Engine Service Life
Engine efficiency and maximum utilization of engine performance depend on the adherence to proper operation and maintenance recommendations. This includes use of the recommended lubricants, fuels,and coolant/antifreezes.
For the engine maintenance that is required, see the Operation and Maintenance Manual, "Maintenance Interval Schedule" in the Maintenance Section.
Engine Specifications
| 3600 Series Fast Vessel Engine Specifications |
|
|---|---|
| Operating rpm | 750 to 1000 |
| Low Idle rpm | 300 to 400 |
| Cylinders and Arrangement | 50 degree vee 12 or 16 |
| Bore | 280 mm (11.0 inch) |
| Stroke | 300 mm (11.8 inch) |
| Displacement | 18.7 L (1127 cubic inches) |
| Compression Ratio | 13:1 |
| Aspiration | TA |
| Rotation (viewed from flywheel) | Counterclockwise (Standard) Clockwise (Optional) |
| Fuel Delivery | Unit Injectors |
| Fuel | See the Operation and Maintenance Manual, "Refill Capacities and Recommendations" in the Maintenance Section. |
| Method of Starting | Air Starting Motors |
| Maximum Allowable Exhaust Back Pressure | 254 mm (10 inches of H2O) |
| Maximum Allowable Inlet Air Restriction | 3.7 kPa (15 inches of H2O) |
| Load Profile | 85% of time at 100% rated power and 15% of time at less than 50% rated power |
| Ambient Conditions | 45°C (113°F) Air 32°C (90°F) Sea Water |
| Brake Specific Fuel Consumption | 205 g/kw h ± 5% tolerance |
| Valve Lash Setting (Inlet) | 1.0 mm (.039 inch) |
| Valve Lash Setting (Exhaust) | 0.50 mm (.020 inch) |
 | |
| Illustration 1 | g00279793 |
3612 Engine. (1) through (12) Cylinder numbers. (A) Exhaust valves. (B) Inlet valves. (C) Flywheel. | |
 | |
| Illustration 2 | g00279792 |
3616 Engine. (1) through (16) Cylinder numbers. (A) Exhaust valves. (B) Inlet valves. (C) Flywheel. | |
Drives and Gear Trains
Front Drives
 | |
| Illustration 3 | g00268299 |
The illustration shows SAE standard rotation. (1) Jacket water pump. (2) Aftercooler and oil cooler pump. (3) Auxiliary water pump. (4) Oil pump. (5) Fuel transfer pump. | |
| Front Drives For 3600 Series Fast Vessel Engines | |
|---|---|
| Component | Speed (1) |
| Jacket Water Pump | 2522 |
| Aftercooler and Oil Cooler Pump | 2522 |
| Auxiliary Water Pump | 2230 |
| Oil Pump | 1524 |
| Fuel Transfer Pump | 1995 |
| ( 1 ) | The speed of the component is listed for an engine that is operating at 1000 rpm. For an engine that is operating at 900 rpm, multiply the speed of the component by .9. For an engine that is operating at 800 rpm, multiply the speed of the component by .8. |
 | |
| Illustration 4 | g00268303 |
(6) Oil inlet. (7) Oil outlet. (8) Water inlet. (9) Water outlet. (10) Auxiliary water inlet. (11) Auxiliary water outlet. | |
Engine Front Gear Train
 | |
| Illustration 5 | g00268306 |
(1) Crankshaft. (2) Idler. (3) Idler. (4) Jacket water pump. (5) Aftercooler and oil cooler pump. (6) Auxiliary water pump. (7) Oil pump. | |
| Front Gear Train For 3600 Series Fast Vessel 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
 | |
| Illustration 6 | g00268312 |
(1) Crankshaft. (2) Large cluster idler. (3) Small cluster idler. (4) Camshaft. (5) Idler. | |
| Rear Gear Train For 3600 Series Fast Vessel Engines | |
|---|---|
| Gear | Number Of Teeth |
| (1) Crankshaft | 81 |
| (2) Large Cluster Idler | 90 |
| (3) Small Cluster Idler | 45 |
| (4) Camshaft | 81 |
| (5) Idler | 81 |