The first little micro-car “mouse” I built for my kids. As a result, I accumulated some experience of designing and has already planned not as a child, and “adult” car. Called it “mouse-2”. Built a long time, or rather, not so much built, how many were looking for the necessary parts. This, in particular, due to the use of “Mouse-2” mechanical brakes (now I change them for hydraulic). Design drawings and the construction was carried out simultaneously, although the basic parameters of the “Mouse-2” was thought out by me in advance.
When decided to do the car (the material about it were published in the “Modeller-designer” № 5, 2007), then I faced a problem — where to work? Not under the same open sky in the courtyard. A temporary shed or even the shed again to be fully rescued in the cold season they also work practically impossible. But because the car manufacturer could drag on for years.
In such technical sports, such as motorcycle, automotive, karting, and beginner athlete and the more experienced master in competition or in training often have to drop out of the race due to technical defect of the engine, in particular breakage of the crank mechanism.
As you know, in a two-stroke motorcycle engines bearing-connecting rod is one of the most loaded nodes. At the same time, its technical condition depend on time and the quality of the engine. To determine the wear and furthermore make the necessary repairs without dismantling the crankshaft is almost impossible.
When I bought a used passenger
Engines MMVZ-3 115 often used on maps and — with appropriate upgrades-cooling system — tillers and microfracture. Among the works on their service, there is also such as installation of ignition. At first glance it runs just the ignition timing that is specified in the instructions to the engine corresponds to the rotor position sensor, when its longitudinal groove coincides with the projection on the winding frame sensor. But not always: the spark occurs either too early or too late than it should be. Apparently, due to the scatter of the electrical parameters of the switch.
What is a shame to damage the car at the entrance to a private garage! Unfortunately, this happens with young drivers is not so rare, especially if the garage is to put it mildly, does not differ too much space. Scratches on doors or wings and broken tail lights — that’s the usual consequences of inaccurate targeting.
Drivers know: after long Parking of the car in the cold to start the engine. At low temperatures freeze even antifreeze! And those who use it for cooling water and drains it at night, lose the opportunity to fill the radiator with hot water — burst frozen in the cold of the cylinder head and the block, and the boiling water almost immediately freezes, forming ice plugs.
Bike, perhaps the most common vehicle. And the fact that the most economical — there is no doubt that only two sandwiches to two hours to pedal. But is it possible to increase the efficiency of the human “engine”? With the reduction of spending “fuel”, nothing happens. Friction and the weight of the machine is reduced almost to a minimum. There is also a “box of speeds” the device for changing the gear ratio by switching the circuit to a small or large sprocket. It remains only to lengthen the levers of the pedals, but experts adamantly claim that their optimal length — 170 mm.
One of the main problems faced by the Amateur constructor engine aircraft — selection or production of the power plant the necessary power, weight and efficiency. This problem is solved normally, on existing capacities and experience of building such units.
