A Gallon Of Milk A Day

Small manual on proper usage of internal combustion engines on cars

1. ZIP: to get the mixture to the engine by repeatedly pressing the pump tank until the mixture does not come close to the carburetor. Pull the starter rope for about ten times to allow the engine to vaporize in the cylinder just the right amount of mixture.
WARNING: If you were to get too much mixture in the cylinder will become very hard starting with consequent rupture of the cord. And 'no need to dwell in tow, the mixture is incompressible. To resolve this problem, unscrew and remove the spark plug. Then, pull the starter several times to allow the excess fuel out. The transaction will be completed when the spark plug hole will not leave the largest amount of mixture in the form of spray, but a jet vaporized. Only then can you reinstall the plug. (If the hardness of goodwill persists, repeat the procedure but screwing the pin of the maximum carbide 1 / 4 turn (max. 1 / 2). Now you can heat the candle with the tool and pull the rope. WARNING: the installation of Accelerator plug on the engine and starter have to pass a few seconds otherwise the candle will burn, pull the cord must be short and fast (for the length of the tube as an example containing the antenna wire.) Move the starter rope all the way can cause uncoupling return spring. After it starts to leave the engine running at low speed with accendicandela quote for a few seconds, then remove and check that the motor is running and functions at all speeds.
2. off: the best off a glow plug engine gives the arrest of the flywheel that can be done easily with the handle of a screwdriver when the engine is idling.
WARNING: Although the engine, these engines can be dangerous when running at high speeds. Other solutions are off the total closure of the air filter or muffler (although both are a source of flooding the engine and suffering for the candle) or the constriction of the silicone tube Food (with recommended system to completely empty the engine when you decide not to turn it on for a few days).
3. carburization: the engine must take the turns smoothly without reaching the rev. If the transition from low to high regimes were to experience a no fuel then the engine is lean and need to loosen 1 / 4 turn at a time the lives of the carburetor passage of the minimum. If the engine does not have this adjustment loosen the screw of the same size of the maximum. If the engine is struggling to take the turns a lot of expelling the mixture from the pot, then the fuel mixture is too rich. In engines with a single screw is necessary to intervene on this closing again and again 1 / 4 turn at a time. In more sophisticated engines instead you must try to understand which of the two screws on carburetor action. If in fact the engine has trouble in the first part of the opening of the gas, but then breaks free and reaches all the turns, then you must tighten the screw a little at a time of transition min / max.Qualora instead the engine immediately and had a good response reach but then a few laps with a clear excess fuel coming out of the muffler, you should always screw a little at a time, and trial and error, the screw up.
WARNING: excessive closure of this life is the thing most likely to damage the engine (do not overdo it, the engine must always smoking and remain within appropriate regimes, excessive wear and overheating due to closure of the engine with safety rupture of the connecting rod).
4. candles see parameters and dimensions dictated by the manufacturer. Some engines need spark plugs with short thread, use one with long thread can cause damage to the piston. Given the limited availability of these candles you can work around this problem by using a long candle with two washers.
5. Fuel oil and nitromethane see values \u200b\u200bdictated by the manufacturer.
WARNING: always good quality, recently manufactured and that has not been held open or the sun. The presence of castor oil reduces the chance of seizures and excessive wear of the cylinder at high temperatures, but requires a careful cleaning of the engine with oil after using "After-run commercially.
6. use: We recommend using the model car break in the engine normally, but without surpassing the speed and fuel mixture with a slightly greasy. It takes just two tanks of running during which the engine is good to provide excellent cooling, it is possible that when you go to the model car without a body (especially for those very closed). Even after running it is important to check that the temperature is not too high. Usually the problems are felt to above 120 ° C. This requires that the engine receives a good amount air (if the head of the engine comes out from the body you need to open some holes, such as the front windows.
Additional care about the air filter which must of course be cleaned and oiled evenly with the proper oil.

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tires terry

A component that plays an extremely important function in order to ground all the horses which has our engine and to ensure proper adherence to the asphalt of the model is represented by the tires ...
many drivers often underestimate this particular face considerable problems in keeping and then sought the causes acceleration in the carburetion, positioned in, in the body, etc..
Of companies that produce tires there are many, including ATS, LG, MMT, GRP, JAP, ARROWS, NNT, etc. and everyone has their favorite company, why do you want discounts, or because the seller close home is just that brand, or because the tire seems fresher than the others. However
should appear as a rubber to be competitive?
first looks at the circle: it must be stiff enough to not flex during operation, yet flexible as possible to withstand high velocity impact against a curb or another model or deform slightly, but not move immediately to fracture. If the material
seems frail very strange behavior is observed: there would be no elastic deformation of the circle before the break with the consequent breakdown of the upcoming special.
then necessary to observe the contact between the rim and tire: the super glue should be well distributed on the circle to ensure proper gripping the tire because it must ensure grip even when subjected to tension-type transverse to the direction of travel.
Another feature to watch out for is the type of mix. Using an instrument called a durometer
you can 'measure the hardness of the rubber that goes from minimum to maximum of 20 shore 50 shore. As we increase the value of the shore rubber becomes increasingly difficult. Below 20 shore rubber is so soft that in a few drops dramatically speed also in contact with minor uneven road surfaces, risks degenerating; over 50 shore is so tough that hardly able to warm up and good grip on the asphalt.
What is the proper mix to turn down the air temperature, the asphalt, the kind of attitude, and the model in question.
is up to the pilot to choose this component in accordance with its needs to try to make the most of what 'the engine and chassis can offer.
Last but not least, you need to control the diameter of the tire means the ratio of diameter of the rear tire and diameter of the front provides an extremely important one. All these data are collected in the table to roll out along with the number of teeth of the pulleys, and allows us to understand if the model is pulling on four wheels or only on two wheels.
also lowering the tire model becomes much more responsive at low revs missing something in terms of speed, and allowing the engine to reach the turn more easily by reducing the time between the gas and changed.
How should preserve our tires?
As the rubber for high performance must be fresh, proper maintenance of this plays a very important role.
The tires should be kept in a place away from heat and light placed inside a bag to keep them in part from direct contact with the air and especially in a dry place. They all look silly but when you get on track with tires well maintained and turns you notice the difference!

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anti-roll bars

anti-roll bars are like "soft side": work only in transverse direction. The operating principle is as follows: when one side of the suspension is compressed, that extreme of the bar is raised. The other end of the bar will tend to rise, lifting the other side of the suspension, which turns into a resistance rolling chassis. How strong and how much, the other side is raised depends on the torsional stiffness and thickness of the bar: a long thin bar will twist, and do not raise much the other end, allowing the frame to tilt to the extent permitted by the suspension . Note that the bar is called for only when one end is at a different height than the other, as in the curve. When both ends are raised to the same extent as when braking, the bar is at rest and has no effect. For this, the anti-roll bars only affect the cross-flooding of the machine, not the longitudinal.
must be said that the anti-roll bar I'm not the only factor that determines the tendency to tilt the frame: they work together with the springs and shock absorbers. Suppose you use an anti-roll bar at the rear, without changing any other setting. When the car enters the curve, the chassis starts to lean. Normally, the outside suspension compresses, the inner and outer wheel would extend support a load much greater. With anti-roll bar, however, even the inner bearing is somewhat compressed, so the frame tilts less, and the rear end remains at less than normal. In this way, the rear end bears a greater load, and this is distributed more evenly between the two wheels, traction is increased and more consistent. Remember that this applies only to the inclusion in the curve, the mid-corner situation is different. Normally, without the anti-roll bar, the chassis tilts would stop when the outer spring has fully offset the torque roll. Instead, the anti-roll bar, a bit 'of that torque is compensated by the inner bearing, pressed by anti-roll bar. If the suspension is compressed outside less than normal, the rear floor has a height greater than normal, reducing the burden borne by increasing the rear and on the fore. And 'as if the rear had a bit stiff', increasing directionality and decreasing the traction at the rear. This, however, is more constant, since the weight is distributed evenly between the rear wheels. None of this is on rough terrain: the anti-roll bars can significantly complicate the behavior of off-road machine, and so are rarely used on rough tracks. Use an anti-roll bar on the fore similar but opposite effect: decrease the directionality, but making it more consistent and uniform.

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How to change the structure

designed to change the trim of the car is to improve the lap times, or make it more manageable, or, as often happens, both. A car easier to drive allows for better times and more consistent, than to trust the pilot, who will need it when the situation becomes more competitive, and this is perhaps the most important thing.
Even before you start thinking to change the attitude, we must consider these two aspects: first, the machine is in perfect condition? We must ensure that all suspension components act without effort, without excessive, and that the machine does not have strange settings. Things like this can really make unpredictable behavior.
Second, beginning with the tires. If the tires are the wrong type, the time you go to work on the set everything is wasted: the machine will never be as fast as it could.
The first step in changing the fundamental structure is to determine what factors affect the behavior you want to change. Experienced pilots and mechanics, and generally people with a good knowledge of the dynamics of vehicles, or already know the 'feel'. To know what to change, you must know the function of each element. For example: Change the convergence at the front does not change the balance of the car, but the inclusion behavior in curves. From the material presented in previous chapters should be clear, but in practice it may be difficult to evaluate the difference between the actual behavior of the machine and the desired one.
Here are some examples.
suppose to run on a track wide and smooth, with many small irregular rhythms of the land. Do not think to take both a smooth adjustment of springs and shock absorbers, and a very low roll center, the machine tilts from side to side with the bumps, making it very unstable, unpredictable and poor traction. In this case, tighten the springs and shock absorbers will increase traction, but will not be the best option, but that would raise the roll center, ensuring that it remains high when the frame tilts. Note that if you follow the roughness almost rhythmically, a choice of soft springs and shock absorbers will "go into resonance" the frame, with a strange feeling of instability. In this case, it would be better to tighten a little 'shock absorbers and maybe the springs. so the car would jump on top of the irregularities without sinking in a hollow. The roll is not the only possible source of problems on a bumpy track, if the suspension is too bad race, you may suffer from excessive pitching. The solution is simple: reduce the negative stroke of the suspension. Although this increases the risk that the chassis touches the ground in great leaps, the stability will improve in areas of very bumpy, especially in detached and accelerated.

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length wire antenna

I would like to shorten the wire of the receiver, can I? By how much?
How many times have we heard or we have set ourselves this question ... the trick to see if and how we can cut the wire antenna, is solved with a number, the Lambda wave, which is nothing but the amplitude of a radio wave.
Clearly, however, the radio wave is so much talk about fractions Frandi wave and if we are to 1 / 2, 1 / 4, 1 / 8, 1 / 16 or 1 / 32, vuoldire that we are on the air, otherwise may have problems.
must be said that the higher the fraction of a wave, the smaller the chance of radio interference, so the best fraction is 1 / 2 while the worst 1 / 32.
I attach a excel file, however, that I had done years ago talking with a fellow engineer. in telecommunications ... here there is also the calculation of the charging time of a battery pack.
Click on the link to download the excel file that allows you to calculate the frequency and also the knowledge to know how the charging time of battery packs Download