Mercruiser Big Block 8.2L V8 Marine Engine Product Specifications
(V-8 Models)Â
|
Models |
502 Mag MPI |
|
Propshaft Horsepower |
4151 |
|
Propshaft Kilowatts |
3091 |
|
Displacement |
502 cid (8.2 l) |
|
Maximum rpm @ WOT3 |
4600-5000 rpm |
|
Idle rpm in NEUTRAL3 |
600 rpm6 |
|
Oil Pressure @ 2000 rpm |
30-70 psi (207-483 kPa) |
|
Min. Oil Pressure @ Idle |
4 psi (28 kPa) |
|
Thermostat |
160°F (71°C) |
|
Timing @ Idle rpm4 |
8° BTDC |
|
Firing Order |
1-8-4-3-6-5-7-2 |
|
Electrical System |
12-Volt Negative (-) Ground |
|
Alternator Rating – Hot Operating Amps |
65 Amps |
|
Alternator Rating – Cole Operating Amps |
72 Amps |
|
Recommended Battery
Rating |
Minimum 650 cca/825 mca/150 Ah |
1 Power Rated in Accordance with NMMA (National Marine Manufacturers’ Association)Â
rating procedures.Â
3 Measured using an accurate service tachometer with engine at normal operating temperatures.Â
4 A special procedure must be followed to check or adjust timing. Consult your AuthorizedÂ
Mercury MerCruiser Dealer before attempting this procedure.
6 Idle speed on EFI models is not adjustable.
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