Robin America EY44-2 Especificações

4-2 CRANKCASE The crankcase is made of aluminum die-cast and separable on driving shaft side with main bearing cover assembled. Provided on

4-10 GOVERNOR The centrifugal flyweight type governor assures constant-speed operation at selected speed, irrespective of load fluctuatio

5. INSTALLATION Since the installation method affects the service life, ease of maintenance, frequency of check and reapir, and opera

5-6 WIRING a JIS CB104 female terminal -e JIS CA104 male terminal -@ JIS LA 104 or LA1 08 plate terminal - """ The dotted parts are n

6. DISASSEMBLY and REASSEMBLY 6-1 PREPARATIONS and SUGGESTIONS 1) When disassembling engine, carefully note mounting positions and methods of

Flywheel Puller I Bolt 209 9901 0 07 001 65085 00 (Y790-350) Valve Spring Compressor 209 9901 1 07 (Y790-282) I1 Valve Seat Cutter (45”) 1 (H640-11

6-3-6 STARTING PULLEY and FLYWHEEL (magneto) Remove 3 pieces mounting bolts to detach starting pulley from flywheel. Remove flywheel from cr

In reassembly; 1) Clean carbon and gum deposits from the valves, seats, ports and valve stem holes. 2) Replace valves, if badly burned,

6) ADJUSTING TAPPET CLEARANCE (Fig. 6-3-5) * Rotate crankshaft until tappet is in its lowest position, hold valve down and insert feeler

In reassembly; 1) When reassembling main bearing cover, assemble governor lever shaft and governor arm before reinstalling them into

ROBIN AMERICA, INC. ROBIN TO WISCONSIN ROBIN ENGINE MODEL CROSS REFERENCE LIST ROBIN EY 08 EY15 EY 15V EY20 EY20V EY23 EY28 EY3 5 EY40 EY45V EY2 1 EY4

In reassembly; PISTON RING (See Fig. 6-3-10) 1) Use a ring expander tool to prevent ring from becoming distorted or broken when installing

5) Check if connecting rod moves smoothly after reassembly. Clamping torque of connecting rod cap is 250-300 kg-cm (1 8-21.7 ft-lbs). D (cran

7. MAGNETO 7-1 MAGNETO In Models EY33-2 and EY44-2, ignition spark is furnished by a magneto. The magneto is composed of the flywheel, igni

For timing adjustment, the following alighment marks are provided: D type: D mark at lower left crankcase (see Fig. 7-3-1) M mark and slit on

*CHECKING IGNITION SPARK Remove spark plug from cylinder head and place it on cylinder head fin after connecting ignition cable to it. Crank eng

8. GOVERNOR ADJUSTMENT EY33-2 and EY44-2 employ a centrifugal flyweight type governor which is mounted on a cam gear to automatically regulat

9. CARBURETOR 9-1 OPERATION and CONSTRUCTION (see Figs. 9-1-1 and 9-1-2) 9-1-1 FLOAT SYSTEM The float chamber is located just below carburetor

9-1-2 PILOT SYSTEM This pilot system feeds fuel to engine during idle and low speed operation. The fuel fed through main jet (MI) is

9-2-3 PILOT SYSTEM 1) Remove pilot jet (5) using a suitable tool while taking care not to damage it. 2) Detach pilot screw (6) and sp

10. RUN-IN OPERATION OF ENGINE after REASSEMBLY An overhauled engine must be carefully run-in to get proper engine surface conditions on newl

CONTENTS Section Title Page 1 . SPECIFICATIONS ... 1 2 . PERFORMANCE ...

1.1. TROUBLE SHOOTING For a satisfactory starting and running conditions of a gasoling engine, the following three requirements must be met:

11-1-3 ELECTRIC SYSTEM When there is no spark, the following must be checked. 3) 11-2 Disconnected cable leading to ignition coil, spark

8) Restricked exhaust gas outlet. Carbon deposit in combustion space. 9) Engine detonating due to low octane gasoline with heavy load at

12. CHECKS and CORRECTIONS After dismantling and cleaning the engine parts, check them, and if necessary, correct them, according to th

CORRECTION TABLE REMARKS USE I :ORRECTIOF METHOD STANDARD SIZE CORRECTION TOLERANCE " " - " " - - - - " - - - - ENGINE MODEL

ITEM ENGINE MODEL STANDARD SIZE 2ORRECTIOh METHOD TOOL TOLERANCE EY33-2 -0.008 0 Micro- meter Piston pin O.D. Replace EY44-2 -0.009 0 E Y 33-2 EY44-2

r ENGINE I STAl:;RD 1 , MODEL CORRECTION TOLERANCE :ORRECTIOF METHOD LIMIT USE 0.05 -1.5 TOOL ITEM Journal O.D. Free length Squarences Valve stem O.

ITEM HP/rpm MODEL EY 33-2 8.013.600 Max. Output EY44-2 lO.Ol3.600 EY33-2 613,600 Continuous Rated output EY 44-2 813,600 I I CORRECTION LIMIT REMARKS

ITEM REMARKS TOOL rpm MODEL EY33-2 Min. accelerating revolution 1,150 Tachometer EY44-2 ITEM Cylinder head clamp nuts Connecting rod bolts Magneto

13. MAINTENANCE and STORING The following maintenance jobs apply when the engine is operated correctly under normal conditions. The indic

7 . MAGNETO ... 18 7.1 . Magneto ... 18 7.2 . Breaker Point Adj

13-5 EVERY 500 - 600 HOURS (SEMIANUAL) CHECKS and MAINTENANCE I Checks and maintenance Reasons for requiring them 1 Remove cylinder head an

Industrial Engines

1. SPEC1 FICATIONS -1-

2. PERFORMANCE 2-1 MAXIMUM OUTPUT The maximum output of an engine is such standard power as developed by that engine, after its initial

3. FEATURES 1. A compact, lightweight, and highly durable 4cycle aircooled EYseries with high output, embodying ingenious design and adv

/- FLYWHEEL(COOLI~G FAN) I LIGHTING COIL \ CRANKCASE -4 -

SEl -5-