DA 100 EFI MIL
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DA 100/120 EFI MIL SPEC Electronic Fuel Injected Engines OWNER’S MANUAL

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F Document Revision Table Revised Revision by Date Initial Release K.Gratien 3/14/2017 Updated Images K.Gratien 11/1/2017 Updated with Revision Table A.Sanchez 12/14/2017 Spark Plug Check/Adjust 100h>50h K.Gratien 4/13/2018 Programming Harness K.Gratien 10/15/2018 Oil & Fuel Callout K.Gratien 08/06/2019 Description of Change Approved By T.West T.West K.Gratien T.West DRB DRB 2 This Document is not controlled when printed. See HFE “Released Documents” folder on server for latest revision, or contact HFE Internation

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F General Safety Un-Packing Your Engine Getting Started Maintenance Absolute Ratings Power Schematics Interface Control Table Technical Specifications Warranty Information 3 This Document is not controlled when printed. See HFE “Released Documents” folder on server for latest revision, or contact HFE Internation

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F 1. General Safety: Read and understand this owner’s manual before operating your engine. You can help prevent accidents by being familiar with the controls and observing safe operating procedures. Operators Responsibility: 1. The operator should know how to stop the engine quickly in case of emergency. 2. A safety zone around the propeller should be established in which no person or object is allowed to enter. Install a guard around the propeller when appropriate. WARNING 1. Observe all safety precautions when working around the propeller....

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F 2. Un-Packing Your Engine: Caution: Your Engine comes with the ECU attached via the wire harness and pressure port tubes. Handle the ECU with Care when removing the assembly from the box. Engine with Intake Assembly Engine Control Unit (ECU) Main Wire Harness Owner’s Manual Mufflers and Installation hardware (Optional) Fuel Pump ATTENTION Observe Precautions for Handling Electrostatic Sensitive Devices (ESD). The ECU and Throttle servo on this engine contain sensitive electronic hardware. As a result this engine is packaged in electrostatic...

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F ENGINE CONTROL CONNECTOR FUEL PUMP ENGINE CONTROL UNIT 6 This Document is not controlled when printed. See HFE “Released Documents” folder on server for latest revision, or contact HFE Internation

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F FUEL LINE MANIFOLD AIR PRESSURE LINE MAIN THROTTLE BODY CONNECTOR CYLINDER HEAD TEMPERATURE SENSOR MANIFOLD AIR TEMPERATURE SENSOR HIGH PRESSURE FUEL LINE THROTTLE SERVO FUEL INJECTOR 7 THROTTLE BODY This Document is not controlled when printed. See HFE “Released Documents” folder on server for latest revision, or contact HFE Internation

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F 3. Getting Started: Engine Oil This engine was calibrated using Red Line 2 Racing oil at a mix ratio of 40:1. This oil type and mix ratio should be maintained to ensure that the fuel injection system and engine operates as designed. Oil Brand: Red Line Oil Type: 2 Stroke Racing Oil Mix Ratio: 40:1 40 parts Gasoline to on part Oil. Fuel Recommendations The engine was calibrated with 87 octane no-leaded gasoline. There is no need for premium grade gasoline due to the compression ratios of the engine. • High Altitude/High Temperature...

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F 2. Although not required, the engine should be isolated from the aircraft using appropriately sized rubber isolators. Consult HFE Int. for your specific application if you would like mounting recommendations. Be sure to specify that you are installing a fuel injected engine. 3. Refer to the interface control document for the wire harness connection and power requirements. FUEL SYSTEM WARNINGS: Do not connect the fuel port to the Manifold Air Pressure tube. Do not exceed 100 PSI (7 bar) of fuel pressure. Do not connect or disconnect the tube...

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F 7. Hold at wide open throttle for 15 seconds to verify that the air in the fuel system has been purged. The engine will hesitate and run rough if there is still air in the system. 8. Reduce the engine speed to idle. 9. Maintain at least 1 minute of idle time (after running at full speed) before turning the engine off to reduce thermal stresses on the hardware. Stating again after first start. 1. If temperature is below 0 °C set throttle position to 40% or 1400 PWM. Engine should start within the first few seconds. 2. If temperature is above...

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F Barometric Pressure: Verify that the barometric pressure matches a calibrated weather station within ± 0.5 kPa. Manifold Air Pressure: When the engine is not running, the Manifold air pressure should match the barometric pressure within ± 0.5 kPa. Manifold Air Temperature: This value should be approximately the same as the air temperature on the inside of the manifold ± 5 °C. Maintenance Schedule: Item Engine Oil Pre-Mix Spark Plug Check/Adjust Spark Plug Replace Air Filter Check/Clean Air Filter Replace Fuel Filter HFE OEM Maintenance...

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F 12 This Document is not controlled when printed. See HFE “Released Documents” folder on server for latest revision, or contact HFE Internation

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F The wiring held within the air cleaner assembly driving the throttle servo, fuel injector and manifold temperature readings. 13 This Document is not controlled when printed. See HFE “Released Documents” folder on server for latest revision, or contact HFE Internation

DA100/120 MIL SPEC OWNER’S MANUAL HFEDCN0205 Rev F P1- ECU Connection J1- connects to the bottom rear of throttle body base plate. Aircraft Omnetics 12 Socket #5 J2 pin Description 1 V IN 2 SUPPLY GND 3 V IN 4 SUPPLY GND 5 CAN H 6 CAN L 7 RS232 TX 8 RS232 RX 9 ENABLE 10 GND 11 RS232 MODE 12 TPS PWM IN J2- connects to aircraft avionics circled in RED. Programming harness also shares this connector for test running the engine without power from the aircraft. P2- provides Fuel Pump control P3- Crank position J3- Ignition power and trigger signal J4- Cylinder Head Temperature This Document is...