OM 352
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Motoren Mercedes Benz OM352 var en 5657 cm3 (5.7 liter) slagvolim rekke 6, 4 takts dieselmotor. Motoren er utstyrt med direkte innsprøytning, besørget av en Bosch PES dieselpumpe. Normalytelse varierer fra 60 kW til 124 kW (80 til 168 hp) avhengig av variant og bruksområde. Motoren bygget videre på arven fra OM 312.
Below is listed the specifications for a 130 hp OM352, model 353.961. This variant is commonly used in Mercedes Benz Unimog , such as the U1100 and U1300 models.
(information from the Unimog 435 Workshop manual, Book 1 Section 1.2/1)
Mercedes Benz Type: 352
Model: 353.961
Combustion System: Four-stroke diesel with direct injection
Number of cylinders, Cylinder arrangement: 6, vertical in-line
Bore: 97 mm
Stroke: 128 mm
Total displacement: 5657 cm²
Compression ratio: 17:1
Compression at starting speed: 22 bar up to 24 bar (2.2 to 2.4 MPa), minimum 20 bar
Continuous output at nominal speed: 96 kW (130 hp) @ 2800 rpm
Maximum torque at speed: 363 N·m (267 ft·lbf) @ 1700 rpm
Idle Speed: 700 rpm
Start of fuel delivery before TDC: 18 degrees
Injection Sequence: 1 - 5 - 3 - 6 - 2 - 4
Valve clearance, cold: (inlet 0.20 mm) (exhaust 0.30 mm)
Opening pressure of injection nozzles: 200 bar (20 MPa) + 10 (new), 180 bar minimum (used)
Operating temperature: 95 degrees Celsius
Oil pressure: nominal 2–5 bar (200–500 kPa), idle min 0.6 bar
Weight, dry: 460 kg, 1014 lb