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  5. Owner's Instructions Manual

O.S. Engine MAX-15CV-R Series Owner's Instructions Manual

Summary of MAX-15CV-R 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 familia...

  • Page 2

    Contents safety instructions and warnings about your o.S. Engine introduction, basic engine parts installation air cleaner notes concerning the recoil starter glowplug tools, accessories, etc. Carburetor controls pressurized fuel system starting the engine & running-in('breaking-in) final adjustment...

  • 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. Install an effective silencer (muffler). Frequent close exposure to a noisy exhaust (e...

  • 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 line 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 install washer on glowplug and insert carefully into cylinder-head, making sure that it is not cross-threaded before tightening firmly. Basic engine parts the max-15cv-r is high-perfomance engines for 1/10 class r/c racing cars. There are two verions, the one with ...

  • 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

    Note: where spacers are supplied joined in pairs (see sketch) separate them as shown. Either face may be placed downwards. Avoid forcing the screws. Secure with locknuts. If the bottom of the recoil starter housing would otherwise touch the car chassis, fit the engine mount spacers (supplied) betwee...

  • Page 10: Air Cleaner Type 102S

    Always remove contaminated elements carefully, to ensure that dirt cannot enter the carburetor. Air cleaner type 102s installation of air cleaner carefully clean the carburetor, removing any old adhesive or sealant that may have been previously used on the outside of the air intake. • press the air ...

  • Page 11: •

    Position the air cleaner correctly, so that it does not foul the cylinder-head or obstruct the needle-valve. Installing the filter element the element is already impregnated with a special filter oil. As this oil is very sticky, take care, when handling it, to prevent dust or dirt from adhering to t...

  • Page 12: •

    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 13: Tools, Accessories, Etc.

    Tools, accessories, etc. The following items are necessary for operating the engine. Fuel use only top quality methanol-based model engine fuel.For consistent performance and long engine life, it is advisable to use fuel containing at least 18% lubricant. This engine is designed to run on both low a...

  • Page 14: Carburetor Controls (10C)

    Battery integrated glowplug heater commercialy available handy glowplug heater in which the glowplug battery and battery leads are integrated. Long socket wrench recommended for easy removal and replacement of the angled and recessed glowplug, the o.S.Long socket wrench incorporates a special grip. ...

  • Page 15: 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 16

    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 t...

  • Page 17: •

    30˚ when the engine starts, first allow it to operate in short runs on its 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 pro...

  • Page 18: •

    If the engine fails to start check the following: glowplug battery discharged or glowplug defunct. Fuel not reaching carburettor. 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-valv...

  • Page 19: •

    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 20: Carburetor Cleanliness

    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 21: 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 22: Racing Engine Parts

    Racing engine parts (71608001) (71605300) (71605100) (72103110) (72103120) (72103020) (72103310) (71530200) (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 tamiya tg10 for...

  • Page 23: 15Cv-R Exploded View

    15cv-r exploded view type of screw c … cap screw m … oval fillister-head screw f … flat head screw n … round head screw s … set screw c . M 2 . 6 x 1 2 c . M 2 . 6 x 7 not included in 15cv-r(s) ✽ t 9 0 1 2 3 4 5 6 7 8 9 0 - = q w e r 22.

  • Page 24: 15Cv-R Engine Parts List

    15cv-r engine parts list the specifications are subject to alteration for improvement without notice. 102 cleaner body 101,102 filter elements (6pcs.) super air cleaner 102 (w/3 filter elements) screw set glow plug no.8 gasket set crankshaft crankshaft ball bearing (rear) crankcase crankshaft ball b...

  • Page 25: 15Cv-Rx Exploded View

    15cv-rx exploded view type of screw c … cap screw m … oval fillister-head screw f … flat head screw n … round head screw s … set screw c . M 2 . 6 x 1 2 m . + m 2 . 6 x 7 u -1 u -2 m . + m 2 . 6 x 7 24 ✽ u 1 y 2 4 3 5 6 7 8 9 0 - = q w e r t.

  • Page 26: 15Cv-Rx Engine Parts List

    15cv-rx engine parts list the specifications are subject to alteration for improvement without notice. 102 cleaner body 101,102 filter elements (6pcs.) super air cleaner 102 (w/3 filter elements) [off -road] screw set glow plug no.8 gasket set crankshaft crankshaft ball bearing (rear) crankcase cran...

  • Page 27: 15Cv-R(P) Exploded View

    Type of screw c … cap screw m … oval fillister-head screw f … flat head screw n … round head screw s … set screw 15cv-r(p) exploded view c . M 2 . 6 x 1 2 c . M 2 . 6 x 7 26 ✽ 1 2 3 4 5 6 7 8 9 0 - q = w.

  • Page 28: 15Cv-R(P) Engine Parts List

    15cv-r(p) engine parts list the specifications are subject to alteration for improvement without notice. W q = - 0 9 8 7 6 5 4 3 2 1 72403120 72403210 21257000 21514010 21252020 21230020 72403200 71608001 21213000 21501030 22631020 21481700 21286000 21255000 23817000 21806000 21503020 21504600 102 c...

  • Page 29

    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. Carburetor rubber gasket ball link no.4 dust cover metering need...

  • Page 30

    The specifications are subject to alteration for improvement without notice. 10e-r carburetor exploded view & parts list 21481950 27881820 21481900 22681310 21481120 21283961 24881824 21283962 22481506 21481200 21283210 22681419 21481420 21481600 - 0 -1 0 9 8 7 6 5 4 3 2 1 7 -1 7 -2 0 -2 22615000 no...

  • Page 31: 15Cv-R Three View Drawing

    ■ displacement ■ bore ■ stroke ■ practical r.P.M. ■ power output ■ weight specifications 15cv-r three view drawing dimensions(mm) 39 25 12.8 83.9 71.1 41 70 15 25 27.5 m5x0.8 11 31.4 2.49 cc (0.152 cu.In.) 15.2mm (0.598 in.) 13.7mm (0.539 in.) 4,000 ~ 36,000 r.P.M. 1.2 bhp / 31,000 r.P.M. 195g(6.88o...

  • Page 32: 15Cv-Rx Three View Drawing

    ■ displacement ■ bore ■ stroke ■ practical r.P.M. ■ power output ■ weight specifications 15cv-rx three view drawing dimensions(mm) 2.49 cc (0.152 cu.In.) 15.2mm (0.598 in.) 13.7mm (0.539 in.) 4,000 ~ 36,000 r.P.M. 1.2 bhp / 31,000 r.P.M. 253g(8.924oz.) m5x0.8 40 88.8 41 33.8 25 27.5 71.1 20 91.1 31....

  • Page 33: 15Cv-R(P) Three View Drawing

    34.8 79.3 15 25 27.5 unf1/4-28 11 31.4 39 25 12.8 83.9 71.1 2.49 cc (0.152 cu.In.) 15.2mm (0.598 in.) 13.7mm (0.539 in.) 4,000 ~ 36,000 r.P.M. 1.2 bhp / 31,000 r.P.M. 193.2g(6.82oz.) 15cv-r(p) three view drawing dimensions(mm) ■ displacement ■ bore ■ stroke ■ practical r.P.M. ■ power output ■ weight...

  • Page 34

    C copyright 2001 by o.S.Engines mfg. Co., ltd. All rights reserved. Printed in japan. 120101 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...