![Marine Power Solutions MP-321 Operation Manual Download Page 19](http://html.mh-extra.com/html/marine-power-solutions/mp-321/mp-321_operation-manual_1727347019.webp)
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Valve timing
Intake valve opens
8°before T.D.C
Intake valve closes
42°before T.D.C
Exhaust valve opens
42°before T.D.C
Exhaust valve closes
14°after T.D.C
Valve clearance (cold)
Intake valve (mm)
0.15~0.20
Exhaust valve (mm)
0.15~0.20
Max. speed (r/min)
3240
Idle speed (r/min)
900
Fuel injection timing (°)
14-17
Injection pressure (MPa)
16~17
Exhaust temperature(°)
≤550
Oil temperature (°)
≤105
Reasonable outlet water temperature (°)
80~90
Oil pressure
At rated speed (kPa)
20~400
At I idle speed (kPa)
≥50
Capacity of oil sump (L)
3
Cylinder head bolts (N.m)
80~90
Main bearing cap bolts (N.m)
50~60
Connecting rod bolts (N.m)
50~55
Flywheel bolts (N.m)
80~90
Pulley bolts (N.m)
110~130
Main bearing seat bolts (N.m)
60~70
Fuel injection
Model
Axis needle type
Fuel injection pump
Type
Plunger type
Plunger diameter(mm)
6.0
Lube oil pump
Type
Inner and outer rotors
Cooling water pump
Type
Centrifugal typr
Speed(r/min)
4000
Flow(L/min)
100
Lift(mW.G)
6
Starting motor
Type
QDY1257A
Power(kW)
1.2
Voltage(V)
12
Alternator
Type
Permanent magnet
alternator
Power(kW)
Voltage(V)
14
Fuel filter
Spin-on
Oil filter
Spin-on
c
Air filter
Sponginess
Battery
Capacity(A.h)
≥90
Voltage(V)
12