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Technical data
Engine designation .............................................................. MD22, MD22L, TMD22
Output, see sales literature
Operation ............................................................................. 4-stroke direct injection
Bore/Stroke mm (inch) ......................................................... 84.4/89.0 mm (3.33/3.50)
Displacement litres............................................................... 1.994 litres (122 in
3
)
Firing order........................................................................... 1-3-4-2
Direction of rotation (viewed from front)............................... Clockwise
Idling speed........................................................................... 775–825 rpm
Compression ratio, MD22 ..................................................... 18.1:1
MD22L ................................................... 17.0:1
TMD22 ................................................... 17.2:1
Max. rearward inclination under way .................................... 20°
Max. sideways inclination under way.................................... 30°
Engine weight incl. reverse gear kg (Ibs) ............................. 224 (492)
Engine weight incl. S-drive kg (Ibs) ...................................... 238 (524)
Valves
Valve clearance, adjustment cold engine
Inlet, mm (in) ..................................................................... 0.20–0.40 (0.008–0.016)
Exhaust, mm (in) ............................................................... 0.30–0.50 (0.012–0.020)
Valve clearance, check cold engine
Inlet, mm (in) ..................................................................... 0.25–0.35 (0.010–0.014)
Exhaust, mm (in) ............................................................... 0.35–0.45 (0.014–0.018)
Lubricating system
Oil capacity, engine............................................................... 6 litres (10.5 UK pints) 6.3 US quarts
Oil quality MD22, MD22L (API)............................................. CC or CD
1)
Oil quality, TMD22 (API) ....................................................... CD
Recommended SAE viscosity grades
1)
CD-oil is not recommended during the first 20/40 hours of operation.
Oil pressure, hot engine at full speed ................................... 2.5 kp/cm
2
, 250 kN/m
2
(36 Ibf/in
2
)
Fuel specifications
The fuel must be approved according to national and international standards for commercial fuels, for example:
– EN 590 (With environmental and sub-zero temperature specifications according to national requirements)
– ASTM D 975 No. 1-D and 2-D
– JIS KK 2204
Sulfur content: According to current legislation in the respective country.
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