O.S. engine max-140rx Owner'S Instruction Manual Download

Page: 13 / 13

23.0cc / 1.404cu.in.
32.0mm / 1.260in.
28.6mm / 1.126in.
1.800-10.000r.p.m.
3.5ps / 3.55hp / 9.000r.p.m.
830g / 29.3oz.

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THREE VIEW DRAWING

Dimensions(mm)

SPECIFICATIONS

Displacement
Bore
Stroke
Practical R.P.M.
Power output
Weight

OUT

PD-06

140

MADE IN JAPAN

4- 5.1

2-M4X0.7

UNF 5/16-24

48.4

93.9

26
44

M4X0.7

33.6

24.5

MEMO

60090850 061102

LLE

D Q

UALITY

PRECISION & PE

RFOR

TAB

LISHIN

G THE STANDARDS OF EX

CEL

TEL. (06) 6702-0225

FAX. (06) 6704-2722

6-15 3-Chome Imagawa Higashisumiyoshi-ku
Osaka 546-0003, Japan

URL : http://www.os-engines.co.jp

Summary of Contents for max-140rx

Page 1: ...sary It is suggested that any instructions supplied with the aircraft radio control equipment etc are accessible for checking at the same time 1 2 4 5 6 7 8 8 9 9 10 11 13 13 14 15 16 16 17 17 18 19 20 21 22 23 24 CONTENTS SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O S ENGINE INTRODUCTION BASIC ENGINE PARTS INSTALLATION FUEL TANK PIPING GLOWPLUG FUEL PROPELLERS TUNED SILENCER CARBURETOR CONTROLS ...

Page 2: ...r engine in an enclosed space Model engines like automobile engines exhaust deadly carbon monoxide Run your engine only in an open area Model engines generate considerable heat Do not touch any part of your engine until it has cooled Contact with the muffler silencer cylinder head or exhaust header pipe in particular may result in a serious burn 3 NOTES This engine was designed for model aircraft ...

Page 3: ...40RX has been designed expressly for FAI aerobatic competition under the latest F3A regulations which permit two stroke engines to have a much larger displacement than the 10cc limit imposed hitherto The 140RX continues the long established O S MAX contest engine tradition of unsurpassed quality of construction durability reliability compactness high specific output and high power to weight ratio ...

Page 4: ...ain on the exhaust header pipe and in extreme cases the header pipe may be damaged It is advisable therefore to insert some resilient material in the mountings for the exhaust system also Installation of cowling etc When a soft mount is used the engine may vibrate more than expected Make sure that the engine and spinner do not touch the fuselage or cowling otherwise overheating additional noises a...

Page 5: ...he needle However plug life can be extended and engine performance maintained by careful use i e 9 Apart from when actually burned out a plug may need to be replaced because it no longer delivers its best performance such as when When to replace the glowplug Filament surface has roughened and turned white Filament coil has become distorted Foreign matter has adhered to filament or plug body has co...

Page 6: ...embly as follows Fit the propeller to the engine shaft followed by the retaining washer and prop nut Tighten the nut with the 14mm wrench Finally fit the locknut and tighten firmly with the 12mm wrench making sure that it locks into the propeller retaining nut 1 2 IMPORTANT With any engine regardless of the type of propeller attachment used make a habit of checking prop tightness before starting t...

Page 7: ...d 200 with high quality propellers Therefore it may be necessary to readjust the header pipe length when a new propeller is fitted Be sure to check the r p m in addition to the balance and pitch of the propeller before using it for flight 13 If the pipe length is not set properly the engine will not only fail to develop its full performance but could also be damaged through overheating If you wish...

Page 8: ...otherwise there is a danger of it becoming overheated and damaged 6 15 RUNNING IN Breaking in For long life and high performance this engine needs to be properly run in or broken in The following settings apply when using a fuel containing not less than 15 lubricant and not more than 10 nitromethane Needle valve setting for starting 2 1 Open the needle valve 1 turns from the fully closed position ...

Page 9: ... turning the Throttle Stop Screw clockwise a few degrees to raise the idling speed a little 17 Note If however the engine idles unevenly and smokes a good deal when the throttle is re opened before picking up speed it is probable that the idling mixture is too rich In this case it will be necessary to turn the Mixture Control Screw clockwise about 5 degrees Alternatively if the Mixture Control Scr...

Page 10: ...cap provided to the nipples after draining out the methanol Note Kerosene will cause swelling and rapid deterioration of the fuel tubing Do not therefore use kerosene for cleaning this engine At the end of each operating session drain out any fuel that may remain in the fuel tank Next energize the glowplug and try to restart the engine to burn off any fuel that may remain inside the engine Re peat...

Page 11: ...29406000 29403200 29403400 29404000 No Description Code No 1 2 3 4 5 6 7 8 9 10 11 11 1 12 13 14 15 16 17 18 18 1 18 2 18 3 18 4 18 5 18 6 18 7 18 8 18 9 19 72102100 72102110 72102120 72102180 Exhaust Adaptor O Ring Exhaust Adaptor Exhaust Header Pipe Exhaust Header Pipe Assembly Needle Glow Plug A5 Screw Set Fuel Outlet Universal Nipple S3 5 Ratchet Spring Needle Valve Holder Assembly Set Screw O...

Page 12: ...LUG GRIP LOCK WASHER 10Sets MIXTURE CONTROL CARBURETOR 70B EXHAUST HEADER PIPE T 6010 TUNED SILENCER L 23 23 0cc 1 404cu in 32 0mm 1 260in 28 6mm 1 126in 1 800 10 000r p m 3 5ps 3 55hp 9 000r p m 830g 29 3oz THREE VIEW DRAWING Dimensions mm SPECIFICATIONS Displacement Bore Stroke Practical R P M Power output Weight IN OUT PD 06 140 MADE IN JAPAN 25 58 70 4 5 1 27 78 49 2 M4X0 7 UNF 5 16 24 48 4 93...

Page 13: ...served Printed in Japan 60090850 061102 U N E Q U A LLED QUALITY PRECISION PERFOR M A N C E E S T A BLISHING THE STANDARDS OF EXCELLE N C E TEL 06 6702 0225 FAX 06 6704 2722 6 15 3 Chome Imagawa Higashisumiyoshi ku Osaka 546 0003 Japan URL http www os engines co jp ...

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