11.4 M115T, and M92 Engines
Model M115T Model M92
Basic Technical Data
Rated power 80 kW (107 bhp) 63.5 kW (85 bhp)
Rated engine speed 2400 rev/min
Number of cylinders 4
Cylinder arrangement Vertical in-line
Cycle 4 stroke
lnduction system Turbocharged Naturally aspirated
Combustion system Fastram direct injection
Bore 100 mm (3.937”) 103.0 mm (4.055 in)
Stroke 127 mm (5.00”) 127 mm (5.00”)
Compression ratio 17.25:1 18.5:1
Cubic capacity 3.99 litres (243 in
3
) 4.23 litres (258 in
3
)
Valves per cylinder 2
Direction of rotation Anti-clockwise viewed on ywheel
Firing order 1, 3, 4, 2
Total weight (wet) 422.6 kg (933 lbs) 417.8 kg (921 lbs)
engine only including starter and alternator
Cooling System The coolant shown below is mandatory for use in all climates to
ensure that adequate levels of corrosion inhibitor are present.
It will give frost protection to -37
o
C.
Coolant 50% inhibited ethylene glycol or
50% inhibited propylene glycol with 50% fresh clean water
Fresh water ow 202 litre/min (44.4 gall/min) at 2400 rev/min
Coolant pump speed and
method of drive. Gear driven
System capacity 19 litres (4.18 gallons)
Pressure cap setting 50 kPa (7 psi)
Protection switch setting 96
o
C
Sea water pump type Jabsco gear driven model Jabsco gear driven models
25.4 mm (1”) full cam. 25.4 mm (1”) 2/3 cam
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