DCEC 4BTA3.9-GM65 Auxiliary Engine
DCEC 4BTA3.9-GM65 marine auxiliary engine is a 4-cylinders in line, 3.9 liters four-strokes engine with 102 mm bore and 120 mm stroke.
Equipped with BYC A fuel pump and GAC electronic governor, engine comes with turbocharger and Water-Air Intercooler.
The prime power for generator set 1800RPM of DCEC 4BTA3.9-GM65 marine auxiliary engine is 65kW.
DCEC provides both heat exchanger cooling and radiator cooling marine auxiliary engines, which mainly using for marine main generator and marine emergency generator.
For the emergency generator set applications, we provide additional options for customers such as dual starter motor system (we provide both electric and spring starter motor for customers), which are required by most of international classifications.
All of DCEC marine auxiliary engine are comes with dry type exhaust system, which means dry type exhaust manifold and dry type turbocharger, SeaMac provides upgrading services for water-cooled exhaust system, which modify dry type exhaust system into water-cooled exhaust system, which are quite important and often requested by passenger boat projects.
Advantages of 4BTA3.9-GM65 Auxiliary Engine
Advanced design and sophisticated manufacturing, adapt to various harsh working conditions, high strength, strong ability to work under heavy loads.
The cylinder block and cylinder head adopt integrated design to prevent the occurrence of engine water and oil leakage. The parts are about 40% less than other similar engines, and the failure rate is greatly reduced.
The cylinder bore adopts a platform mesh honing design, the perfect geometric structure effectively prevents oil leakage, and the use of advanced technologies such as new piston ring components and gasket crimping and molding reduces oil loss.
Adopt Holset supercharger with integral wastegate valve, low speed response and strong power.
The three-stage fuel filter ensures a balanced level of particle dispersion, protects the main components of the fuel system, and maximizes the life of the engine.
Technical Specifications
| Engine Model: | 4BTA3.9-GM65 |
| Engine Type: | 4 Cylinders |
| Displacement: | 3.9 L |
| Rated Speed: | 1800 RPM |
| Rated Power: | 87 BHP @ 1800 RPM |
| Peak Torque: | 219 g / kW.h @ 1800 RPM |
| Classification: | N/A |
| Aspiration Method: | Turbocharged & Water-Air Intercooler |
| Emission Standard: | N / A |
| Bore*Storke: | 102 mm * 120 mm |
| Packing Size(L*W*H): | N / A |
| Wet Weight: | 350 kg |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
Engine Model | Fuel Consumption | Rated Power | Fuel System | Aspiration |
| 4BTA3.9-GM47 | 214 g / kW.h @ 1500 RPM | 63 BHP @ 1500 RPM | BYC A Pump / GAC 24 V Electronic Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-GM65 | 219 g / kW.h @ 1800 RPM | 87 BHP @ 1800 RPM | BYC A Pump / GAC Electronic Governor | Turbocharged & Water-Air Intercooler |
| ——END—— | ||||
General Infomation of DCEC 4BTA3.9-GM65 Marine Auxiliary Engine | |||
| Engine Model | 4BTA3.9 – GM65 | Displacement | 3.9 L |
| Bore * Stroke | 102 mm * 120 mm | Aspiration | Turbocharged & Water-Air Intercooler |
| Cylinders | 4 Cylinders, in Line | Fuel System | BYC A / GAC Electronic Governor |
| Rated Power | 87 BHP (65 kW) @ 1800 RPM | Standby Power | 96 BHP (72 kW) @ 1800 RPM |
| Dry Weight | 350 kg | Instantaneous Inertia of Rotating Parts (Without Flywheel) | 0.143 kg·m2 |
| Distance Between Center of Gravity and Rear End Face of Cylinder Block | 373 mm | Distance From Center of Gravity to Center Line of Crankshaft (Above Crankshaft) | 163 mm |
| Low Idle Speed | 950 – 1050 RPM | Compression Ratio | 17.3 : 1 |
| Piston Speed | 7.2 m / sec | Firing Order | 1 – 3 – 4 – 2 |
| Governor Regulation | ≤ 5 % | ||
Installation Data of DCEC 4BTA3.9-GM65 Marine Drive Engine | |||
| Maximum (Static) Bending Moment at Rear Face of Block | 1356 – N.m | ||
Fuel System of DCEC 4BTA3.9-GM65 Marine Drive Engine | |||
| Maximum Fuel Flow of Oil Pump | N / A | ||
| Maximum Oil Intake Resistance-Clean Fuel Filter | 63.5 mmHg | ||
| Maximum Oil Intake Resistance-Dirty Fuel Filter | 100 mmHg | ||
| Maximum Fuel Inlet Temperature | 60 ℃ | ||
| Maximum Allowable Fuel Return to Tank Flow | N / A | ||
| Maximum Allowable Return Line Pressure | 517 mmHg | ||
| ——END—— | |||
System Technical Data of DCEC 4BTA3.9-GM65 Marine Auxiliary Engine | ||
| Exhaust System | Maximum Exhaust Back Pressure | 76 mmHg |
| Exhaust Gas Flow | N / A | |
| Exhaust Gas Temperature | 510 ℃ | |
| Turbocharger Outlet Exhaust Temperature (Rated Power) | N / A | |
| Turbocharger Outlet Exhaust Temperature (Standby Power) | N / A | |
| Exhaust Heat Loss Work | N / A | |
| Exhaust Pipe Diameter is Recommended | 75 mm | |
| Maximum Allowable Instantaneous Bending Moment of Turbocharger Outlet Flange | N / A | |
| Maximum Static Support Weight of Turbocharger Outlet Flange | N / A | |
| Air Intake System | Maximum Intake Air Restriction with Heavy Duty Air Cleaner— | 380 mmH2O |
| Clean Element | ||
| Maximum Intake Air Restriction with Heavy Duty Air Cleaner— | 635 mmH2O | |
| Dirty Element | ||
| Minimum Dirt Holding Capacity with Heavy Duty Air Cleaner | N / A | |
| Maximum Temperature Rise from Ambient to the Inlet of the Turbocharger | 17 ℃ | |
| Maximum Pressure Drop from Supercharger Outlet to Intake Manifold | 75 mmHg | |
| Intake Air Flow | N / A | |
| Heat Rejection to Ambient | N / A | |
| Intake Manifold Pressure | N / A | |
| Minimum Ambient Temperature for Cold Starting | -12 ℃ | |
| LubricationSystem | Normal Operating Oil Pressure Range | 207 – 448 kPa |
| Maximum Sump Oil Temperature | 120 ℃ | |
| Low Idle – Minimum Main Channel Pressure | N / A | |
| Rated Speed – Main Oil Channel Pressure (Min/Max) | N / A | |
| Oil Capacity when Using Bias Sump: Maximum -Minimum | 9.5 – 8.5 litre | |
| Minimum Oil Pressure— At Low Idle | 69 kPa | |
| Minimum Required Lube System Capacity – Sump Plus Filters | 10.9 litre | |
| Sump Inclination Angle— Front Up | 20 ° | |
| Sump Inclination Angle— Front Down | 45 ° | |
| Sump Inclination Angle— Side to Side | 45 ° | |
| Sump Capacity – Minimum | N / A | |
| Sump Capacity – Highest Level | N / A | |
| Cooling System | Coolant Capacity – Engine Only. | 7.9 litre |
| Maximum External Engine Cooling Cycle Resistance | 28 kPa | |
| Maximum Static Height of Coolant Above Crankshaft Centerline of Engin | 14 m | |
| Thermostat Standard Regulating Temperature (Range) | 82 – 95 ℃ | |
| Minimum Pressure Cap Pressure | 69 kPa | |
| Maximum Engine Coolant Temperature at Standby/Rated Power | 104 / 100 ℃ | |
| Cool Start System | Minimum Recommended Battery Capacity – 18 ℃ Completely Cold, Only the Engine Cold Starting Current | 1375 CCA * 625 CCA |
| Minimum Recommended Battery Capacity – 18 ℃ Completely Cold, Only Engine Reserve Capacity | N / A | |
| Maximum Voltage Drop of Starting Loop | N / A | |
| Minimum Ambient Temperature without Auxiliary Cold Start | -12 ℃ | |
| Minimum Starting Speed Required without Auxiliary Cold Starting | N / A | |
| Maximum Allowable Resistance of Starting Loop | 0.0012 hms * 0.004 hms | |
| ——END—— | ||
Scopes of Supply of DCEC 4BTA3.9-GM65 Marine Auxiliary Engine | ||||
| Air Intake System | 1. Air Intake Manifold | Exhuast System | 1. Exhuast Manifold | |
| 2. Air Filter | 2. Turbocharger | |||
| 3. N / A | 3. Exhuast Elbow | |||
| Starting System | 1. Starter Motor | Charging System | 1. Charging Alternator | |
| 2. Starter Rely | 2. N / A | |||
| Lubricating System | 1. Oil Pump | Fuel System | 1. Fuel Transfer Pump | |
| 2. Oil Filter | 2. High-Pressure Fuel Pump | |||
| 3. N / A | 3. Machanical Governor | |||
| 4. N / A | 4. Fuel Filter | |||
| Engine Shut-Down System | 1. Engine Fuel Shut-Off Solenoid | Power Output System | 1. Flywheel | |
| 2. N / A | 2. Standard Flywheel Housing | |||
| ——END—— | ||||
Optional Accessories of DCEC 4BTA3.9-GM65 Marine Auxiliary Engine | ||||
| Air Intake System | 1. Air Intake Pre-Heater | Exhuast System | 1. Muffler & Bellows | |
| 2. Air Intake Pre-Filter | 2. Flame Trap | |||
| 3. Air Filter Alarm System | 3. Spark Arrestor Type Muffler & Bellows | |||
| 4. N / A | 4. DPF System | |||
| Fuel System | 1. Coarse Filter | Engine Auiliary Accessories | 1. Hydraulic Oil Pump | |
| 2. Fuel Pre-Heater | 2. Hydraulic Cluch | |||
| Starting System | 1. Manual Magnetic DC Contactor | Cooling System | 1. Engine Monitor | |
| 2. Dual Ears Flywheel Housing | 2. Engine Protection System With Alarm System | |||
| 3. Spring Starter Motor | 3. Machanical Engine Control Lever Syste | |||
| 4. Air Starter Motor | 4. Electric Engine Control Lever System | |||
| 5. Hydraulic Starter Motor | 5. N / A | |||
| 6. Manual Magnetic DC Contactor | 6. N / A | |||
| Power Output System | 1. Gear Reduction Gearbox | Cooling System | 1. Coolant Pre-Heater | |
| 2. Reverse Gear Box | 2. Jacket Water Heater | |||
| Lubricating System | 1. Oil Pre-Heater | Engine Mounting System | 1. Shock Absorber Pad | |
| ——END—— | ||||
Committed to providing reliable premium propulsion system and power system for all kinds of ships around the world, SeaMac is a sub-brand of EMAC group that focused on maritime application.
SeaMac’s ranges of products mainly inclduing marine main engine, marine gearbox, marine propellers, marine control lever system, marine auxiliary engine, marine generator set and emergency generator set.
For more information of our marine proplusion and power system products, you are welcome to visit SeaMac homepage: www.seamac.com
Modifiable components of DCEC 4BTA3.9-GM65 Marine Auxiliary Engine | ||||
| Air Intake System | 1. Installation Position of Air Filter | Starting System | 1. 12V Starter Motor for 12V Electric System | |
| 2. Upgrade to Heavy-Duty Type Air Fitler | 2. Upgrading to Specified Brand and Speicifications of Starter Motor | |||
| Exhuast System | 1. Can Modify Installation Position and Direction of Turbocharger | Charging System | 1. 12V Charging Alternator for 12V Electric System | |
| 2. Water-Cooled Exhuast Manifold | 2. Explosion-Proof Charging Alternator | |||
| 3. Water-Cooled Turbocharger | 3. Upgrading to Specified Brand and Speicifications of Charging Alternator | |||
| Fuel System | 1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-Hearter | Engine Auiliary Accessories | 1. Additional Auxiliary Systems Can Be Added for Special Applications | |
| Engine Shut-Down System | 1. 12V Solenoid for 12V Electric System | Cooling System | 1. Can Modify Engine Into Keel Cooling System | |
| 2. Explosion-Proof Solenoid | 2. N / A | |||
| Lubricating System | 1. Oil Pan Position | Power Output System | 1. Can Modify Size of Flywheel Housing and Flywheel | |
| 2. Number of Dipstick | 2. Dual-Ear Flywheel Housing (For Twin-Starter System) | |||
| 3. Position of Dipstick Can Choose from 6 Positions | 3. Some of Models Can Modify Flywheel Housing Into PTO Integrated Type | |||
| 4. Can Modify Oil Filter to Be Remote Installation | 4. Engine Have Connecting Port of PTOs, That Able to Provide Power Output | |||
| Engine Mounting System | 1. Can Modify Engine Mouting Bracket | |||
| ——END—— | ||||
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
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