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Mercedes-Benz OM604 engine

FieldValue
nameMercedes-Benz OM604 engine
manufacturerMercedes-Benz
production1993–1998
predecessorMercedes-Benz OM601 engine
successorMercedes-Benz OM611 engine
configurationNaturally aspirated Straight-4
displacement1997 cc
2155 cc
bore89 mm
87 mm
stroke86.6 mm
84 mm
blockCast iron
headAluminum
valvetrainDOHC / 4 valves x cyl.
compression22.0:1
fuelsystemIndirect injection
managementLucas EPIC
fueltypeDiesel
oilsystemWet sump
coolingsystemWater cooled
power55-70 kW
torque135-150 Nm

2155 cc 87 mm 84 mm The Mercedes-Benz OM604 is a 1997 cc and 2155 cc inline-four cylinder (R4/I4) double overhead camshaft (DOHC) diesel engine with indirect injection manufactured by Mercedes-Benz between 1993 and 1998. It replaced the single overhead camshaft (SOHC) OM601 engine. Unlike other Mercedes Benz diesels at the time that used a Bosch inline injection pump the OM604 used the Lucas electronically controlled rotary distributor injection pump (EVE) which is less reliable. The seals of the Lucas injection pumps become brittle over time and leak, a seal kit is available

It is related to the straight-5 2.5 litre OM605 and the straight-6 3.0 litre OM606 engines.

Design

As per the OM601 the engine has a cast iron block and aluminum cylinder head. The block has 5 main caps, which are held by two bolts per cap. The head is a DOHC design with 4 valves per cylinder and split intake ports. Like the OM60, it has hydraulic bucket type lifters, thus requiring no periodical valve adjustment.

It has a double row timing chain that drives the injection pump and the camshafts. The sprocket is on the exhaust camshaft and both cams are connected by a gear drive, while the oil pump is driven by a separate single row chain.

Specifications

IDDisplacementBore x strokeMax. power (DIN-rated)Max. torqueYearsApplications
OM 604.910 EVE2155 cc89x86.6 mm70 kW @ 5000 rpm150 Nm @ 3100 rpm1993–1998W202 C 220 D
OM 604.910 EVE55 kW @ 5000 rpm1996–1998W202 C 220 D taxis
OM 604.912 EVE70 kW @ 5000 rpm1995–1998W210 E 220 D
OM 604.912 EVE55 kW @ 5000 rpm1996–1998W210 E 220 D taxis
OM 604.915 EVE1997 cc87x84 mm65 kW @ 5000 rpm135 Nm @ 2000 rpm1996–1998W202 C 200 D
OM 604.917 EVEW210 E 200 D

SsangYong D20DT engine / OM664.95x

The Korean company Ssangyong has developed D20DT (created under license from Mercedes) series diesel engines based on the OM604 engine. Compared to the original Mercedes diesel, the Korean uses the Common Rail fuel injection system, turbocharging (unlike N/A OM604) and has slightly increased the engine capacity to 1,998 cc, compared to 1,997 cc in the OM604. In the Mercedes range, the engine has an index of OM664.950 / 951 and was installed on the Actyon, Actyon Sports and Kyron models in the mid-2000s.

IDDisplacementBore x strokeMax. power (DIN-rated)Max. torqueYearsApplications
D20DT / OM664.9501998 cc86.2x85.6 mm104 kW @ 4000 rpm310 Nm @ 2700 (2750) rpm2005–2012(DJ) SsangYong Kyron M200 XDI
D20DT / OM664.951(CJ) SsangYong Actyon A200 XDI / Actyon Sports A200S XDI

References

References

  1. "Engine specifications for Mercedes OM604, characteristics, oil, performance".
  2. "Engine SsangYong Kyron SUV 2.0 200 Xdi 16V 4x2 (OM664.950) (2006) - Used Car, Motorcycle and Truck Parts {{!}} TotalParts".
  3. "USED ENGINE DIESEL D20DT SET ASSY 4WD EURO-4 SSANG YONG FOR KYRON / ACTYON 2006-11 MNR".
  4. "Engine SsangYong Actyon SUV 2.0 A200 Xdi 4WD 16V (OM664.951) (664951) (0) - Used Car, Motorcycle and Truck Parts {{!}} TotalParts".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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