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Valach Motor VM 140 B2-FS 140cc Petrol/Gas Engine (Global Warehouse)

  • Status : In StockSKU:VM140B2
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    • Product Details
    • Manual
    • Video
    • Spare Parts

    The Valach Motors VM 140 B2-FS has the same well proven Nickel-Silicon plated cylinders and the cylinder heads as the VM 120 B2-4T on a new CNC milled crankcase. The longer stroke of the crankshaft taken from the VM 170 B2-4T increases the displacement to 140cc.

    Price is only for the engine only. If you need silencer/exhaust, please select the matched one

    Photo reference from: German partner Toni-Clark.com (customers from Europe please contact them)

    For Manual and dimension info, please click "Manual" button.

    • • Nickel-Silicon plated cylinder surfaces
    • • CNC milled crankcase
    • • Completely encapsulated valve train
    • • Sensational smooth running and high torque
    • • Spontaneous throttle response and smooth midrange transition
    • • Extremely low vibration throughout the RPM range because of the four stroke principle
    • • Honda valves and valve seats
    • • Walbro carburetor
    • • Valach microprocessor controlled ignition with auto advance and retard
    • • An ignition integrated voltage converter allows the use of two LiPo cells
    • • VM-engines are now being produced with state of the art machines and methods
    • • Rapid spares delivery and repair service from Australia by Teamaustars
    Displacement: 140 cc
    Bore: 47 mm
    Stroke: 40 mm
    Width: 330 mm
    Length from engine mount to prop hub: 167.5 mm
    with prop washer and prop bolts
    4,005 g
    complete with ignition,
    prop washer and prop bolts
    4,183 g
    Ignition voltage range: 4.8 - 9 V
    Idle RPM: 800 rpm
    Max RPM: 6,200 rpm

    Fiala Prop 2-blade:

    Static thrust: 
         with Fiala 32x12"
         with Fiala 34x12"

    static RPM range:

    5,260 1/min
    5,100 1/min
    4,650 1/min
    4,550 1/min

    24.0 kp
    24.5 kp


    Like on the VM 120 B2-4T, the valve train of the new VM 140 B2-FS is fully encapsulated, improving rocker arm lubrication and the valve train runs quieter. The crankcase is manufactured from solid aluminum.

    Due to being a four stroke, the low vibration is nothing but sensational, and torque is really high. The response to the throttle being opened is so smooth without the slightest attempt to surge, making the Valach VM 140 B2-FS absolutely ideal for your big aerobatic model.

    Being a four stroke with a large capacity, it produces a very realistic full-size aircraft sound. With a relatively small silencer the sound level is very low, rather like a small saloon car. The silencers and headers for the VM 120 B2-4T can also be used for the VM 140 B2-FS.

    The Valach VM 140 B2-FS is a four stroke OHV engine running on petrol/oil mixture. We have tried many oils and recommend Valvoline SynPower 2T oil. Our BEL-RAY H1R, although excellent for two strokes, is not ideal for four strokes, as it burns very well without deposit, therefore not much gets past the piston. With Valvoline Synpower 2T a lot more oil gets through to the crankcase. In Germany we recommend Aral Ultimate 102, as the smell is not so penetrating, it can be stored without deteriorating and it does not contain ethanol! If in your country petrol does not contain any ethanol, you can use any brand you like.

    The fuel consumption is only approximately 50% compared to that of a two-stroke engine with the same displacement.

    Valves and their seats are manufactured by Honda, ensuring a very high quality. The totally enclosed valve train reduces sound, as well as ensuring the rocker arms are well lubricated.

    The processor controlled ignition allows easy starting and a exceptionally smooth running in all throttle settings.

    The Valach engines VM 140 B2-FS looks just like an original aero engine, only smaller, it runs smoothly like an original aero engine and above all it sounds like an original aero engine. The legendary perfectionist Henry Royce of Rolls Royce always insisted that an engineering construction to be right must look right. I defy anyone to tell me the Valach Twin does not look right.

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