MTZ 1220.3 - Page 16

MTZ 1220.1/1220.3 Section С. Technical data
C4
Diesel engine
Engine model
D-245.2S2
Manufacturer
ОАО Minsk Motor Plant
Type
Four-cycle, turbo-charging with after-
cooling
Number of cylinders
4
Fuel injection system
direct injection
Compression ratio (calc
u
lated)
17±1
Cylinder bore
,
mm
110
Piston stroke
,
mm
125
Displacement
,
l
4,75
Firing order
1-3-4-2
Cool
ing system
liquid
Rated speed
,
rev
/
min
2200
Maximum no
-
load speed
,
rev
/
min
2420
Minimum idle speed
,
rev
/
min
800
±
50
Rated power
,
kW
90
Peak torque
,
Nm
490
Specific fuel consumption at opera
t-
ing power, g/(kW·h)
254,0
7,12
1,5
+
−
Clearance b
etween rocker shaft
striker and intake valve stem end
when diesel engine is cold, mm
- 0,25
05,0
10,0
+
−
Clearance between rocker shaft
striker and exhaust valve stem end
when diesel engine is cold, mm
- 0,45
05,0
10,0
+
−
Fuel inje
ction lead angle
up to top
dead center (TDC), degrees
3,5±0,5