Specifications

52
CD557
Engine
DESCRIPTION
SPECIFICATION - MCM (Sterndrive)
DESCRIPTION
D7.3L D-Tronic D7.3L D-Tronic LD
Crankshaft Horsepower (Kilowatts)
1
300 (223) 260 (195)
Propeller Shaft Horsepower (Kilowatts)
1
270 (202) 230 (170)
Engine Type V-8 Cylinder Diesel
Displacement 444 cu. in. (7.3L)
Firing Order 1-2-7-3-4-5-6-8
Bore 4.11 in. ( 104.39 mm )
Stroke 4.18 in. ( 106.20 mm )
Compression Ratio 15:1
Valve Clearance - Intake / Exhaust Non-Adjustable (Hydraulic)
Maximum Pressure Difference Between Cyl. 75 PSI ( 517 kPa )
Maximum High Idle No Load rpm 3950 3750
Governed rpm Setting (Begins At:) 3850 3650
Rated rpm at Wide-Open-Throttle
2
3600-3800 3400-3600
Low Idle rpm
625 ± 25
Oil Pressure:
750 rpm 10 PSI [ 0.7 bar (69 kPa) ] Minimum
Oil
P
ressure:
3600 rpm 40-70 PSI [ 2.8 - 4.8 bar ( 276-482 kPa ) }
Oil Temperature
190° - 250° F ( 88° - 121° C )
Thermostat: Water:
170° F ( 77° C )
Coolant Temperature
170° - 210° F ( 77° - 99° C )
Electrical System 12-volt Negative ( – ) Ground
Alternator Rating 949W, 14.6v, 65A
Recommended Battery Rating 1500 cca or 300 Ah
Starter 12v, 2.4 kW
1
Power rated in accordance with NMMA Procedure - ISO 3046 (Technically Identical to ICOMIA 28-83).
2
Refer to “Conditions Affecting Operation - Propeller Selection” for additional information.