Specifications
Engine Specifications
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| 3618 Engine Specifications |
|
|---|---|
| Operating rpm | 1050 |
| Low Idle rpm | 350 |
| Cylinders and Arrangement | 50 degree vee 18 |
| Bore | 280 mm (11.0 inch) |
| Stroke | 300 mm (11.8 inch) |
| Displacement | 18.7 L (1127 cubic inches) |
| Compression Ratio | 12.5:1 |
| Aspiration | Turbocharged aftercooled |
| Rotation from the flywheel end | Counterclockwise rotation is standard. |
| Clockwise rotation is optional. | |
| Fuel | See this Operation and Maintenance Manual, "Refill Capacities and Recommendations" (Maintenance Section). |
| Method of Starting | Air Starting Motors |
| Maximum Allowable Exhaust Back Pressure | 2.5 kPa (10 inch of H2O) |
| Maximum Allowable Inlet Air Restriction | 3.7 kPa (15 inches of H2O) |
| Load Profile | 85% of the operating time at 100% of the rated load 15% of the operating time at less than 50% of the rated load |
| Ambient Conditions (Maximum) | 45 °C (113 °F) Air 32 °C (90 °F) Sea Water |
| Brake Specific Fuel Consumption | 205 g/kw h ± 5% tolerance |
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| Illustration 1 | g00744906 |
(A) Exhaust valves (B) Inlet valves (C) Flywheel | |
Drives and Gear Trains
Front Drives
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| Illustration 2 | g00744903 |
(1) Jacket water pump (2) Aftercooler and oil cooler pump (3) Auxiliary water pump (4) Oil pump (5) Fuel transfer pump | |
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| Front Drives For 3618 Engines | |
|---|---|
| Component | Speed (1) |
| Jacket Water Pump | 2653 |
| Aftercooler and Oil Cooler Pump | 2653 |
| Auxiliary Water Pump | 2344 |
| Oil Pump | 1600 |
| Fuel Transfer Pump | 2095 |
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| ( 1 ) | The speed of the components are listed for an engine that is operating at 1050 rpm. |
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| Illustration 3 | g00744904 |
(6) Water outlet (7) Water inlet (8) Auxiliary water outlet (9) Auxiliary water inlet (10) Oil outlet (11) Oil inlet | |
Engine Front Gear Train
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| Illustration 4 | g00986972 |
(1) Crankshaft (2) Idler (3) Idler (4) Jacket water pump (5) Aftercooler and oil cooler pump (6) Auxiliary water pump (7) Oil pump | |
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| Front Gear Train For 3618 Engines | |
|---|---|
| Gear | Number Of Teeth |
| (1) Crankshaft | 96 |
| (2) Idler | 68 |
| (3) Idler | 67 |
| (4) Jacket Water Pump | 38 |
| (5) Aftercooler and Oil Cooler Pump | 38 |
| (6) Auxiliary Water Pump | 43 |
| (7) Oil Pump | 63 |
Engine Rear Gear Train
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| Illustration 5 | g00986973 |
(1) Crankshaft (2) Large cluster idler (3) Small cluster idler (4) Camshaft | |
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| Rear Gear Train For 3618 Engines | |
|---|---|
| Gear | Number Of Teeth |
| (1) Crankshaft | 83 |
| (2) Large Cluster Idler | 90 |
| (3) Small Cluster Idler | 45 |
| (4) Camshaft | 83 |
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