Table of Contents
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It is of vital importance, before attempting to
operate your engine, to read the general
'SAFETY INSTRUCTIONS AND WARNINGS'
section on pages 2-5 of this booklet and to strictly
adhere to the advice contained therein.
Also, please study the entire contents of this
instruction manual, so as to familiarize yourself
with the controls and other features of the
engine.
Keep these instructions in a safe place so that
you may readily refer to them whenever
necessary.
It is suggested that any instructions supplied
with the vehicle, radio control equipment, etc.,
are accessible for checking at the same time.
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Table of Contents
Related Manuals for O.S. engine MAX-12TR Series
Summary of Contents for O.S. engine MAX-12TR Series
- Page 1 It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' section on pages 2-5 of this booklet and to strictly adhere to the advice contained therein. Also, please study the entire contents of this instruction manual, so as to familiarize yourself with the controls and other features of the engine.
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Page 2: Table Of Contents
CONTENTS SAFETY INSTRUCTIONS AND IF THE ENGINE FAILS TO START WARNINGS ABOUT YOUR O.S. ENGINE FINAL ADJUSTMENT INTRODUCTION, BASIC ENGINE PARTS CARBURETTOR CLEANLINESS INSTALLATION CARE AND MAINTENANCE AIR CLEANER TYPE 103 O.S. GENUINE PARTS & GLOWPLUG ACCESSORIES TOOLS, ACCESSORIES, etc. ENGINES EXPLODED VIEW &... -
Page 3: Safety Instructions And Warnings About Your O.s. Engine
SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE Remember that your engine is not a "toy", but a highly efficient internal- combustion machine whose power is capable of harming you, or others, if it is misused. As owner, you, alone, are responsible for the safe operation of your engine, so act with discretion and care at all times. - Page 4 WARNINGS • • Model engine fuel is poi- Never operate your engine in an en- closed space. Model engines, like sonous. Do not allow it to automobile engines, exhaust deadly come into contact with the eyes or mouth. Always carbon-monoxide. Run your engine store it in a clearly marked only in an open area.
- Page 5 NOTES • This engine is intended for model cars. • The wearing of safety glasses is also Do not attempt to use it for any other strongly recommended. purpose. • Take care that the glowplug clip or • Mount the engine in your model battery leads do not come into contact securely, following the manufacturers' recommendations, using appropriate...
- Page 6 NOTES • To stop the engine, fully retard the throttle stick and trim lever on the trans-mitter, or, in an emergency, cut off the fuel supply by pinching the fuel delivery line from the tank. • Warning! Immediately after a glowplug- ignition engine has been run and is still warm, conditions sometimes exist whereby it is just possible for the engine...
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Page 7: Introduction, Basic Engine Parts
1/10 class R/C racing cars. Heatsink Head There are two verions, the one with 10M carburettor and the other with 10J carburettor. The MAX-12TR has a Carburettor conventional crankshaft, while the MAX- 12TR(P) employs a special crankshaft Exhaust with integral pilot shaft. -
Page 8: Installation 7
Fit the exhaust seal ring supplied. ENGINE INSTALLATION Make sure that the vehicle's engine mounting INSTALLATION OF THE CARBURETTOR surfaces are level and in the same plane. Poor As delivered, the engine has its carburettor installation may cause distortion of the lightly fit into the intake boss. -
Page 9: Air Cleaner Type 103
INSTALLING THE FILTER ELEMENT AIR CLEANER TYPE 103 • The element is already It has a single filter element and is intended impregnated with primarily for circuit racing. The lower height special filter oil. As this oil of the Super Air-Cleaner 103 also facilitates is very sticky, take care, easier installation in cars where available when handling it, to... -
Page 10: Glowplug
Glowplug life GLOWPLUG Particularly in the case of very high performance Since the compatibility of glowplug and fuel may have engines, glowplugs must be regarded as expendable a marked effect on performance and reliability, it may items. be worthwhile to choose the R/C type plug found However, plug life can be extended and engine most suitable after tests.Recommended O.S. -
Page 11: Tools, Accessories, Etc. 10
Reminder! TOOLS, ACCESSORIES, etc. Model engine fuel is poisonous. Do not The following items are necessary for operating the allow it to come into contact with the eyes or engine. mouth. Always store it in a clearly marked FUEL container and out of the reach of children. Use only top quality methanol-based model engine Model engine fuel is also highly flammable. -
Page 12: Carburettor Controls
LONG SOCKET WRENCH CARBURETTOR CONTROLS ( 10J ) Recommended for easy removal Three adjustable controls are provided on this and replacement of the angled carburettor. and recessed glowplug, the The Needle-Valve: • O.S.Long Socket Wrench For adjusting the mixture strength when the throttle incorporates a special grip. -
Page 13: Pressurized Fuel System
CARBURETTOR CONTROLS ( 10M ) PRESSURIZED FUEL SYSTEM • The somewhat violent changes of vehicle attitude Three adjustable controls are provided on this that occur in off-road running, combined with the carburettor. fact that, in buggy type cars, the fuel tank is often The Needle-Valve: •... -
Page 14: Starting The Engine & Running-In('Breaking-In) 13
STARTING THE ENGINE & RUNNING-IN ('Breaking-in') The following procedure is suitable for these engines In case of the 10M caburettor approx 1mm • when the O.S. T-1030 tuned silencer and a fuel Set the throttle-stop screw so containing up to 30% nitromethane are used. that the minimum throttle •... - Page 15 • When the engine starts, first allow it to operate in short The position of the needle-valve when starting the engine. runs on its very rich starting settings, with the glowplug Needle battery still connected and with its driving wheels clear of the ground.
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Page 16: If The Engine Fails To Start
FINAL ADJUSTMENT IF THE ENGINE FAILS TO START • Check the following: Run the vehicle (with throttle fully open) over the longest available straight course, in order to observe • Glowplug battery discharged or glowplug defunct. the model's speed. Next return the car to the starting •... - Page 17 • • In this case, turn the Mixture Control Valve With the optimum mixture control position, light clockwise 45˚. If, on the other hand, the engine smoke is visible during high speed running,and the tends to speed up momentarily and then cut out engine revolutions increase smoothly during abruptly when the throttle is opened,the idling acceleration.
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Page 18: Carburettor Cleanliness
CARBURETTOR CLEANLINESS The correct functioning of the carburettor depends on its small fuel orifices remaining clear. BALL LINK AND SLIDE VALVE EXTENSION In case of the 10J caburettor (In case of the 10J caburettor) First rotate the Mixture Control It is seldom necessary to separate the slide-valve Valve until its slotted head is extension from the slide-valve itself. -
Page 19: Care And Maintenance
Then, inject some after-run oil into the engine, and CARE AND MAINTENANCE rotate the engine with an electric starter for 4 to 5 The minute particles of foreign matter, that are seconds to distribute the oil to all the working present in any fuel may, by accumulating and parts. -
Page 20: Genuine Parts & Accessories
O.S. GENUINE PARTS & ACCESSORIES RACING ENGINE PARTS 12TR Exhaust Header Pipes T-1020 Tuned Silencer O.S. Glow Plug ( 72103020 ) For Super10 Class Header Pipe Spring ( 72106160 ) ( 72106172 ) T-1030 Tuned Silencer ( 72103030 ) For Pure10 Class No.8 ( 71608001 ) Header Pipe Spring... - Page 21 12TR EXPLODED VIEW C.M2.6x7 Type of screw C Cap Screw M Oval Fillister-Head Screw F Flat Head Screw N Round Head Screw S Set Screw...
- Page 22 12TR ENGINE PARTS LIST Code No. Description 2 1454 600 Heatsink Head Assembly 2 1454 620 Outer Head 2 1454 610 Inna Head 2 1453 000 Cylinder & Piston Assembly 2 1256 000 Piston Pin 2 3817 000 Piston Pin Retainer(2pcs.) 2 1455 000 Connecting Rod 2 1483 000...
- Page 23 12TR(P) EXPLODED VIEW C.M2.6x12 C.M2.6x7 Type of screw C Cap Screw M Oval Fillister-Head Screw F Flat Head Screw N Round Head Screw S Set Screw...
- Page 24 12TR(P) ENGINE PARTS LIST Description Code No. 2 1454 600 Heatsink Head Assembly 2 1454 620 Outer Head 2 1454 610 Inna Head 2 1453 000 Cylinder & Piston Assembly 2 1256 000 Piston Pin 2 3817 000 Piston Pin Retainer(2pcs.) 2 1455 000 Connecting Rod Carburettor Complete (Type 10J)
- Page 25 10J CARBURETOR EXPLODED VIEW & PARTS LIST Code No. Description 2 1285 600 Mixture Control Valve Assembly 4 6066 319 "O" Ring(L) (2pcs.) 2 2781 800 "O" Ring(S) (2pcs.) 2 1285 901 Needle Valve Assembly 2 7881 820 "O" Ring (2pcs.) 2 1881 950 No.14 Universal Nipple Assembly 2 3818 500...
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Page 26: Carburettor Exploded View & Parts List
10M CARBURETTOR EXPLODED VIEW & PARTS LIST Code No. Description 2 1285 901 Needle Valve Assembly 2 7881 820 "O" Ring (2pcs.) 2 1881 950 No.14 Universal Nipple Assembly 2 2681 310 Throttle Stop Screw 2 1484 100 Carburettor Body 2 2481 506 Rotor Spring 2 1484 200... -
Page 27: Three View Drawing 26
SPECIFICATIONS 2.11 cc ( 0.129 cu.in. ) Displacement 14.0mm (0 .551 in. ) Bore 13.7mm ( 0.539 in. ) Stroke 4,000 36,000 r.p.m. Practical R.P.M. 1.1 bhp / 30,000 r.p.m. Power output 216.5g(7.5oz.) Weight M5X0.8 17.7 40.8 14.1 MAX-12TR W/10J... - Page 28 12TR(P) THREE VIEW DRAWING Dimensions(mm) 4- 3.3 SPECIFICATIONS 2.11 cc ( 0.129 cu.in. ) Displacement 14.0mm (0 .551 in. ) Bore 13.7mm ( 0.539 in. ) Stroke 4,000 36,000 r.p.m. Practical R.P.M. 1.1 bhp / 30,000 r.p.m. Power output 210g(7.27oz.) Weight 1/4-28UNF 17.7...
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Page 29: Memo
MEMO... - Page 30 6-15 3-Chome Imagawa Higashisumiyoshi-ku Osaka 546-0003, Japan TEL. (06) 6702-0225 FAX. (06) 6704-2722 URL : http://www.os-engines.co.jp Copyright 2001 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan. 100100...