O.S. Engine MAX-28XZ Instruction Manual

Summary of MAX-28XZ

  • 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: Warnings

    2 ! ! 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 som...

  • Page 3: Notes

    4 ! 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 exhaus...

  • Page 4

    6 piston cylinder liner crankshaft engine construction with this engine, the piston will feel tight at the top of its stroke (tdc) when the engine is cold. This is normal. The cylinder bore has a slight taper. The piston and cylinder are designed to achieve a perfect running clearance when they reac...

  • Page 5

    8 guarantee this engine is constructed from the very best materials available and to the very highest engineering standards, using the most advanced precision machinery. However, the extremely high stresses imposed by car racing operation under very severe conditions, as well as stresses which are e...

  • Page 6

    10 tools, accessories, etc.The following items are necessary for operating the engine. T-2060 wn tuned silencer assembly m2000 exhaust header pipe assembly t-2060sc wn tuned silencer complete set super air cleaner 203 assembly before starting optional extras glow plug t-type (turbo plug) p3 is suppl...

  • Page 7

    12 fuel filter glowplug igniter commercialy available handy glowplug heater in which the glowplug battery and battery leads are integrated. To installed in the fuel line between fuel tank and carburetor to prevent foreign matter from entering the carburetor. Fuel pump for filling the fuel tank, a si...

  • Page 8

    14 the needle-valve(adjusted at the factory): the mixture control valve: four adjustable controls are provided on this carburetor. For adjusting the mixture strength when the throttle is fully open. For changing the mixture strength at mid speed and acceleration. (do not rotate the screw more chan o...

  • Page 9

    16 install the exhaust seal ring supplied. Exhaust seal ring glowplug the engine is fit with one each of 0.1mm and 0.2mm cylinder-head gasket when it leaves the factory. Another 0.1mm head gasket is supplied with the engine. You may add it at initial running- in, when a glow plug tends to burn out d...

  • Page 10

    18 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 ...

  • Page 11

    20 the following procedure is suitable for this engine when the o.S. T-2060wn tuned si- lencer and a fuel containing up to 30% ni- tromethane are used. Fill the tank completely with fuel. Temporarily remove the glowplug to check that it glows bright red when energized. Glow plug igniter pliers eleme...

  • Page 12

    22 next, disconnect the glowplug battery and try running the car on the track. If the engine stalls, open the throttle fractionally, but try to keep the engine running as rich as possible: if it stops because of being excessively rich, close the needle-valve 30˚ and try again. Run the car on the tra...

  • Page 13

    24 final adjustment throttle stop screw needle valve metering needle open close close open needle valve metering needle more fuel less fuel more fuel less fuel run the vehicle (with throttle fully open) over the longest available straight course, in order to observe the model's speed. Next return th...

  • Page 14

    26 finally, beyond the nominal break-in period, a slight readjustment toward a leaner needle setting may be required to maintain maximum performance. Carburetor cleanliness the correct functioning of the carburetor depends on its small fuel orifices remaining clear. Realignment of metering needle an...

  • Page 15

    28 dirt and dust may lodge in marked places. 5.Finally, when cleaning the exterior of the engine, use methanol or a household cleaning agent. Do not use gasoline, kerosene, or any petroleum based chemical which can damage silicone fuel tubing. 29 checking the engine if the engine will not develop no...

  • Page 16

    30 symptom cause corrective action engine fails to fire. Fuel tank is empty. Fuel not reaching the engine. Fill the tank with fuel and repeat priming procedure. Glowplug element is burnt out. Glowplug battery discharged replace glowplug. Recharge or replace the battery. Clogged fuel filter air clean...

  • Page 17

    32 symptom cause corrective action symptom cause corrective action unstable idle unsuitable glowplug use suggested glowplug in the instructions. Unsuitable fuel do not use extremely high nitro or low oil content fuel. Extremely light flywheel add heavier flywheel. Silencer is disconnected or has pla...

  • Page 18

    34 1 2 3 5 4 6 7 8 9 10 11 12 14 13 c .M2.6x7 c .M2.6x18 15 c .M3x18 10-1 16 engine exploded view type of screw c… cap screw * 79871020 79871055 79871180 m2.6x7 m2.6x18 m3x18 cap screw sets (10pcs ./sets ) code no . Si ze pcs . Used in an engine cylinder head retaining screw (4pcs.) cover plate reta...

  • Page 19

    36 carburetor exploded view type of screw s...Set screw 1 3 5 4 6 7 8 s.M3x3 1-1 2 9-2 3-1 5-1 9 10 11 12 6-1 7-1 9-1 8-1 37 the specifications are subject to alteration for improvement without notice. Carburetor parts list 1 1-1 2 3 3-1 4 5 5-1 6 6-1 7 7-1 8 8-1 9 9-1 9-2 10 11 12 23781400 26381501...

  • Page 20

    38 (71641300) p3 (72106300) (71641400) p4 (72106135) (72106130) (72106090) (72106440) (72101272) (22826140) (72106130) (72106440) (22826140) (72106042) o.S. Genuine parts & accessories glowplug t-2060sc wn tuned silencer assembly exhaust seal ring (2pcs.) joint spring (3pcs.) m2000sc exhaust header ...

  • Page 21

    40 4.65cc (0.284cu.In.) 18.5mm (0.728in.) 17.3mm (0.681in.) 4,000-38,000 r.P.M. 3.31ps / 32,000 r.P.M. 375g (13.1oz.) 21 37 31.6 45 29.5 44 21.6 28.5 16 unf1/4-28 96 4- 3.3 45 ■ ■ ■ ■ ■ ■ displacement bore stroke practical r.P.M. Power output weight specifications three view drawing dimensions (mm) ...