background image

24i - 28i / CS  Engine Manual

more infos: www.3w-modellmotoren.de

 Loose propeller bolts can also lead to sheered propeller bolts further leading to accidents

and crashes. Check these bolts before starting your engine.

 Flipping the prop with your hand or fingers can lead to serious accidents! Always use a

rubber stick to start the engine!

 Not having the plane secure can be lead to serious accidents. Depending on its size use

one, two, or more helpers to secure your model. Always tell your helpers to be ready for

the model to start at full power. Remember, these engines have a high power output.

 Do not put your finger(s), any items, or any other parts of the body into the rotating propeller.

 Never tune the carburetor whilst engine is running! Stop the engine. Tune the carburetor

and start the engine again. Repeat this procedure until the carburetor is properly tuned.

 Make sure that no gasoline will be splashed into the hot muffler(s).

 Only 3W mufflers, or mufflers authorized by 3W with an acceptance (test) number, should

be used.

 Only 3W-ignition systems should be used for proper operation.

Important:

Using unauthorized products or failing to follow the instructions in this manual will void your

warranty immediately.

Pilots check list

We strongly recommend checking the following agenda for your own safety before starting!

 Check the propeller bolts for tightness

 Check that the spinner is firmly attached

 Check the propeller for possible damage

 Check to be sure you have the throttle position at idle

 Check all batteries

 Check servo functions

 Check to see that the ignition switch is OFF

 Check pressure (6-8 bar) system of retract (if applicable)

 Check all linkages for play

 Check your wheels for possible damage and easy running

 Check the wing mounting for tight fit and proper attachment

 Check the canopy for tight fit and proper attachment

 When starting the engine one person (minimum) has to hold the model

Summary of Contents for 24i CS

Page 1: ...ENGINE MANUAL 24i 28i CS www 3w modellmotoren com 24i 28i...

Page 2: ...n designing two and four stroke engines for gasoline and diesel for 38 years We are continually looking at new technologies and working on new designs Please be assured that we at 3W always strive to...

Page 3: ...rmany direct at your costs The garantee is limited to the value of the product The guarantee does not cover any damage caused by misuse or neglect accidents abrasion exposure to extreme temperatures s...

Page 4: ...equate filtering of your fuel Maintain your engine properly keeping it clean etc Use a pre flight check list before flying your model Secure your model properly when starting Not use your fingers or h...

Page 5: ...ox should be stiff enough to prevent engine vibration and it should also have a solid firewall The firewall of the motor box should be made from 1 4 aircraft plywood for engines up to 106cc or 3 8 air...

Page 6: ...crank case will be distorted leading to the crankshaft starting to twist further leading to the crank case being destroyed To mount the engine directly onto a large wide former or firewall for the fo...

Page 7: ...location position of the engine in the fuselage Operating temperature The normal operating temperature range for your engine is 176 212 Fahrenheit 80 100 Celsius If the temperature of the engine rises...

Page 8: ...gap the ignition module can overheat Important If the electronic ignition overheats it will malfunction e g backfiring or shutting down Ignition details The red cable is positive The ignition timing...

Page 9: ...e an identical shape This is especially important when using 3 or 4 blade propellers You must use a drill press to drill your propeller You must drill the propeller from the rear A drill guide is reco...

Page 10: ...nut Then solder the arm in place Refer to the attached illustration Note The use of a soft pushrod for the throttle plastic or nyrod is not recommended Use a metal or carbon fiber pushrod with a plast...

Page 11: ...ay behind the line of the rotating propeller never to the side or the front After Initial Break In Use high grade fully synthetic 2 stroke oil Use the oil manufacturer s recommended gas to oil mixture...

Page 12: ...tank ventilation and the carburetor fuel line Use small plastic cable ties on all fuel line to fitting connections We recommend cutting the fuel line in the fuel tank in half And then joining them bac...

Page 13: ...ly tuned Make sure that no gasoline will be splashed into the hot muffler s Only 3W mufflers or mufflers authorized by 3W with an acceptance test number should be used Only 3W ignition systems should...

Page 14: ...t 20 seconds Due to the high power and torque of the engine s it is not recommended to open the throttle abruptly Precision tuning of the carburetor The use of a tachometer is highly recommended And a...

Page 15: ...and is vibrating strongly Balance the propeller Check the ignition timing Check your plumbing for air fuel leaks Check your spark plug for carbon and check the spark plug gap Check the motor mount to...

Page 16: ...e Vitesse de rotation 1500 8500 min 1 rpm Weight Poids incl ignition 1345g 2 96 Ibs 1210 g 2 67 Ibs Crankshaft 3 ball bearings 3 Roulement billes Connection rod Bielle Needle bearings on both ends Rou...

Page 17: ...24i 28i CS Engine Manual more infos www 3w modellmotoren de mounting bolt pattern ATTENTION this drawing is in 1 1 size disable any Acrobat print setting to fit it into paper size...

Page 18: ...nt consumption depends on the voltage of battery used with increasing voltage current consumption goes down Like all other electronic devices the ignition box gets warm under operating conditions For...

Page 19: ...cat car votre droit de garantie en cas de r clamation n est valade que sur pr sentation de ce document Cette garantie est valable seulement si accompagn e d une preuve d achat Facture du revendeur Con...

Reviews: