manufacturer of aircraft engines.

The eighties and nineties of the twentieth century became for this plant the time when its products “came down from heaven to earth.” The line of manufactured equipment has been replenished with new models of gas turbine equipment intended for operation as part of gas pumping units of compressor stations of main gas pipelines and gas turbine power plants.

And also, in the light of the general “fashion for conversion” - consumer goods, among which, since 1985, was the Luch MB-1. In previous years, there was no point in producing walk-behind tractors in the Soviet Union: there was no market demand for them. Personal gardens were plowed and cultivated with collective farm tractors, either free of charge or for a reasonable fee. There was always a lot of gasoline and diesel fuel in farms, and they cost mere pennies. Years of destruction of the previous system agriculture nationwide - the second half of the 80s and all of the 90s - became a time of expansion of the production and use of domestic walk-behind tractors.

The main products of the Perm Motors plant.

Currently (more precisely, since the beginning of the 2000s), Luch walk-behind tractors and other non-core “small” equipment have been removed from the lists of products manufactured by the Perm plant: it again produces only turbojet aircraft engines and industrial gas turbine mechanisms. This is also a nationwide trend: the production of walk-behind tractors has been abandoned everywhere at similar enterprises.

However, many of the Luch MB-1 walk-behind tractors sold back in the last century are not only in working condition, but also work season after season without serious breakdowns; pass from hand to hand and are considered a familiar assistant in the households of families from different regions of Russia and the CIS. Not every mechanism is able to demonstrate such durability in use.

The design of this equipment is so universal that analogues of the Luch MB-1 walk-behind tractor are still produced by the Chinese, as well as several enterprises in Russia that, under the guise of their own production, make these walk-behind tractors from the same Chinese parts and components.

The Luch MB-1 walk-behind tractor is a compact, relatively lightweight unit for cultivating soil in personal plots and vegetable gardens, as well as for some other agricultural work. It is as simple as possible in design and quite convenient to use. Maintenance and repair are also not something complicated that requires special knowledge or preparation. All you need to do is read the instruction manual. And spare parts are available and inexpensive.

Initially, the Luch MB-1 walk-behind tractor is equipped only with a soil cultivator designed for loosening and turning over the soil. But, complete with other additional mounted implements, purchased separately, this walk-behind tractor can not only cultivate, but also plow light “garden” soils; harrow; cut and clear furrows, hill up and weed rows; dig up potatoes and other root vegetables; mow; transport goods.

The compatibility of the walk-behind tractor with additional attachments is good, but when using them with the MB-1, of course, you must carefully follow the instructions contained in the operating manual for each attachment. A powerful and economical four-stroke engine allows you to use the walk-behind tractor in various household works.

Structurally, this walk-behind tractor consists of the following main parts: engine; clutch mechanism; gearbox; handles with controls; two tire wheels (or four cultivators). Details about the engine are given below. the clutch mechanism is designed to transmit the energy of the crankshaft torque from the engine to the gearbox and consists of two belts; forward pulley; reverse pulley; drive pulley; gear pulley, rods; forward and reverse levers, and springs.

The gearbox is designed to change the gear ratio and transfer rotational energy from the gearbox pulley to the wheels and working equipment. The chain reducer consists of two halves of the housing; chains; shift shaft; shift knobs; three blocks of sprockets and an output shaft.

The controls located on the handles are used to change the operating modes of the engine and the direction of movement of the walk-behind tractor. They consist of: the steering wheel itself; motor control lever; gear shift knobs. The steering wheel is attached with four bolts to the gearbox angles, and it is equipped with height adjustment.

The engine control lever is attached to the right handlebar with a screw, which is connected to the throttle valve of the regulator by a cable through a lever and a spring. On the left handle of the steering wheel, on top, there is a forward lever, which is connected to the forward pulley through a rod, chain and spring. And below, on the same left handle, there is a reverse lever, which is connected through a chain, rod and spring to the lever on which the reverse pulley is installed. The transmission provides operation in 2 forward and 2 reverse gears.

The wheels on the Luch MB-1 walk-behind tractors are either pneumatic or cast rubber, size 4.00×10″. The outer part of the tread is most often made in the form of a traditional herringbone, and when installing such wheels on a walk-behind tractor, they must be placed with the corners forward. And to get the best results when plowing, hilling and digging up root crops, it makes sense to replace rubber wheels with metal ones with lugs. Instead of wheels, a cultivator can be installed on the output shaft of the gearbox.

The walk-behind tractor is equipped with a DM-1 engine. This is a four-stroke single-cylinder carburetor gasoline engine air-cooled, displacement 316 cubic centimeters, power 3.7 kW (5 horsepower). Piston diameter –76 mm; piston stroke – 70 mm. Engine lubrication system - splash and in the oil sump; ignition system – contactless, electronic, with spark plug “A17B” (AII-I GOST 2043-75).

Starting is carried out by a built-in manual starter. The direction of rotation of the crankshaft is counterclockwise (view from the crankshaft pulley). The permissible engine tilt angle is no more than eight degrees.

The arrow indicates the screw for adjusting the fuel supply to the carburetor of the Luch MB-1 walk-behind tractor.

Modern Chinese analogues of the MB-1 are equipped with Lifan, Lianlong, Vanguard, and Briggs and Stratton engines. And also the CADVI 168F-2A motor (Kaluga Engine), which is produced in Kaluga from foreign components and is similar in its technical characteristics to DM-1. In general, for its time, “DM-1” was a very progressive engine option for compact agricultural machinery. Many walk-behind tractors of those years were equipped not with four-stroke, but with two-stroke engines.

The engine oil must be changed after the first five hours of operation. Then - every 25-30 hours of operation. Mineral automotive motor oil for carburetor engines is suitable for the motor of the Luch MB-1 walk-behind tractor. The oil in the walk-behind tractor transmission is changed every 100 hours of operation.

The transmission of the Luch, like all old walk-behind tractors, is worm-gear. This is the simplest option, but it is the most reliable and durable.

The clutch on the walk-behind tractor is manual, with drive V-belts. The transmission from the engine to the gearbox (forward and reverse), and from the engine to the mounted implements, is V-belt. Chain reduction gear: 1st gear – 1:17, 2nd gear – 1:7.

Technical specifications in numbers

The weight of the walk-behind tractor is 100 kg.
Travel speed is from 3.6 to 9 km/h.
Overall dimensions: length – 1.5 m; width – 60 cm; height – 1.15 m.
Ground clearance – 140 mm.
Working track width – 570 mm; transport gauge – 310 mm;
The minimum turning radius is 1.1 m.
Traction force – not less than 100 kgf.
The working width of the equipment cultivator is adjustable, from 725 to 1200 mm; diameter – 360 mm.
Average fuel consumption is from 1.5 to 2 liters of gasoline per hour.
The volume of the fuel tank is 3.6 liters of fuel.

The Luch MB 1 walk-behind tractor is used for operation on small household plots, vegetable gardens and gardens for individual use, as well as in areas located in swampy areas, shallow forest areas and in suburban areas. This model is produced in Russia and is not very common. The equipment is suitable for working with light soils.

The Luch MB 1 model is distinguished by its ease of operation and small size. An economical and powerful motor installed in a walk-behind tractor allows it to be used to perform various operations. The model is aggregated with various mounted implements, which allow:

clear and make furrows;
plow;
harrow;
dig up and hill up root crops;
water;
spray plants;
remove snow;
loosen the soil;
mow the grass;
transport goods;
spray the plants.

Video

Working with Luch MB 1 equipment special training does not require. However, each attachment will have to be inspected and studied (the rules of use are described in detail in the operating manual). Otherwise, problems may occur when working with the walk-behind tractor.

In the factory configuration, the equipment comes with cultivators designed for turning over and loosening soil, extension cords and special wheels.
Various modifications of the Luch MB 1 model differ in the installed engines, which can be either imported or domestic.

Among the features of the model are:

ease of operation of the walk-behind tractor. Working with it does not require serious physical effort;
the presence of a chain gearbox with a V-belt drive, ensuring smooth movements of the equipment;
quick-release wheels and a removable steering wheel make the device very compact and greatly facilitate its transportation;
the steering wheel is vertically adjustable;
wheels with pneumatic rubber tires and a large tread provide good traction with the soil;
protective fenders installed on the wheels protect against dirt, extending the service life of the equipment;
reliable transmission with 2 forward and 2 reverse gears;
powerful engines ensure efficient and productive operation of the walk-behind tractor.

Specifications

The mass of the Luch MB 1 model is 100 kg. In this case, the equipment can move at a speed of 3.6-9 km/h.

Motoblock dimensions:

length – 1500 mm;
width – 600 mm;
height – 1150 mm;
ground clearance - 140 mm;
working track – 570 mm;
transport gauge – 310 mm;
minimum turning radius – 1100 mm.

The working width of the equipment cultivator is 725-1200 mm, diameter – 360 mm.

Fuel consumption

The average fuel consumption of the Luch MB 1 model is 1.5-2 liters per hour. The fuel tank holds up to 3.6 liters of fuel.

Engine

The Luch MB 1 walk-behind tractor can be equipped with various options engines of the Subaru, Lian-Long, Vanguard and Lifan brands. However greatest distribution received versions with power plant KADVI 168F-2A, produced using foreign components using Honda technology. This unit with overhead cylinders is characterized by low specific fuel consumption, low weight, excellent design parameters and minimal noise levels.

The 4-stroke, 1-cylinder petrol engine has forced air cooling, a carburetor and a built-in manual starter. The lubrication system is carried out by splashing. The engine is started using a built-in manual starter.

Engine characteristics:

working volume – 0.316 l;
rated power – 3.7 (5) kW (hp);
rotation speed – 3200 rpm;
permissible motor tilt angle – 8 degrees;
cylinder diameter – 76 mm.

The unit of the Luch MB 1 walk-behind tractor is unpretentious and runs on A-76, A-80 and AI-92 gasoline.

When working with the engine there is certain rules. The manufacturer does not recommend refueling the tank while the engine is running and touching the spark plug bracket or ignition wire.

This article is dedicated to the reliable “assistant” of every summer resident. It's about about the Luch MB 1 walk-behind tractor. This model is intended for small plots of land, own vegetable gardens, as well as for garden care. In addition, the walk-behind tractor can be used for work in suburban areas and swampy areas. Despite the fact that the walk-behind tractor is produced in Russia, the model is not particularly popular. The manufacturer recommends cultivating light soils.

The main distinctive characteristics of Luch MB 1 are ease of operation and compact size. It is worth considering that the compact dimensions allow you to transport the walk-behind tractor. The multifunctionality of the unit is achieved by compatibility with a large number attachments. The main power unit consumes a small amount of fuel. This in turn will save cash on fuel, which is a significant help in our time. Beam MB 1 can perform the following work:

plow the land;
harrow;
dig up root crops;
clear snow from the yard, garden, vegetable garden;
transport various cargoes;
water, spray plants.

To start working with a walk-behind tractor, you don’t need higher education. The unit is very easy to use. But, before starting the work process, you will still have to study the design and operating principle of the attachments. In case of any problems, the operator can always use the repair instructions for the Luch MB 1 walk-behind tractor.

Characteristics of the walk-behind tractor

The engine is the KADVI 168F-2A power unit, which was developed similar to the famous Japanese company Honda. The engine is 4-stroke, with one cylinder. The walk-behind tractor uses gasoline as fuel. Air cooling system. The principle of operation of the fuel system is based on the principle of operation of the carburetor of the Luch walk-behind tractor. The productive element is started by a manual starter. Engine power is 5 hp. Recommended fuel types: AI-76, AI-80, AI-92.

While the walk-behind tractor is operating, it is strictly forbidden (by the manufacturer) to refuel the gas tank or come into contact with the tip of the spark plug and the ignition wire. Main overall dimensions of Beam MB 1: length - 1500 mm; width - 600 mm; height - 1150 mm. The minimum turning radius is 1100 mm. In the working position, the unit grips 700-1150 mm, the grip depth is 360 mm. The gas tank is designed for 3.6 liters. In this case, fuel consumption is 1.5-2 liters. per hour

Detailed review of "LUCH"

When purchased, the factory equipment includes pneumatic wheels, rototillers and extension cords. Beam MB 1 has several modifications. The models differ from each other in the installed power plant. Thus, the manufacturer installs Japanese Subaru engines. In addition, there are models with engines from such brands as Lifan, Vanguard, Lian-Long. Without a doubt, the most models were produced with the domestically produced KADVI 168F-2A engine. During its development, Honda technologies were not absent.

The model is very reliable, serious breakdowns are quite rare. Due to the fast and confident operation of the walk-behind tractor, the operator is able to process land plot productive. Which in turn will have a positive impact on the harvest and profit. Resistant to low temperatures allows you to operate the walk-behind tractor in winter.

Let's get back to the renovation. Problems with the engine and walk-behind tractor in general occur very rarely. The main “troubles” can be caused by insufficient oil level in the engine. As a result, the well-known knock occurs. Therefore, you need to constantly monitor the oil level! Let us list the main advantages of the model:

Simple and easy control system. The operator does not need to exert much physical effort to cultivate the garden.
High productivity, which in turn has a positive effect on operation as a whole.
The chain reducer ensures smooth operation of the unit.
Compact dimensions make it possible to transport the walk-behind tractor.
Special wings installed at the bottom serve as a protective barrier against dust and dirt. These protective elements of the housing significantly extend the service life of the engine.
Functional gearbox allows you to select the required speed limit(2 forward and 2 reverse gears).

Pneumatic wheels have tenacious contact with the ground, slipping is not possible.

The Neva MB-1 walk-behind tractor has been produced since 1984 and during this time has gained the trust of many users. It has been modernized and improved, but there are still working copies from the 90s of the last century.

Manufacturer of Neva walk-behind tractors - Red October plant, St. Petersburg. This is a specialized enterprise for the production of motorcycle and agricultural machinery. The first Neva brand walk-behind tractor was released in 1984.

The walk-behind tractor is constantly being modernized and is still popular among buyers, as it has stood the test of time. The manufacturer has developed and supplied this technique new Multi Agro gearbox with an increased number of gears.

The Neva MB1 MultiAGRO walk-behind tractor has 3 forward gears and 1 reverse gear. By rearranging the belt on a double-strand pulley, you can get another set of gears that also have a functional purpose. Thus, for each agricultural and economic operation it is possible to select the appropriate speed, thereby increasing the productivity of the work performed.

In addition, the MultiAGRO gearbox is characterized by an increased gear ratio, which improves the traction and grip qualities of the walk-behind tractor.

The gear shift lever is located on the steering wheel, which is convenient when using the MB 1 walk-behind tractor as a vehicle.

In the MB1-FS/MB1-FS Premium modification, the presence of an electric starter, which is powered by an installed battery and a generator on the engine, makes it easier to start it, and also makes it possible to use the headlight at night. Now, in order to start the device, it is not necessary to pull the manual starter; you can simply turn the ignition key.

Motoblock Neva MB-1 detailed technical specifications

Type of walk-behind tractor (GOST 28523-90)	Average
Overall dimensions: length * width * height, mm no more	MB1: 1600x660x1300 MB1 Premium: 1600x660x1300 MB1-FS: 1650x660x1300 MB1-FS Premium: 1650x660x1300
Weight, dry, kg, no more	MB1: 75 MB1 Premium: 75 MB1-FS: 85 MB1-FS Premium: 85
Traction force on transport wheels with a load of 20 kg, kgf, not less	140
Angle of transverse static stability, degrees, not less	15
Ambient temperature limits, C	From minus 25 to plus 35
Forward speed (second value when rearranging the belt) of movement on pneumatic wheels, at an engine speed of 2500 rpm (max, engine torque), km/h	MB1/MB1-FS: First gear 2.1/2.6; Second gear 7.4/9.2; Reverse 1.8/2.3; MB1 Premium/MB 1-FS Premium: First gear 1.9/2.4; Second gear 3.7/4.6; Third gear 6.6/8.3; Reverse 1.6/2.0;
Forward speed (second value when rearranging the belt) of movement on pneumatic wheels, at an engine speed of 3600 rpm (maximum engine power), km/h	MB1/MB1-FS: First gear 3.0/3.8; Second gear 10.6/13.3; Reverse 2.6/3.3; MB1 PremiumMB1.FS Premium: First gear 2.7/3.4; Second gear 5.4/6.7; Third gear 10.0/12.6; Reverse 2.3/2.9;
Power take-off shaft (BQM) (GOST28524-90)	Side pulley for V-belt transmission, located perpendicular to the longitudinal axis of symmetry of the MB. The rotation speed is equal to the engine crankshaft speed.
Possibility of installing attachments	there is - active (harvesting brush, snow blower, water pump, lawn mower) and passive through a coupling (hiller, plow, cart, snow blade, potato digger).
Chassis system	Single-axle, wheel formula - 2x2
Ground clearance, mm	120
Clutch	Constantly switched off, activation mechanism - tension roller for the V-belt
Gearbox	Mechanical, gear-chain with double-sided axle release
Number of gears	MB1/MB1-FS ((2+1) 2): Four gears - forward; Two gears - reverse. MB1 PremiumMB1-FS Premium ((3+1)2): Six gears - forward; Two gears - reverse.
Tire	Pneumatic - 4.00*8; 16x6.50-8
Track	Variable, stepwise adjustable
Track width, mm	Normal 320 With extensions 570
Diameter of milling cultivators, mm	360
Axle (hub) diameter	30 cm
Working width, m	6 cutters 1.2 4 cutters 0.86
Tillage depth, cm	up to 20
Steering gear	Rod, with the possibility of intermediate settings of the steering wheel in vertical and horizontal planes
Fog lamp	MB1/MB1 Premium: - MB1-FS/MB1-FS Premium: 202A,3743
Lamp	MB1/MB1 Premium: -MB 1-FS/MB1-FS Premium: NC 12V 55W
Battery	MB1/MB1 Premium: - MB1-FOMB1-FS Premium: DT 1218
Auto fuse	MB1/MB1 Premium: - MB1-FS/MB1-FS Premium: F133 10A
Engine	MB1/MB1 Premium: 4-stroke, carburetor, gasoline, single-cylinder with forced air cooled MB1-FS/MB1-FS Premium: 4-stroke, carburetor, gasoline, single-cylinder with forced air cooling, electric starter and generator
Fuel type	Pure gasoline AI - 92, AI - 95
Engine oil	SAE 10W30, SAE 10W40, SAE 10W50, SAE 15W30, SAE 15W40, SAE 30, SAE 40. Brands of fuel, engine oil and refills - according to the Engine Manual
Engine cooling	air
Gearbox (oils used and operating temperature)	Transmission oil SAE85W-90 API GL-5 (it is allowed to use TM-5 oil (from -25 to +35) GOST 17479.2-85). Filling volume l., 1.5.
Belt	A53
Air pressure in pneumatic tires:	4.00-8 - 1.5 +0.2 kgf/cm 2 16x6.50-8 - 2 -0.2 kgf/cm 2

Engines of the Neva MB 1 walk-behind tractor

MB modification	Engine brand and type
	(2+1)*2
MB1-S7.0
MB1-S6.5 PRO
MB 1-B6.5	I/C 6.5 from Briggs & Stratton (4-stroke, single-cylinder, air-cooled, with recoil starter)
MB1-B6.0	I/C 6.0 Compact from Briggs & Stratton (4-stroke, single-cylinder, air-cooled, with recoil starter)
MB1-B6.0-FS
MB1-B6.0K	1/C 6.0 Compact from Briggs & Stratton (4-stroke, single-cylinder, air-cooled, with manual starter)
MB1-S7.0 Premium	EX21 from Subaru (4-stroke, single-cylinder, air-cooled, with manual starter)
M51-C6,OPRO Premium	EX17 from Subaru (4-stroke, single-cylinder, air-cooled, with manual starter)
MB1-B6.0-FS Premium	I/C 6.0 from Briggs & Stratton (4-stroke, single-cylinder, air-cooled, electric starter and generator)
Reducer Multi Agro (2+1)*2
MB1-B 6.5	Briggs&Stratton (USA) RS950
MB1-N	Honda GP200