INSTRUCTION AND MAINTENANCE MANUAL
MZ 202
We recommend reading this manual before installing or using the
engine
Compact Radial Engines Inc.
#3-8473 124th Street
Surrey,B.C.
Canada.V3W-9G4
CONTENTS
PAGE
Warning
Introduction
Engine delivery
Warranty
Important safety tips
Technical specifications
Performance Diagram
Main torque settings
Oil and Fuel
How to prepare your fuel/oil Mixture
Pre-Start Procedures
Starting up the engine for the first time
Step One Break –In
Final check
Start up procedure
Adjusting the carburetor
The Gear Drive
Trouble-shooting
Wiring diagram
Maintenance schedule
List of spare parts
Preliminary flight inspection
Engine repairs logbook
Exploded view of the MZ202
Modifications or different mountings
Compared to original model
3
4
5
5
6
7
8
8
9
10
10
11
11
12
12
13
14
15
18
19
22
23
24
25
Date
2
WARNING
This is not an aeronautic approved engine.
This engine has not been subjected to durability and safety tests in compliance with aeronautical
standards and is not a certified engine. It is designed to be used in ULM or aeroplanes where
engine failure will not produce serious consequences.
The user must assume responsibility for all risks deriving from the use of this engine and must
understand that this engine is subject to sudden failure.
Engine failure may result in an emergency landing. Such accidents may cause serious material
damage, injury and/or death.
Never use an aircraft fitted with this engine in areas, conditions and altitudes that may cause
problems if forced to land as a result of sudden engine failure.
3
INTRODUCTION
Congratulations on having chosen the MZ202 engine. The special design of the various
components makes this a particularly lightweight, sturdy and reliable model. If it is installed
correctly and serviced regularly, your engine will last for a long time and meet your
requirements in full.
Avant-garde technology was employed to manufacture this engine which is unique in its kind.
The light alloy cylinder has been treated with Nikasil and is lightweight, reliable and has a
virtually endless life span. The crankshaft is made of nickel-chrome-molybdenum steel
hardened, ground and built to high standards of resistance.
Computer Numerical Control (C.N.C.) equipment and CAD-CAM technology have made it
possible to build ultra-light crankcase. Furthermore, the crankcase incorporates the electric
starter motor.
A 13.8 volt, 180-Watt alternator serves the ignition system and is used to re-charge the starter
battery. Electronic double ignition switching type with variable automatic timing guarantee
reliability, safety and optimum engine performance.
The above features ensure the MZ202 is a complete, lightweight and reliable propulsion system.
Like all high-performance engines, the MZ202 demands care and maintenance. It is vitally
important to use suitable fuel and a good blend of synthetic oil for two-stroke engines with a
50:1 ratio. Proper servicing and an appropriate use are essential requisites.
This manual aims to explain as clearly as possible how to install and get the best out of your
engine.
4
ENGINE DELIVERY
Upon delivery of the MZ202, check that the components were not damaged during
transportation. Free the engine from any pieces of packing material, which may still be trapped
between the cylinder head cooling fins or cylinder; check that the exhaust manifold and
carburetor are not obstructed.
WARRANTY
Warranty period:
The warranty is valid for a period of six consecutive months from the date the ORIGINAL
CONSUMER purchased the engine from an authorised distributor and/or authorised service
centre. Please retain your receipt, as it will serve as the date for proof of purchase.
Conditions:
The warranty will only be in effect when the purchase was made through an authorised
distributor issued by Manufacturer C.R.E. Inc. The manufacturer reserves the right to modify
dimensions and materials without prior warning. The warranty covers faulty components or
manufacturing defects.
The following item or conditions are not covered under warranty
- The normal wear and tear of components.
- Seizure and Piston scuffing
- The electric starter motor
- Damage produced by transporting the engine, accidents, fire, improper use, negligence
- Damage produced by premature wear or corrosion as a result of the engine being immersed
in water or other causes.
- Replacement parts and/or accessories that are not genuine MZ parts and/or accessories
- Damage resulting from the installation of parts other then genuine MZ parts
- Damage caused by failure to provide proper maintenance as detailed in the Operator’s
Manual. The labour, parts and lubricants costs of all maintenance services, including tuneups and adjustments will be charged to the owner
- Engines designed and/or used for racing or commercial purposes
- All optional accessories installed on the aircraft engine. (the normal warranty policy for
parts and accessories, if any, applies)
- Damage resulting from running the engine without a propeller
- non warranty continued:
- Damage resulting from modification to the engine not approved in writing by C.R.E. Inc.
- Use of a gearbox not designed by C.R.E. Inc.
- Use of propellers which exceed the inertia and balance limits as specified by C.R.E. Inc.
- If engine instruments have been installed not approved by C.R.E. Inc.
- Damage resulting from any foreign material ingestion
- Damage resulting from service by an unqualified mechanic
5
IMPORTANT SAFETY TIPS
Safety is everybody’s concern. We set out here below an incomplete list of safety precautions to
be taken when using the MZ202. It would be impossible to list all the circumstances, which
may occur when you use this engine, but by being aware of the potential dangers, you will also
reduce some of the risks involved with the use of this engine.
Nonetheless, here is some useful advice
- Never mix fuel in a closed environment where the vapours could cause an explosion.
- Ensure all the engine controls are fully functioning and that you are able to locate the STARTSTOP switch. Make sure you can activate all the controls easily and that you can therefore use
them instinctively and without hesitation.
- Never re-fuel if there is a chance of the fuel dripping onto the hot engine. Use only approved
containers and ensure you comply with the relevant safety regulations when transporting fuel.
- Before each use, check the engine’s mounting points, propulsion components, fuel lines,
wiring and fuel and air filters.
- Use only a clean fuel/oil mixture immediately before using the engine. Check the intake and
exhaust ports. When not in use, protect the engine to prevent impurities from entering the fuel
lines or the fuel itself. Ensure everything is correctly done before starting the engine.
- The engine must be always serviced regularly in order to foresee engine failure at all times.
- Never run the engine on the ground when the propeller is rotating unless the aircraft is located
in an area where you can check that nothing and no-one can access the danger zone.
- Never abandon your aircraft with the engine running.
- If the engine behaves unpredictably, keep a written record. In the event of any problems, do
not take to the air before solving the problem and make a record in the engine logbook.
6
TECHNICAL SPECIFICATIONS
Model
Type
Cooling system
Direction of rotation
Capacity
Bore x stroke
Compression ratio
Power output
Peak torque
Lubrication
Fuel type
Ignition
Carburetor
Spark plug
Operating temperature
Starting
Weight
GMP
MZ202
two-stroke, double-cylinder in line, lamellar
engine
air cooling system, by means of forced air (fan)
anti-clockwise seen from the PTO
626cc (Nikasil cylinder)
76 mm x 69 mm
9.1 / 1
63 hp at 6250 rpm
84 Nm at 5200 rpm
Fuel / oil blend 50 : 1 synthetic oil Castrol TTS
Super 95 RON / MON 85
Magneto flywheel with electronic transducer with
variable timing. Electric regulator and battery
charger output: 180W 13.8 Volt
2 x Bing 54 with float chamber and fuel pump.
NGK C8HS spark gap 0.7 mm (0.027”)
CHT max. 260° C (500°F)
EGT max . 680°C (1250 °F)
By 450 W electric starter motor
38 kg engine complete with starter motor,
carburettors, fuel pump, cooling system, exhaust
system.
7
MZ202 FREE AIR PERFORMANCE DIAGRAM
MAIN TORQUE SETTINGS
Name
Cylinder head screws
Crankcase screws
Magneto flywheel nut
Cylinder nuts
M6
M6
M10 x 1
M8
Nm
13 + 2
16 + 2
70 + 3
23 + 2
Pump suction pressure takeoff
Spark plug
Wooden Prop fastening screw
M6 x 1
M10 x 1.5
M8
6+2
20 + 2
15 + 2
Other screws or nuts
Other screws or nuts
Fan case
Fan nut
M8
M6
M6
M6
20 + 2
10 + 2
10+2
15+3
8
OIL AND FUEL
Whichever brand of oil and fuel you use, please read the following which will help you keep the
engine in perfect running order.
• The presence of impurities in the fuel is the main cause of engine failure. To prevent the fuel
from being contaminated, it is necessary to take care from the beginning, because the
potential risk increases if impurities enter the fuel tank. Always use a clean fuel container
that complies with safety standards. Always filter the fuel when you fill or change the
container.Do not fill the container to the brim; never forget that fuel may increase in volume.
• Do not use fuel/oil mixtures which have been stored for a long time or which have been
exposed to sunlight in a translucent container. Mix the fuel and oil thoroughly before filling
the fuel tank because there is a risk of the two liquids separating in time.
• Choose the same type and brand of oil and stick to it unless it causes problems. By doing so,
you will get to know the product well and you will be able to assess whether it suits your
engine. If you change the type of oil frequently and your engine has problems, you will never
know which type of oil is responsible for any problems you may have.
• It is extremely important to avoid switching from a synthetic oil to a mineral based oil. The
two types are not always compatible and, if mixed, it is possible that a film may form and
obstruct the engine’s components or cause other problems. As a rule of thumb, 20% of cases
where the user has switched from a synthetic oil to a mineral based oil has resulted in
problems with the engine.
• If the engine has been installed inverted (with the spark plug pointing downwards), choose an
oil that leaves few carbon deposits. Oil deposits tend to build up in the lowest parts, for
example, in the spark plug cavity. If these deposits do not burn during normal use, the spark
plug is fouled and this may result in self-ignition. Manufacturers of top brand lubricants
guarantee the quality of their products.
Oil specifications:: synthetic oil for two-stroke engines: 50 : 1 ratio (Castrol TTS
recommended)
Fuel specifications: the octane rating should be minimum: R.O.N.93 or more.
9
How to prepare your Fuel/Oil Mixture
A good method for preparing the fuel/oil mixture could prevent a good deal of problems. By
adopting the same method every time, the preparation will become an automatic process that
will simplify matters.
Always use a clean approved container: make sure it is also free of condensation and that you
know the exact capacity.
1. To dilute the oil more easily, pour a small amount of fuel into the container.
2. Pour in the required amount of oil. Shake slowly to mix the oil and fuel.
3. Add sufficient fuel to obtain the prescribed fuel/oil mixture. If you use a filter at this stage,
it should have a very fine mesh in order to filter any water or foreign particles.
4. Screw the lid back onto the container and shake vigorously. Pour the fuel/oil mixture
into the fuel tank of your aircraft. Use a funnel with a filter that is fine enough to prevent
any impurities from entering the fuel tank whilst allowing the oil to pass through.
PRE-START PROCEDURES
Before starting up the engine for the first time, carry out a general inspection, checking in
particular:
-
The carburetor and fuel feed circuit are securely installed.
Check the vacuum pressure tubing between the crankcase inlet and fuel pump, if you have a
Bing carburetor, or the base of the carburetor if you have a Tillotson model.
Check the condition of the electric cables and that the spark plug’s high tension lead has
been fitted correctly.
Check that the two black cables going from the engine shut-off control to the switch have
been connected correctly
Ensure the rubber engine mounts are properly installed and that the locking bolts have been
tightened sufficiently.
Check the gear box and all bolts, nuts on the gear box.
Never run the engine without the propeller; this is particularly important for the free air
model.
Ensure the propeller and locking bolts are in good condition. Check that the propeller is
suitable for the engine as well as the direction of rotation is correct.
10
STARTING UP ENGINE for the FIRST TIME AND BREAK-IN
The engine must be installed and a properly loaded, which means a propeller of the correct
rotation matched for max engine RPM. Also insure that the airplane is properly anchor or tied
to a strong a suitable anchor which will allow full engine run-up.
There are two steps which have to be followed to insure proper engine break-in occurs.
However during both steps insure that the temperature of the cylinder head never exceeds
260°C or 500 F. If during the break-in procedure you feel you are going to exceed the max
cylinder head temperature as per above, interrupt the run, cool down engine at idle for a
minimum of 1 minute and continue where you interrupted the run. During the break-in
procedure, it is particularly dangerous to increase the ratio of the fuel/oil mixture. An excessive
amount of oil will cancel the benefits of the break-in procedure of this engine.
STEP ONE
Step one is a
preliminary engine
run-up to insure that
the engine is
installed correctly
and that all systems
are working
correctly. After
completing Step one
insure all hoses are
not leaking and
cables are fastened
securely.(All time
lengths are minutes).
4000
3500
3500
3000
2500
2500
1800
2000
1800
1500
1000
500
0
1
1
1.5
1
#1
#2
#3
#4
TIME
1
1
1.5
1
RPM
2500
1800
3500
1800
Now that you have completed step one, Step two is to increase the revolutions of the engine
in increments of 1000 rpm every five seconds up to full throttle and maintain full throttle
for one full minute. During this time monitor the EGT (max 1250F) and CHT (max 500F)
then reduce the rpm in increments of 1000 rpm every ten seconds down to idle. This
concludes the break in period.
This engine is built with a ceramic coated cylinder lining and does not require extensive
break-in time. However, it is recommended for the first two hours of use to avoid
prolonged full throttle.
Best performance of this engine will be attained after the first ten hours of use.
Any irregularities in the engine speed may be caused by a badly adjusted carburettor.
After the first hour of run time is complete, and engine is cooled down the cylinder head bolts
must be re-torqued. And check that all other bolts are tightly fastened in accordance with the
torque settings given in the table above. (Engine must be cool)
11
FINAL CHECK
After having inspected all the bolts, there is one final and extremely important component to be
checked: the spark plug. The spark plugs are a sufficiently reliable indication of the carburetor.
Remove the spark plugs and check the colour of the ceramic insulator at the electrode end. If it
has turned a mid-brown colour, the carburetor has been adjusted correctly. Conversely, if it has
turned black or dark brown, the fuel is too rich. If the ceramic is a light brown or sand colour, it
means the fuel is too lean.
Adjust the carburetor accordingly (see ADJUSTING THE CARBURETOR)
Remember that an excessively rich blend will not cause any immediate problems to the engine
except that carbon deposits will form prematurely. Too weak or lean a blend, however, may
cause irreversible damage to the cylinder and piston.
The engine is now ready to be used as intended.
START UP PROCEDURE
Ensure the contact is on “start” and that you are able to disconnect the circuit immediately, if
necessary. Allow fuel to enter the fuel lines and carburetor by using your plunger primer.
Adjust the throttle position about 20% , Press the starter button until the engine starts (press no
more than 4 to 5 times, taking care not to overheat the starter motor).
After starting the engine, reduce the throttle gradually and disengage the starter as soon as
possible (prolonged use of the starter may damage the motor).
If the engine does not start, check the spark plug caps are secure and that the switch is on
“start”. If nothing still happens, remove and inspect the spark plugs.
If the spark plug is damp, the engine is flooded. Remove the spark plugs, disengage the
ignition and use the starter to crank the engine to discharge any excess fuel in the cylinders.
Replace the spark plugs after having dried them and repeat the starting procedure.
HOW TO USE THE ENGINE
Switch on the engine following the start up instructions.
Wait until the head temperature reaches around 100°C (212 °F), at this point you can use the
engine up to full power checking that the CHT does not go over 260°C (500°F).
When you reduce the RPM, it is normal that CHT may increase a bit for a few seconds in order
to dissipate normal internal temperatures.
12
The air cooled engine is different from the liquid cooled engines in that the CHT temperature will
fluctuate so it is very important to monitor the CHT temperature at all times.
ADJUSTING THE CARBURETOR
Choke and idle adjustment.
1- Choke adjustment.
Before adjusting the idle, ensure that the choke screw is adjusted correctly. This must be
done on a warm engine; the screw is located to the left of the idling mixture adjusting screw in
the main body of the carburetor.
• Switch off the engine and twist the air screw all the way (without applying excess force) then
loosen by turning out the screw (1½). Turns.
• Start the engine, adjust the idler screw so the engine is running at the same speed or faster and
adjust accordingly.
• To do so, turn the air screw slowly in the appropriate direction; this operation should only be
attempted with the engine mounted on a test stand or by trial and error with the engine
switched off, due to the proximity of the propeller.
• It may be necessary to give the screw a ½ turn more or less than the prescribed amount.
2- Idle adjustment.
The minimum number of revs is 1500 rpm. If the idle is not adjusted correctly, the engine
will run irregularly. To adjust, turn the large, external screw in or out accordingly.
Throttle cable
- Once the throttle cable has been fitted, adjust the freeplay between the carburetor and the
throttle lever by acting on the tensioning device.
- Set the throttle lever to minimum.
- Check that the carburetor slide is free to move and that the cable sheath has less than 1 mm of
freeplay (check by pulling the sheath). If necessary, adjust the cable adjusting nuts to achieve the
proper end play.
- Check that the two carburettors open at the same time. It is advisable at this time to sycro-nize
your carburetor use an appropriate carb syc tool.
Choke cable.
The choke cable should have 2-3 mm of freeplay so that the slide is completely free when the
choke is not in use. Adjust by acting on the relative tensioning device.
13
STOP PROCEDURE
Before switching off the engine, maintain a minimum 2000-2500 RPM this will allow a cool
down period and allow that the CHT temperatures to reduce to 150 °C (302°F), then reduce the
throttle to minimum, wait a few seconds, and then shut down the engine. If you follow this
procedure during each engine shut down this will help your engine TBO.
THE GEAR DRIVE
Function of the gear drive
Two-stroke engines are designed in such a way as to generate full power at a high number of revs,
namely, 6000 rpm or higher. At these speeds, the performance of the propeller would be
unsatisfactory on account of its small diameter and would produce an unacceptable amount of
aerodynamic noise on account of the speed of rotation.
The only way of reducing the noise and boosting performance is to fit a gear reducer between the
engine and the propeller
Choosing the right reduction.
This engine is sold with mechanical gear reduction which includes helical gears. We choose this
type of gear for the minimum noise it makes and for the power it can give in a compact size. Our
gear reduction also includes a centrifugal clutch. This combination helps rid any misalignment
and therefore aid in reducing vibration. Further more the clutch reduces the dangerous torsion
movements to the crankshaft during the start-up procedure.
At start-up the propeller is able to free wheel and becomes engaged only when the RPM of the
engine reaches in excess of 1900-2100 RPM per minutes. The gear couple works in an oil bath
therefore check the level of the oil and change the oil after the firsts 5 hours of work. And every
200 hours thereafter. Use only high quality gear oil SAE-90 or SAE 80-120.
The level is up to the lower front plug.
14
TROUBLE SHOOTING
Whatever model you choose, the engine will only function if:
- good spark is produced
- and you have proper air/fuel mix.
Often, the majority of problems arise when one of the above conditions is lacking. Get organised
and follow a strict procedure in order to identify the problem. Finding the problem must be a
logical process. Below is a brief trouble-shooting guide.
1. THE ENGINE WON’T START!
Probable cause:
Remedy:
Ignition failure.
The fuel flow valve is closed or the filter
is blocked.
The fuel tank is empty.
You have not followed the start up
procedure correctly.
The spark plug is flooded as a result of
supplying too much fuel when starting up
the engine.
Turn the switch to ON.
Open the valve, clean or replace the filter and
check the fuel lines for any leaks.
Re-fuel.
Repeat the process, following the instructions
carefully.
Remove and clean the spark plugs, run the
engine using the electric starter with the
throttle wide open for 5 seconds then replace
the spark plugs.
Dry the spark plug carefully.
The spark plug is damp on account of
excessive condensation.
The spark plug electrodes are further apart
than the recommended distance.
The electrodes are worn away.
The spark plug is dirty (oil and lead
deposits on the insulator).
The high tension lead is badly connected,
loose or damaged.
The engine turns too slowly when
starting-up on account of the electric
starter motor battery is low or defective.
The float valve is dirty or blocked.
Fuel spray nozzles are blocked.
There is water in the carburetor
(carburetor with float) or at the bottom of
the fuel tank.
Insufficient compression or damaged
engine.
Adjust electrodes so that the distance is 0.7mm
as indicated in the technical specifications.
Replace the spark plugs.
Clean the spark plug carefully using a metal
brush or replace, as necessary.
Connect the cable or check it is in good
condition, as appropriate.
Re-charge or replace the starting battery.
Clean or replace the float valve.
Clean the spray nozzles.
Change the oil and clean the carburetor, the
carburetor piping, filter and fuel tank.
Contact your local dealer.
15
2. PROBLEM: INCONSISTENT IDLE
Probable cause
The starter motor is switched on.
Badly adjusted carburetor/s.
The float valve is dirty, blocked or worn.
The inlet manifold is leaking.
Remedy:
Switch off the starter motor.
Adjust the carburetor/s.
Clean or replace the float valve.
Tighten the joint, replace any faulty parts.
3. PROBLEM: THE ENGINE IS RUNNING IRREGULARLY
Probable cause:
Defective spark plug.
Defective or damp high tension lead.
Faulty spark coil.
Fuel or air filters are obstructed.
Remedy:
Check the spark plug, clean it inside
out, adjust the distance between
electrodes. Replace if necessary.
Dry any damp cables or replace
damaged cable if it cannot be repaired.
Replace with an identical coil; do
change model.
Clean or replace the filters.
and
the
the
not
4. THE ENGINE HAS STOPPED
Probable cause:
Remedy:
The fuel tank is dry.
Re-fuel.
The fuel lines are blocked.
Clean the fuel filter.
The ignition is cut off after contact has been
made.
The engine will not start up again.
Check the wiring system and the stop
switch.
See point 1. Alternatively, the spark coil is
completely unusable. Replace.
16
5. PROBLEM: THE PERFORMANCE OF THE ENGINE
IS UNSATISFACTORY
Probable cause:
The recommended fuel mix has not been
used.
Insufficient fuel feed.
The air filter is dirty.
The air inlet is leaking.
Carburetor diaphragm (for engines fitted with
diaphragm carburetors).
No ignition.
Bad carburation.
Remedy:
Check the fuel mix.
Check the fuel feed and clean the fuel filter
if necessary.
Clean or replace the air filter.
Tighten all joints, check the carburetor joints
for air-tightness.
Replace the diaphragm.
The ignition system is faulty. Check the
ignition circuit. Adjust the ignition.
Check the carburetor adjustments.
17
Cyl1
Cyl 2
Cyl1
Cyl 2
Ground to regola tor
3
4
Coil 2
Grownd to the engine
Coil 1
1
1 2
C HARGE O N
+
2
Gen
Pic k-up
CDI 1
_
1
2
3
4
5
6
CDI 2
CDI 1 ON
CDI 2 ON
The white connector must be connected as shown in the drawing:
N°2 with N°3
N°5 with 6 and 1
Connect one ground cable to the engine
One ground cable to the regulator
One ground cable to the battery
Connect the "+" wire directly to the battery
Engine must run with the switch closed - Regolator must charge with the switch closed
WARNING
The engine is supplied with a preassembled wiring harness.
Ensure the battery cables are securely soldered to the terminals.
Bad connections will lead to wire over-heating and irreversible damage to the battery. If you
wish to be able to disconnect the battery, cable connectors of the right size may be used.
Remember that the battery generates 700amps if a short circuit occurs.
When connecting the battery and start-up motor, always ensure the gauge of the cables is
adequate; if the cables used are too small, this could lead to a drop in voltage which will make it
more difficult to start the motor and cause the cables to over-heat and melt.
18
MZ202 ENGINE
MAINTENANCE
SCHEDULE
Checks and work to be carried
out (hours)
1 9 12 25 50 75 100 125 150 175 200 225 250 275
1) Tighten the cylinder head
X
X
X
X
X
X
screws
2) Check the starter cable
X
3) Check the starter ring gear
X
X
X
X
X
X
4) Check the spark plug
X
5) Replace the spark plug
X X X X X X X X X X X
6) Check and clean the spark
X
plug cap
7) Check the ignition alternator
X
X
X
8) Check gearbox oil
X
X
X
X
X
X X
9) Replace exhaust springs
X
X
X
10) Grease control cables
X X X X X X X X X X X
11) Check balance and tracking
X X X X X X X X X X X
of propeller
12) Replace propeller fastening
X
X
screws
13) Clean air and fuel filters,
X X X X X X X X X X X
lubricate air filter
14) Replace fuel filter (do not use
X
X
paper filters)
15) Check the carburetor, adjust X
X
X
X
X
X
X
idle setting and cable tension
16) Clean carburetor and check
X
X
X
X
X
the condition of the idle pipe
17) Replace float pointer
X
18) Clean and check the fuel
X
X
X
pump
X
X
X
X
X
19) Check the cylinder head and
piston (remove encrustation if
thicker than 0.5 mm), replace
gaskets.
30) Check wear and freeplay of
X
X
X
X
X
components
THE ENGINE SHOULD BE GIVEN A COMPLETE OVERHAUL EVERY 500 HOURS
(CONTACT YOUR DISTRIBUTOR)
19
21
N°
1.
2.
3.
4.
5.
6.
7.
8.
Code
202001
202002
202003
340004
341005
341006
202007
202008
Q.ty
1
1
1
2
2
4
1
1
Description
CRANKCASE
CRANKSHAFT
BEARING PTO SIDE
PIN ROLLER CAGE
PISTON PIN
PIN RETAINER
BEARING ROTOR SIDE
FAN COMPLETE WITH ROTOR
AND GEAR
9.
10.
3410010 2
REED VALVE
11.
12.
3410011 2
2020012 8
13.
14.
15.
16.
3410013 2
3410014 2
3410015 2
202004
17.
3410017 8
18.
19.
20.
21.
22.
3410018
3410019
3410020
3410021
3410022
12
8
8
2
1
23.
24.
25.
26.
27.
28.
3410023
3410024
3410025
3410026
3410027
3410028
1
1
2
4
4
4
RUBBER INTAKE MANIFOLD
25x75x15x8 CYLINDER SCREW
BOLTS
CYLINDER
CYLINDER HEAD GASKET
CYLINDER HEAD
FUEL DISTRIB + COIL
SUPPORT
TCEI 6x35 UNI 5931 DIN912
SCREW
D.6 WASHER
M8 NUT
D.8 WASHER
CYLINDER GASKET
PRESSURE TUBE
CONNECTION
6x8x1 ALUMINIUM GASKET
25x52x7 GAS RING
PISTON
PISTON RINGS
TCEI 6x20 UNI 5931 SCREW
TCEI 6x45 UNI 5931 SCREW
N°
29
30
31
32
33
34
35
36
Code
3410029
3410030
3410031
3410032
3410033
3410034
2020035
3410036
Q.ty
2
18
1
2
1
4
1
2
37.
38.
3410037 1
3410038 4
39.
40.
3410039 3
3410040 2
EXHAUST MANIFOLD
8x25 SCREW FOR EXHAUST
MANIFOLD + SPRING
CONNECTION
EXHAUST SPRING
SCHNOR D.8 WASHER
41
42
43
44
2020041
2020042
2020043
2020044
ALLUMINIUM AIR BOX
PLASTIC FAN BOX COVER
AIR GUIDE
EXAUST MANIFOLD
45
2020045 1
SILENCER
46
47
48
49
50
2020046
2020047
2020048
2020050
2020051
DOUBLE COIL
WIRING CABLE
CDI BOX
GENERATOR SUPPORT
180W GENERATOR
51
2020052 1
1
1
1
1
2
1
2
1
1
Description
TCEI 6x50 UNI5931 SCREW
SCHNOR D.6 WASHER
25x47x7 GAS RING
INTAKE GASKET
FLYWHEEL KEY
TCEI 6x20 UNI 6912 SCREW
ELECTRIC STARTER
EXHAUST GASKET
POWER REGOLATOR
Preliminary spare parts list
22
Daily checks
(To be carried out as part of the preliminary flight inspection at the
beginning of each flying day)
Check the electrical contact is on “stop”.
Remove any water contained in the fuel tank.
Check the inlet manifold and the carburetor are securely fitted. Warning: a cracked
inlet manifold will cause piston failure.
Check the carburetor float chamber (water, impurities).
Check the conditions, cleanliness and attachment of the air filter.
Check the cylinder head and the cylinder housing for leakage’s.
Check that the attaching components for the ignition coil and electrical
connections are secure.
Check the electric starter motor is secure (cracks, screws and connections ...).
Check the engine is attached securely to the frame (silent block mountings and screws).
Check the reduction and attaching bolts of the starter motor
Check the fuel lines and all related hoses.
Turn the engine manually and listen for any unusual noises (to be carried out
with the electrical contact switched off)
Check the bearings of the reduction by rotating the propeller by hand (to be carried
out with the electrical contact switched off)
Inspection to be carried out prior to flying (Before every flight)
Check the ignition switch for on/ off
Check the fuel level
Check that the spark plug caps are secure
Check that there are no screws, nuts or other components missing from the
engine and gear box.
Check the propeller (repair or replace if cracked or chipped)
Check the propeller fastening screws
Check that the choke and contact block controls are locked well into place.
Check the exhaust head (cracks, bolts, springs, brake cables...)
Switch the engine on after having checked that there is nobody in the vicinity
Check the idle contact
Check the dual engine ignitions, check each individually
Check the instruments while the engine is warming up
23
Engine repairs logbook
Date
Report of the repairs carried out
24
Compact Radial Engines
Inc.
#3-8473 124th Street
Surrey, B.C.
Canada. V3W-9G4
Phone: (604)590-2950
Fax: (604)590-8814
FRANCE and Benelux:
ULM Tecnology SARL
Aerodrome de Valenciennes
F - 59 121 Prouvy
Phone (0)327 45 53 53
http://www.ulmtechnologie.com
www.compactradialengines.co
m
03-19-02
25
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