6 cylinder YaMZ engines without turbocharging

Characteristics of YaMZ-236

Engine YaMZ-236M2-10

YaMZ-236 engines are the base models of the domestic manufacturer Yaroslavl Motor Plant . YaMZ-236 motors are made according to a single design scheme and differ in the number of cylinders. The adopted Y-shaped arrangement of cylinders is due to the desire to reduce the length of the engine and its weight, which contributes to a more rational layout and reduction in the weight of the car as a whole.

The YaMZ-236 M2-10 engine is a six-cylinder 4-stroke diesel engine with liquid cooling.

You can purchase from SUET Company both complete Russian YaMZ engines, as well as components and spare parts for the YaMZ engine you need. You can submit a request in any form orders

You can also order and buy the YaMZ-236M2-10 engine in a way convenient for you - by phone or by visiting our representative offices.

Diesel engines YaMZ-236 M2 are designed for a wide range of applications as power units of cars and heavy-duty vehicles: KrAZ , MAZ, Ural vehicles, road trains: Ural-4320-10, Ural-43202-10; chassis: Ural-43203-10; dump truck: Ural-5557-10; tractors: Ural-4420-10, Ural-44202-10; timber carrier: Ural-43204-10 and their modifications (for spare parts); motor graders A 120, loaders B 138 (ChSDM); re-equipment of Ural-375 and Ural-4320 (KAMAZ-740 engines). Based on their YaMZ-236 drive, a number of modifications for various purposes have been created: electric generators , pumping units and compressor stations .

Table of main technical parameters of YaMZ-236 M2-10 engines

* Detailed technical characteristics of YaMZ-236 and YaMZ-238 engines

Table of modifications of YaMZ-236 engines

oil for YaMZ-236 M2-10 is diesel in accordance with GOST 5304-54 and 8581-63 with the additive VNII NP-360 in an amount of 6-8%: in winter DP-8 and DS-8, and in summer DP-11 and DS-11 .

Design features and technical characteristics of YaMZ-236 diesel engines:

• Cylinder camber angle equal to 90°
• Two interchangeable cylinder heads
• Full support crankshaft with a common crankpin for each pair of connecting rods
• Centrally located camshaft of the gas distribution system and oscillating roller valve tappets
• Split type fuel equipment
• Cylinder arrangement: double row at an angle of 90°
• Cylinder diameter: 130mm
• Piston stroke: 140mm
• Cylinder displacement: 11.15 liters
• Compression ratio: 16.5
• Rated power: 175-195 horsepower

Reliability, problems and repair of YaMZ-236

The famous 6-cylinder engine from Yaroslavl was developed on the basis of the popular 8-cylinder YaMZ-238 and replaced the outdated YaAZ-204. The cylinder block is cast from cast iron with wet cast iron liners (liner protrusion above the plane of the block is 0.1 mm), has a V-shaped configuration with a camber angle of 90°. It is the same as the YaMZ-238, but does not have 2 cylinders. Inside the block there is a crankshaft on 4 supports, the piston stroke is 140 mm, the diameter of the journals is 110 mm, the connecting rod journals are 88 mm, and the length of the connecting rods is 265 mm. The diameter of the pistons is 130 mm, and their height is 100 mm.

On top of the block there are two 6-valve cylinder heads made of cast iron. The intake valves are 61mm, the exhaust valves are 48mm and the stem is 12mm thick. They are identical to the heads from YaMZ-238, but adapted for a 6-cylinder block. This is a lower engine, and accordingly, the camshaft is located in the cylinder block. Its characteristics are similar to the 8-cylinder engine: phase 246/266, lift 13.5 mm.

The valves on the YaMZ-236 need to be adjusted every 500 hours; their clearances are standard: 0.25-0.3 mm for intake and exhaust. The order of valve adjustment is: 1 – 4 – 2 – 5 – 3 – 6. Euro-2 engines could be equipped with both conventional heads and individual ones installed on each cylinder. The oil pressure on YaMZ-236 of all versions fluctuates around 4-7 kgf/cm2 (warm up engine).

This is a simple engine with direct injection and, depending on the modification, different versions of pumps, injectors, and on turbo versions, various turbochargers were used.

Today they continue to produce YaMZ-236, but they are being replaced by more modern YaMZ-7601 and YaMZ-656.

Differences between YaMZ 236 engines

1. YaMZ-236A - a model without a turbine based on the 236M2, distinguished by a 60-40 pump, an oil sump, and a crankshaft pulley. This motor is created to Euro-0 standards. Power 195 hp at 2100 rpm, torque 716 Nm at 1200-1400 rpm. This modification is found on the following cars: ZIL-5343, 4526, 5417, 6309, 6409; LAZ-42078, A1414, 52565; Neman-5201. 2. YaMZ-236B - a turbo engine with its own pistons, oil injectors, pump 607, fuel injectors 261 and a TKR 90 turbine. Power 250 hp. at 2000 rpm, torque 1030 Nm at 1200-1400 rpm. Environmental class version: Euro-0. Resource - 10,000 hours. We installed the engine on TM-120, VEKS 30L and T-12.3. YaMZ-236BE is the same as 236B, but it has a 607-10 pump, a liquid-oil heat exchanger, a single-section oil pump, and its own pump. Power 250 hp at 2000 rpm, torque 1030 Nm at 1200-1400 rpm. Resource - 800 thousand km. The motor is installed on MAZ-5336, 5432, 5434, 5516, 6303. Environmental class - Euro-1. 4. YaMZ-236BE2 - improved 236BE for Euro-2. New liners (protrusion above the block surface of 1.6 mm), pistons, piston pins and connecting rods (all from 7511) are used here. In addition, Euro-2 engines have heads with grooves, their own camshaft, injection pump 133-30 (324-20 on 236BE2-14), injectors 267. The power is the same, but the torque is increased to 1078 Nm at 1100-1300 rpm. The resource remained unchanged. You can find such an internal combustion engine on MAZ-5336, 5432, 5434, 5516, 6303; MZKT-8022, Ural-4320, BZKT-8027, KrAZ-6505 and 6510. 5. YaMZ-236BK - combine version of 236BE. Power 250 hp at 2000 rpm, torque 1030 Nm at 1100-1300 rpm. Combines with such a power plant: Acros 530 and Yenisei 860. 6. YaMZ-236G - atmospheric modification, analogous to 236M2, but with a 601 fuel pump and a different pump. Ecology complies with Euro-0. Unit power 150 hp. at 1700 rpm. Service life - 8000 hours. It was installed on EO-33211, 4225; DU-84, 85, 101; VEKS-20K, DZ-122B, GS-14.02, TVEX ET-25-80, VPM ML-119A. 7. YaMZ-236D - naturally aspirated with a 60-30 pump under Euro-0. This is a tractor version of the 236M2, its power is 175 hp. at 2100 rpm, torque 667 Nm at 1300-1500 rpm. Motor life - 8000 hours. You can find this motor under the hood of the T-150, HTZ-17221, RTM-160, OrTZ-150, GS-14.02 and 18.05. 8. YaMZ-236DK - combine harvester version 236M2 with injection pump 608. Power 185 hp. at 2000 rpm, torque 716 Nm at 1300-1500 rpm. The environmental class is Euro-0, and the service life is 8000 hours. It was installed on Yenisei-950, 954, 957, 959, 1200; KS-65, T-11.01, CHETRA 121. 9. YaMZ-236M2 - main atmospheric engine with a power of 180 hp. at 2100 rpm, with a torque of 667 Nm at 1250-1450 rpm. This is a Euro-0 motor with a 60-30 pump and a service life of 25,000 hours. They installed it on MAZ-5337, 5433, 5551; Ural-4320 and 5557; KS-4372, KS-5871, V138, TS-10, E30, EO-5119, DU-84, 85, 101; DZ-122, Kranex EK 270, ET26, PV-10/8M1, NV-10/8M2, AD60. 10. YaMZ-236N - turbocharged engine with a power of 230 hp. at 2100 rpm, torque 882 Nm at 1200-1400 rpm. It has a TKR-90 turbine, a 604 pump, 261 fuel injectors, its own pistons, oil injectors, and the ecology is Euro-0. The motor is similar to YaMZ-236B. Motor life - 10,000 hours. This internal combustion engine was installed on ChTZ B10M, BKK-1, PK-1. 11. YaMZ-236NE - turbo engine for Euro-1, analogous to 236N, but with a liquid-oil heat exchanger, with a different oil pump and pump, with fuel injection pump 604-10 (323-11 for 236NE-6, -18, -24). Its power and torque are similar to YaMZ236N. Technically, the motor is an analogue of the YaMZ-236BE. Cars with this engine: MAZ-104, 4219, 5256, 5277, 5336, 5432, 5551; Volzhanin 5270, LiAZ-5256, LAZ-5207, 5252. 12. YaMZ-236NE2 - analogue of 236BE2, but here the injection pump is 324-10 (133-20 on models 236NE2-3, -8, -14, -18, -30, -33, -36, -38). Power reduced to 230 hp. at 2100 rpm, torque 882 Nm at 1100-1300 rpm. Resource - 800 thousand km. You can find such a modification on Ural-3255, 4320, 4420, 5557; MAZ-5336, 5337, 5432, 5433, 5551, 5554; LAZ-5252, LiAZ-5256, Volzhanin-5270, Neman-5201. 13. YaMZ-236NB - model created on the basis of 236NE, power reduced to 165 hp. at 1800 rpm, torque 736 Nm at 1200-1400 rpm. It has its own crankshaft pulley, pump, pump 605-10, modified intake. Installed on CHETRA T9. 14. YaMZ-236ND - modified 236NE for tractors and combines, distinguished by a different crankshaft pulley, its own fan, pump 605-20. Power 210 hp at 1900 rpm, torque 882 Nm at 1200-1400 rpm. The engine is on the Vector combine and the ChTZ T10M tractor. 15. YaMZ-236NK - turbo engine for Euro-1, developed on the basis of the same 236NE. A 605-30 pump, another oil sump, and its own crankshaft pulley are installed here. Power 185 hp at 1900 rpm, torque 833 Nm at 1200-1400 rpm. This is a tractor engine and was installed on the T-150, KhTZ-181 and KhTZ-17222.

Malfunctions of YaMZ-236

This engine is a copy of the 238, but without two cylinders, the problems of these engines are the same: it also gets hot, the speed may fluctuate or the engine does not develop it, there are knocking noises or the engine starts to stall, etc. The causes of all these malfunctions are described here.