Description
The Lifan engine is designed for Soviet snowmobiles Lynx, Buran, Taiga. 4-stroke with manual and electric starter. It’s very easy to buy an engine for a Buran snowmobile at the best price in the online store! Please note that when ordering this product, you receive not just an engine, but a ready-made kit, which is already fully adapted for installation on domestic snowmobiles.
We also have the engine, but without changes, the price is cheaper. Therefore, if you do not need an adapted engine for snowmobiles, then look for this item in the category of Lifan engines with a manual starter or write to us!
Review of the 7 most reliable snowmobiles
SKI-DOO Freeride 165” 850 E-TEC SHOT
The model is long-tracked, and its name is fully justified. Movement is absolutely free, and the driver gets great pleasure. The two-stroke engine allows you to literally take off and confidently pick up speed. Experienced riders will appreciate the ability to customize the device as much as possible.
If we consider the Gornik objectively, then we can safely say that it is very close to the sports Renegade. They have similar platforms and suspensions. What especially stands out about the model is the track, which is capable of “breaking” when turning, while maintaining excellent traction with snow.
Cost: 1,673,000 rub.
- Incredible dynamics, characterized by appropriate “pickup”;
- High cross-country ability;
- Ability to customize;
- Increased sensitivity to control.
- Most buyers prefer four-strokes because... 2T motors are famous for their specific pickup.
Technical characteristics of the Lifan 2V78F-2A engine
- Engine type: four-stroke, gasoline;
- Gas distribution system: OHV (valve drive by rods, two valves);
- Power system: one carburetor, gravity fuel supply;
- Number of cylinders: two-cylinder, V-shaped;
- Displacement 640 cc;
- Bore x stroke: 78 x 67 mm;
- Maximum power at 3600±150 rpm: 15.5 kW 24.0 hp;
- Idle speed: 1700±150 rpm;
- Maximum torque: 42.0/2500 N.m./rpm.
- Fuel: AI-92;
- Cooling system: air-oil, forced;
- Lubrication system: oil supply by oil pump under pressure, splashing;
- Oil type: 10W/30 Oil volume 1.5 liters;
- Ignition system: transistor;
- Spark plug: TORCH F6TC, NGK BPR6ES;
- Carburetor: Chinese branded, modernized.
- Air filter: paper filter element.
- Starter: electric.
- Engine dimensions (LxWxH): 450x400x450 mm.
- Engine weight 46 kg.
- 12 month warranty
Connecting rods
The engine connecting rod serves to connect the piston to the crankshaft. The main component of the part is the head located on top, as well as the crank head located below. They are connected by a rod with an I-section.
The engine connecting rod includes an upper and lower head provided with holes. They are equipped with needle bearings. The radial clearance indicator ranges from 0.012 to 0.024 mm. The clearance is ensured by sorting by diameter (based on different sizes of bearing rollers, piston and crank pins). The group marking is indicated on the stem part under the head. The holes located under the connecting rod serve as lubrication for the bearings.
Which engine to put on a Buran
Description image
Let's consider the advantages of the Lifan engine for the Buran 2V78F-2A snowmobile, which the manufacturer of these motors relies on:
1. Fuel economy is 1.5-2 times thanks to the 4-stroke cycle.
- Let's do the math. In fact, personally tested fuel consumption on 2-stroke engines for Buran is 25-40 l/100 km, for Taiga (1 carb) from 30 to 45 l/100 km. And gasoline consumption depends on many conditions (wet or dry snow, ice or slush, whether you’re traveling alone or seven, driving speed). Then, according to unverified data from the manufacturer, it ranges from 15-22 l/100km to 22.5-34 l/100km. It is unknown whether all operating conditions are taken into account when declaring such a difference in fuel consumption. But we kind of believe it! In total, we get the following ruble result: virtually on average we save 400 rubles per 100 km of travel for a Buran snowmobile with a Lifan engine. Considering the fact that snowmobilers and hunters travel an average of 1,500 km per season, the savings on fuel will be 6,000 rubles. It's nice to save money, but let's move on!
Crankshaft device
The three-bearing crankshaft includes 46 journals on the right side and 23 journals on the left side, 8 jaws with a crank pin and 49 middle shafts, the connection of which is ensured by press fits. The mechanism is supported by three ball bearings, which are mounted on the middle shaft and journal journals. The rings, located in the grooves of the races on the outside of the bearings and labyrinth-type seals, are designed to equalize the loads placed on the crankshaft support bearings.
The movement of the part along the axis is supported by the stop of bearings directed into the retaining rings. They are located in certain grooves in the crankcase. The sealing of the ends of the part is ensured by a spiral bracelet spring.
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1 Topic by Destroer 06/26/2013 19:07
- Destroer
- Active participant
- Inactive
- Registered: 07-10-2015
- Messages: 39
Topic: 2v77f engine, I put it in Buran, modernization.
I finally bought a more powerful engine
