GL OW E777 E735 E999 Evolution Radial Glow Engines ®
EN NOTICE All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, Inc. For up-to-date product literature, visit horizonhobby.com and click on the support tab for this product.
EN • Always ensure the aircraft is secure and will not move once the engine is started. • Always rebind your transmitter to your receiver(s) after setup and before first flight. • Always ensure the throttle failsafe is set to low throttle in your transmitter. • Always perform a range check prior to flight. • Always cut off the fuel supply (pinch or disconnect the fuel line to the carburetor) or use the throttle linkage to shut off the air in order to stop the engine.
EN Introduction Thank you for purchasing an Evolution® radial engine, one of the finest engines in the marketplace today. Evolution is committed to you having a positive experience and a lifetime of great operation with your new engine. It is important that you read the engine manual before starting the engine for the first time. Evolution radial engines have different requirements than engines that you may have operated in the past.
EN 1 7 2 EVO LUT I ON 1. Install the engine on the airframe with Cylinder #1 in the top (12:00) position (Cylinder #1 is above the Evolution Engines logo). You can modify this position if you are using the optional collector ring and you want the exhaust to exit the cowl in a specific direction. 6 3 4 5 2. Use three steel screws (not included) to attach the engine mounting ring to the firewall. The size of the mounting ring screws will vary depending on the aircraft.
EN 4. Make sure the fuel tank is no farther than 100mm (4 in) from the back of the firewall. The center of the fuel tank should be in line with the carburetor to prevent fuel siphoning. • You do not need to use a fuel pump with Evolution radial engines • Always use a fuel filter inside the fuel tank • We recommend using medium (3mm) or large (3.5mm) inner diameter fuel line • Make sure there are no sharp bends in the fuel line between the fuel tank and the engine. 5.
EN 2. If necessary, add baffles to the engine to prevent air from moving between the cylinders. Engine baffles force cool air through the cooling fins and greatly reduce the intake area in the front of the cowl. 3. Add cooling baffles to the engine cowl between the top of the cylinder heads and the inside of the cowl. Do not cover the engine exhaust pipe with the baffles. This needs cool air over it to prevent exhaust valve damage.
EN Engine Break-In Process A good break-in process is essential to the longevity and performance of your Evolution radial engine. You can complete the break-in process by either mounting the engine on a test stand or on an airframe. If you choose to mount the engine on an airframe, remove the cowl during break-in to ensure adequate cooling. Specific fuel is required for the break-in process. Please refer to the chart above for the proper fuel.
EN Engine Tuning The break-in settings for the carburetor needles are: High-speed needle: 2 1/2 turns open Tip: For the initial break-in, open the high speed needle to 1-1/2 turns before starting. Low-speed needle: 2 turns open Use a tachometer (HAN111 or HAN156) to tune the engine based on RPM. WARNING: Always adjust the carburetor from behind the propeller. Keep all loose items away from the propeller at all times. Never reach over or around the propeller. 1. Start the engine. 2.
EN Test 1. Allow the engine to run at idle with the on-board glow driver ON. Observe the engine RPM. 2. Turn the on-board glow driver OFF. If the engine RPM immediately drops, the low-speed needle is too rich. Lean the low-speed needle (turn clockwise). If the engine continues to run at the same RPM with the on-board glow driver OFF, the low-speed needle setting is close to ideal. Low-Speed Needle Tuning 1. Adjust the high-speed needle for the current conditions. 2.
EN Evolution Blue Block After-Run Oil has been proven to provide long term protection against corrosion when applied immediately at the end of the flying day. Even waiting overnight before applying after-run oil will greatly increase the chances of corrosion within your engine. Take care of your investment. Please do not believe the claims of the fuel companies that claim “No need to use after-run oil”. They don’t own your engine! 3. Occasionally, you will need to adjust the valves.
EN Replacement Parts NOTICE: If a repair outside of normal maintenance as noted in the manual is required, you MUST send the engine to an authorized Horizon Service Center for repair. Any repair work performed outside of an authorized Horizon Service Center will void the warranty.
EN Exploded View Optional Silencer Ring (not included) Carburetor Sub-Assembly Rocker Arm Sub-Assembly Inlet and Exhaust Pipe Sub-Assembly Push Rod and Pin Prop Drive Lock Cone Propeller Drive Propeller Washer Propeller Nut 13
EN 1 Year Limited Warranty What this Warranty Covers Horizon Hobby, Inc., (Horizon) warranties that the Products purchased (the “Product”) will be free from defects in materials and workmanship for a period of 1 years from the date of purchase by the Purchaser.
EN facility. An Online Service Request is available at http://www.horizonhobby.com under the Support tab. If you do not have internet access, please contact Horizon Product Support to obtain a RMA number along with instructions for submitting your product for service. When calling Horizon, you will be asked to provide your complete name, street address, email address and phone number where you can be reached during business hours.
