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O.S. Engine MAX-12CV Owner's Instruction Manual

Manual is about: MAX-12CV; MAX-12CV-X Engines

Summary of MAX-12CV

  • 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 familia...

  • Page 2

    If the engine fails to start final adjustment carburettor cleanliness care and maintenance exploded view & engine parts list carburetor exploded view & parts list o.S. Genuine parts & accessories three view drawing contents safety instructions and warnings about your o.S. Engine introduction, basic ...

  • Page 3: Warnings

    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. If at some futu...

  • Page 4: Warnings

    Warnings model engine fuel is poi- sonous. Do not allow it to come into contact with the eyes or mouth. Always store it in a clearly marked container and out of the reach of children. Model engine fuel is also highly flammable. Keep it away from open flame, excessive heat, sources of sparks, or anyt...

  • Page 5: Notes

    This engine is intended for model cars. Do not attempt to use it for any other purpose. Mount the engine in your model securely, following the manufacturers' recommendations, using appropriate screws and locknuts. Fit an effective silencer (muffler). Frequent close exposure to a noisy exhaust (espec...

  • Page 6: Notes

    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 tube from the tank. • warning! Immediately after a glowplug- ignition engine has been run and is still warm, conditions sometimes e...

  • Page 7: Basic Engine Parts

    Installing the glowplug carburetor note: with this engine, the piston will feel tight at the top of its stroke when the engine is cold. This is normal. The piston and cylinder are designed to achieve a perfect running clearance when they reach their normal running temperatures. Fit washer to glowplu...

  • Page 8: Engine Installation

    Engine installation make sure that the vehicle's engine mounting surfaces are level and in the same plane. Poor installation may cause distortion of the crankcase, bearings, etc., resulting in erratic running and loss of performance. The recommended screws for securing the engine are 3mm or 4-40 ste...

  • Page 9: Air Cleaner Type 102

    ー8ー this is a heavy-duty wet type air cleaner that has been developed specifically for the o.S. Max-cv series model car engines. It contains specially impregnated filter elements which prevent highly damaging dust and dirt from being drawn into the engine through the carburetor, yet allow engine per...

  • Page 10

    Always remove contaminated elements carefully, to ensure that dirt cannot enter the carburettor. Position the air cleaner correctly, so that it does not foul the cylinder-head or obstruct the needle-valve. • air cleaner elements • • lower filter element upper filter element insert beneath flanges. R...

  • Page 11: Glowplug

    Glowplug life particularly in the case of very high performance engines, glowplugs must be regarded as expendable install a plug suitable for the engine. Use fuel containing a moderate percentage of nitromethane unless more is essential for racing events. Do not run the engine too lean and do not le...

  • Page 12: Tools, Accessories, Etc.

    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 ...

  • Page 13: Carburetor Controls (10C)

    Long socket wrench silicone tubing heatproof silicone tube of approx. 5mm o.D. And 2mm i.D. Is required for the connection between the fuel tank and engine. Fuel bottle or pump electric starter and starter battery use an electric starter with 12-volt battery for starting the max-12cv. Carburetor con...

  • Page 14: Carburetor Controls (10E-R)

    Carburetor controls (10e-r) the needle-valve: the mixture control screw: the throttle stop screw: three adjustable controls are provided on this carburetor. For adjusting the mixture strength when the throttle is fully open. For adjusting the mixture strength at part- throttle and idling speeds, to ...

  • Page 15: •

    Approx 1mm approx. 0.3-0.5mm the following procedure is suitable for these engines when the o.S. T-1020 tuned silencer and a fuel containing up to 30% nitromethane are used. Use the same fuel as is to be employed for all initial running and containing not less than 18% lubricant. Temporarily remove ...

  • Page 16: •

    30º when the engine starts, first allow it to operate in short runs at the very rich starting settings, with the glowplug battery still connected and with its driving wheels clear of the ground.The rich mixture will, under these conditions, provide adequate lubrication and cooling, indicated by prof...

  • Page 17: •

    If the engine fails to start check the following: glowplug battery discharged or glowplug defunct. Fuel not reaching carburetor. Engine flooded. Do not over-prime. (this could also cause hydraulic lock and damage the engine on application of the electric starter.) remove glowplug, close needle-valve...

  • Page 18: •

    In this case, turn the mixture control valve clockwise 45~90˚. If, on the other hand, the engine tends to speed up momentarily and then cut out abruptly when the throttle is opened,the idling mixture is too lean. Correct this by turning the mixture control valve counter-clockwise 45~90˚. Warning! No...

  • Page 19

    Ball link and slide valve extension it is seldom necessary to separate the slide-valve extension from the slide-valve itself. For cleaning, withdraw this complete sub-assembly from the carburetor body after removing the slide-valve guide screw. Then wash with methanol or glow-fuel. (note: take care ...

  • Page 20: Care and Maintenance

    4. Care and maintenance 1. 2. 3. The minute particles of foreign matter, that are present in any fuel may, by accumulating and partially obstructing fuel flow, cause engine performance to become erratic and unreliable. O.S. 'super-filters' (large and small) are available, as optional extras, to deal...

  • Page 21: Max-12Cv Exploded View

    Max-12cv exploded view type of screw c … cap screw m … oval fillister-head screw f … flat head screw n … round head screw s … set screw ✽ 1 2 3 4 5 6 7 8 9 0 - = q w e r t c . M 2 . 6 x 1 2 c . M 2 . 6 x 7 20

  • Page 22: Max-12Cv Engine Parts List

    Max-12cv engine parts list the specifications are subject to alteration for improvement without notice. E w q = - 0 9 8 7 6 5 4 3 2 1 7 2403 120 7 2403 210 2 1407 000 2 1214 000 2 1202 010 2 1230 000 7 2403 200 7 1605 300 2 1213 000 2 1401 000 2 2631 019 2 1408 000 2 0810 007 2 1481 700 2 1481 020 2...

  • Page 23: Max-12Cv-X Exploded View

    Max-12cv-x exploded view type of screw c … cap screw m … oval fillister-head screw f … flat head screw n … round head screw s … set screw ✽ 1 2 3 4 5 6 7 8 9 0 - = q w e r t c . M 2 . 6 x 1 2 m . M 2 . 6 x 7 y u u -1 u -2 m . M 2 . 6 x 7 22.

  • Page 24: Max-12Cv-X Engine Parts List

    Max-12cv-x engine parts list the specifications are subject to alteration for improvement without notice. E w q = - 0 9 8 7 6 5 4 3 2 1 7 2403 120 7 2403 210 2 1421 200 2 1214 000 2 1202 000 2 1230 000 7 2403 200 7 1605 300 2 1401 000 2 2631 019 2 1408 000 2 0810 007 2 1481 700 2 1481 020 2 1286 000...

  • Page 25

    The specifications are subject to alteration for improvement without notice. Type of screw c … cap screw m … oval fillister-head screw f … flat head screw n … round head screw s … set screw ✽ 10c carburetor exploded view & parts list no. Carburettor rubber gasket ball link no.4 dust cover metering n...

  • Page 26

    The specifications are subject to alteration for improvement without notice. 10e-r carburetor exploded view & parts list 2 1481 950 2 7881 820 2 1481 900 2 2681 310 2 1481 120 2 1283 961 2 4881 824 2 1283 962 2 2481 506 2 1481 200 2 1283 210 2 2681 419 2 1481 420 2 1481 600 - 0 -1 0 9 8 7 6 5 4 3 2 ...

  • Page 27: Racing Engine Parts

    ■ racing engine parts (71608001) (71605300) (71605100) ■ (72103110) (72103120) ■ (72103020) ■ (72103310) ■ (71530100) ■ (71521000) ■ (72403202) ■ (72403120) (72103130) (72103140) o.S. Genuine parts & accessories o.S. Glow plug exhaust header pipes for kyosho super10 for kyosho spider & hpi nitro for...

  • Page 28

    ■ displacement ■ bore ■ stroke ■ practical r.P.M. ■ power output ■ weight specifications 12cv,12cv-x three view drawing dimensions(mm) 2.11 cc(0.129cu.In.) 14.0 mm(0.551in.) 13.7 mm(0.539in.) 3,000 ~ 30,000 r.P.M. 0.56 bhp / 29,000 r.P.M. 211g(7.45oz.)12cv 269g(9.50oz.)12cv-x 190g(6.70oz)12cv hyper ...

  • Page 29: Memo

    Memo 28.

  • Page 30

    C copyright 2000 by o.S.Engines mfg. Co., ltd. All rights reserved. Printed in japan. 120104 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 u n eq ua ll ed qua lity precision & per for m an ce es ta blis hing t...