RCGF RCGF35CCRE Manual de usuario
RCGF35CCRE Operator’s Manual
(note: the spare parts list and dimension of engine are in the end of manual)
RCGF 35cc
Parameter:
Type : 2 cycle piston valve type gasoline engine for airplane
Piston displacement Cylinder (cc) : 35cc (2.13 cu in)
Bore x Stroke (mm): 1.53 in(39mm) x 1.18 in (30mm)
Carburetor : RCGF
Ignition : DC-CDI (Computer Controlled auto advance, electronic ignition system)
Power supply: 4.8-8.4V
Maximum Output :4.1HP@9000
Requires: Gasoline, 2-cycle oil, ignition battery & propeller
speed rang : 1500-9000rpm
Gasoline-Version : Pre-mixed Fuel, 25-40 (Gasoline):1 , Recommend:30:1
(90% high otcane unleaded gasoline, Import gas into carbon fiber installations valves)
Lubrication Oil : 2 cycle engine oil
Propeller : 19X8 7900rpm (Standard Two leafs prop)
Suggested Propellers: 19x8 & 20x8,20X10
Suggested Break-in Prop: 19x8
Sparking plug: NGK CM6 Type
Cooling System : Air Cooled
RCGF engine package Includes: electronic CDI ignition, muffler, spark plug, gaskets,
bolts, stand off,throttle arm extension & manual.
Weight :
Engine: 2.03 lb (923 g)
Muffler: 3.4 oz (97 g)
Ignition Module: 4.4 oz (125 g)
Total: Weight: 2.52 lb (1145 g)
Technical Data:
Ignition Battery: 4.8-8.4 NiCd or NiMH, 6.6V LiFe or 2S LiPo pack
Gasoline/Oil Mix: 30:1
Replacement Spark Plug: NGK CM6 or equivalent
Idle Speed: 1800 rpm/min
Static Thrust:
19.9 lb (9 kg) @ 328 ft (100 m) altitude
19.0 lb (8.6kg) @ 5,900 ft (1800 m) altitude
SPARE PARTS LIST
(1) 1pc RCGF-35cc Gas Engine
(2) 1pc RCGF Spark Plug (NGK CM6 size)
(3) 1pc Muffler with gasket and bolts (5X16 mm)
(4) 4pcs stand offs
(5) 8pcs 5 x 20 mm bolts
(6) 1pc Electronic Ignition Module with additional tachometer lead
(7) Long Throttle Arm Extension
(8) RCGF Decal
Safety Tips and Warnings
● This engine is not a toy. Please place your safety and the safety of others paramount
while operating. RCGF will not be responsible for any safety issues or accidents involving
this engine.
● Operate the engine in a properly ventilated area.
● Before starting the engine, please make sure all components including the propeller
and the engine mount are secure and tight. It is strongly recommended that a good
quality screw sealant is used during engine installation.
● During the break-in period, it is recommended that the engine be installed on the
aircraft or a test stand with an appropriate shock absorber. Otherwise it is probable that
vibration could rebound back to the engine and serious damages may occur during the
break-in period.
● For your safety and the safety of others, please do not stand in front or in line with the
propeller when the engine is running. Keep onlookers away from the running engine,
especially small children.
● Always use a balanced spinner and a balanced propeller. An unbalanced spinner and
propeller combination will cause high levels of vibration and may cause the propeller
shaft to break. Always use a lightweight spinner on your engine. Lightweight spinners are
considered to be those with a cone wall of 1mm or less. Heavy spinners could cause the
propeller shaft to break. Securely tighten the spinner and propeller on the engine to
prevent it from being thrown off the engine while running.
● Never use a propeller that has hit the ground. Even though it may look good from the
outside, it may be cracked on the inside which may cause it to disintegrate while in use.
Do not use a nicked, cracked or split propeller.
● Keep foreign objects away from the propeller. Make sure that nothing can be “sucked in”
by the propeller.
● Never start the engine on loose gravel or sand.
● Do not attempt to stop the engine by throwing anything into the path of the propeller.
● Make sure the fuel line is well-secured to the engine and to the fuel tank so that it won’t
come off in flight.
● Do not use silicone fuel line because it will be dissolved by the fuel. Use gasoline
approved vinyl or neoprene rubber fuel line. Always secure the fuel line away from the
cylinder. The engine’s heat can damage the fuel line.
● Never touch the engine immediately after a run. The engine will be hot.
● Before transporting your model, remove all the fuel from the fuel tank and fuel lines.
● Always use high-quality oil intended for 2-stroke (2-cycle) engines. It’s a good idea to
use a petroleum based 2-cycle motor oil like Lawn Boy All Season – Ashless, Generation
II oil for the break-
in period. Break-in should be considered about the first 3-5 gallons you run the engine. A
high quality synthetic 2-cycle oil is recommended for optimum performance and a longer
engine life. Synthetic 2-cycle oils leave fewer combustion byproducts than natural oil
which can foul the engine and exhaust ports, resulting in reduced performance. Synthetic
oils also reduce friction and provide more fluidity at low temperatures.
● Do not install your throttle servo or kill switch servo inside the engine compartment.
Doing so could cause radio interference. Install all electronic radio devices as far away
from the engine as possible.
● The throttle and choke pushrods should be non-metallic.
● If the engine is not to be used for more than a month, drain the fuel tank and remove
any fuel from inside the carburetor. Do this by running the engine at idle until it quits by
running out of fuel.Keeping gasoline inside the carburetor over an extended period of
time will damage the diaphragm valve and clog passages inside the carburetor. Due to
the carburetor being more complicated than those used in glow engines, keep the fuel
clean by using a fuel filter. Use a filter intended to be used with gasoline engines. Metal
filters intended for glow engine are too coarse and will not screen out finer particles.
● Always filter your fuel by using an appropriate filter before putting it into the airplane’s
fuel tank.
● Gasoline is extremely flammable. Keep it away from an open flame, excessive heat or
sources of sparks.
● Do not smoke near the engine or the fuel tank.
● This engine was designed for use in a model aircraft. Do not attempt to use it for any
other purpose.
● Always install an ignition system kill switch on the aircraft used.
● Do not install your throttle servo or kill switch servo inside the engine compartment.
Doing so could cause radio interference.Install all electronic radio devices at least 12”
[305mm] away from the engine.
● Caution: Running the engine with a lean gas mixture will cause the engine to overheat
and burn the electrode of the spark plug. Pay close attention to the High-speed Needle
adjustment. Running the engine with the proper gas mixture will cause the spark plugs
to appear yellow at the ignition point.
● For optimum performance please use fresh or recently purchased 93 octane gasoline
(87 octane gasoline will suffice) with a 30:1 gas/oil mixture.
GAS/OIL Mixing Chart
1 Gallon Gasoline (128 fl oz/3.78L) / 2-Cycle Oil
(4.26fl oz/125.68ml) = 30:1 ratio
● Excessive running of the engine at idle speed can result in a seriously carbonized
spark plug.
● Keep the surface of the engine clean to ensure proper heat dissipation. Ensure proper
cooling/ventilation around the cylinder with adequate air exhaust.
● To avoid permanent damage to the electronic ignition system, never rotate the propeller
on your RCGF engine with the electronic ignition system switched on and the plug not
installed in the plug cap.
Installation Instructions
Prepare the engine for installation
Before beginning installation it’s a good idea to plan location of the various components
of the engine. Many of the following steps may need to be completed in a different order
than listed.
1. Check to see that all screws and bolts are tight. Check carefully for any cracks, broken,
or missing parts. Tighten or replace any damaged or missing parts before proceeding.
2. Install the silicone wire cover over the pick up lead coming from the engine (cut the
excess silicon wire cover) and connect the lead to the pick–up lead from the Electronic
Ignition Module. Secure the connection with the included three pin connector securing
clip.
3. Connect the kill switch lead to the red connector from the ignition control module using
the lead from the kill switch or with the included three pin connector with pig tail. Use one
of the included three pin securing clips to secure the connection.
4. Connect the ignition module battery to the kill switch. Any 4.8-6.0V, 1000mAh and
above capacity battery will work well for this. Use heat shrink tubing to secure this
connection.
5. Install the ignition kill switch and charge jack on the aircraft so that it is easily
accessible from the outside of the plane.
6. Install the ignition module securely in the airplane forward area. It is recommended
that a thin piece of foam rubber is placed between the module and the mounting surface
and that Velcro ® is used to hold the module in place.
7. Secure all connections with heat shrink tubing (not supplied)
8. Install the silicone ignition wire cover over the ignition wire to the spark
plug.
9. Install the spark plug into the engine cylinder (7-8lbs torque).
Installing the RCGF 35cc on Your Airplane
Note: The RCGF 35CC must be installed on at least a 9.5mm [3/8”] firewall.
The firewall must be securely glued to the airplane. Use triangle stock and pin the firewall
with hardwood dowels to reinforce the firewall glue joints. Never install the RCGF 35cc
onto a firewall thinner than specified because it may fail due to the power of the engine.
Note: The length of the engine from the back on the engine mount to the face of the
propeller washer is 6.34” [161mm].
1. Please check engine size chart (on the back cover of this manual) to drill the engine
mounting bolt holes.
2. Install the standoffs to the engine with the included 5 x 20mm SHCS and 5mm flat
washers (it’s a good idea to use 5mm lock washers between the SHCS and the flat
washers). Next, install the engine with standoffs to the firewall using 5 x 20mm SHCS
with 5mm lock washers and flat washers . Use threadlocking compound on all mounting
screws.
3. Install the fuel tank in the airframe. Use only gasoline approved fuel tank and fuel lines
and a gasoline approved stopper. One line should go to the carburetor and the other is to
be used as a vent (a vent line is simply an open ended fuel line from the fuel tank which
exits the engine compartment or the fuselage; most vent lines exit at the bottom of the
firewall).You can fill the tank by using the carburetor line as fill line if you have access to
it or install a third line to be used as fill line. Installing a third line is the cleanest and
easiest way to add fuel. An alternative fueling set up is a 2-line system with a T-fitting
approved for gasoline use. Be sure to use a filler plug with either a 2 line or 3 line set-up.
It's a good idea to add an extension to the vent line as shown, that goes up and to the
rear of the tank. This helps to avoid draining fuel from the tank when the model is pointed
down.
4. Install the throttle servo at least 12” [305mm] away from the engine. Make sure that
you get the carburetor’s full range of rotation with your servo travel. Be sure to use a non-
metallic linkage.
5. Install the choke servo (optional) at least 12” [305mm] away from the engine. Be sure
to use a non-metallic linkage.
6. Connect the ignition wire from ignition module to the spark plug.
7. Install the muffler onto the engine. Be sure to use threadlocker and that the ignition
wire does not contact the muffler.
8. Cut all necessary clearance, carburetor adjustment, cooling, and exhaust holes in the
cowl.
9. Make sure the cowl is secured to the airplane and that the knurled thrust washer
protrudes from the cowl by at least 3.2mm [1/8”].
Drill and Install the Propeller
The easiest way to drill the propeller to fi t the hub is to use a drill guide. If you do not
have a drill guide, you can use the following method to drill your propeller. Most
propellers within the recommended size range have a 0.393" [10mm] center hole pre-
drilled. If your propeller has this predrilled hole, move on to step 3. If not, start with step 1.
1. Remove the cowling from the aircraft. Use the included propeller
washer to mark the centering hole on the propeller
2. Once the location is established, use a drill press with a 10mm drill bit. In order to
achieve a clean hole opening on both sides of the propeller, drill only half way through
the propeller with the 10mm drill bit. Then flip the propeller over and drill completely
through the hole.
3. Next, set the engine at the top of the compression stroke. Note the position of the
ignition magnet with engine inverted.
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