Replacing the piston on the trimmer where to put the arrow. Similar messages
Arrow on the piston of a two.stroke engine where to put a chainsaw
The heart of any chainsaw is an internal combustion engine that sets the working element. a sawing chain. During the operation of a garden tool, there is a need to disassemble the engine. This can be planned maintenance, cleaning from soot and soot, elimination of malfunctions or replacing nodes. If for this you will take the chainsaw to the service center, then you will not have any questions. However, with independent maintenance of a gasoline engine of a garden tool, the question often arises: how to correctly install the pistons back and where the arrow indicates them.
The heart of any chainsaw is an internal combustion engine that sets the working element. a sawing chain. During the operation of a garden tool, there is a need to disassemble the engine. This can be planned maintenance, cleaning from soot and soot, elimination of malfunctions or replacing nodes. If for this you will take the chainsaw to the service center, then you will not have any questions. However, with independent maintenance of a gasoline engine of a garden tool, the question often arises: how to correctly install the pistons back and where the arrow indicates them.
Usage
If the piston is powered with a signal of red stone, then its wooden head will advance, which will try to push the blocks standing in front (if they are moved and there are no more than 12). The nomination lasts about one and a half beats of the red stone (0.15 seconds) and is accompanied by a sound heard at a distance of 15 blocks from the piston along any axis. At the same time, if there are entities in the way, then if there are no blocks in their way, they will also be moved (and if the movable block is a mucus block, the entities will be thrown back), otherwise the head or block will pass through them; In the case of an essence block, it can be strangled by a block if it is solid.
When the piston is turned off, the head will move back. over, if this is a sticky piston, then the head will try to move with him a block “glued” to it. The effect of sticking occurs only when the head is moved, so the falling blocks after moving will still fall if there is a free space under them; Also, the block, which moved by a sticky piston, can be shifted by another piston without any complications. In addition, if the adhesive piston breaks off before
how he is in timepush out block, the piston “peers” from the block, which remains in its new place. If the piston has not pushed out anything and the diet is still disconnected prematurely, then the block that was destined to pull it behind him will be shifted as usual (though a little faster).
Installation of a piston on a Chinese lawn mower
The piston head at the time of installation indicates the direction of the player who installed it.
Progress:
First you need to make the base of the nozzle. To do this, cut a square with a side of 100 mm from a metal plate with a corner grinder. You need to mark it in such a way that there is a hole exactly in the center (at the intersection of the diagonals). To do this, from the center of the selected opening perpendicular to the short side of the plate, we measure a distance of 50 mm and outline the spitter cutting fishing line.
Cut the excess and get a square of 100 mm x 100 mm. Now it is necessary to twist the corners a little and drill the central hole for the shaft of a trimmer for the grass.
Twist the corners and drill the central hole for the shaft of a trimmer for grass
Cut the canvases for metal, measuring from each end 8 cm. We get 4 blanks with finished holes.
This workpieces must be given the shape of the knives. To do this, we plan a fishing line for the trimmer of the cut on the eye (special accuracy is not required), fasten all 4 blanks together and grind the excess.
As a result, we get the knives of the same weight and size, they can be sharpened a little on one side. Now all parts of a home.made nozzle for a trimmer for grass are prepared, you can start assembly.
We put a small puck on the screw and insert it into the corner hole. We put a knife on top, placing the sharpened side along the rotation of the shaft of the trimmer for the grass. Followed by a large puck and nut, which does not drag out, so that the knife rotates freely. We fasten the other 3 knives in the same way.
The end of the screw must be blown up so that the nut does not fly.
The nozzle is ready. It is installed by nuts to the ground and fixed in the same way as a three.lobed knife that comes with a trimmer. In a collision with a stone, the knives fold and go a little inside.
This idea was proposed by our constant author of the video Tatyana (Tula region). You can see in more detail the entire process of making such a nozzle for a trimmer for grass and find out some nuances by watching a video that she prepared.
When working with a trimmer, it is important not to forget about safety precautions using any nozzles, and especially homemade.
Where to put the piston with an arrow on 2 and 4-stroke engines | Finger displacement (disaxial) | Dnieper/Ural.
We offer to discuss this idea in the Комментарии и мнения владельцев on the publication. Share with us your thoughts, and also tell about your successful decisions.
Without accepting any of the sides of this acute (in the literal and figurative sense) discussion, let me show one of the last models of the Motokos of the German company Robert Bosch. It provides for a deviating knife and an arcuate bracket, excluding the “struck” of the knife on the objects unexpressed by the coat. I show the general view of the motorcycles and the knife itself, in two positions. General view of motorcycles
Good evening to everyone! Exactly three years as it sunk from the moment of discussing the “acute” problem for a trimmer for grass. Over the past 1000 days, a clear picture emerges: “Glory to the author is a craftsman who conducts an experiment on himself to achieve the limit of the metal from which these knives are made.
He has every right to risk his own health “. Now in stunt films you can often see Frvza. “Do not try to repeat the cinema tricks that professional stunts performed.»The very first article was supposed to end with about the same phrase:
»Dear summer residents. This is my personal experiment. If you are not confident in your locksmith forces, please not repeat it. And most importantly. I do not bear responsibility for the operation of the tool performed in the wake of my article.”And the last. Do I see errors, judging by the photographs, performing this tool.
Alas, the author of this apparatus does not even suspect how the hole should be made for the shaft.
I inform you. the distance from the closest to the edge of the plate of the opening point to the edge should be no less than the diameter of the hole itself. Students of mechanics will learn this truth no later than the second year of the institute. And what do we see here? A thin isthmus reminiscent of a narrow pinch making the peninsula from the Crimea.
This is a priori, the place that is weak in this design. it experiences the same loads as other knives, and “Perekop” there is a very thin. Where it is thin, there and I want to hope, and completely sincerely that over these three years this crossbone has not undergone loads comparable to the limit of this metal, but rather an alloy from which a holey plate is stamped.
How to change a piston with a 4t scooter?
We will describe the process gradually step by step. First of all, it is necessary to relieve plastic, which prevents us from getting to the engine.
The next step is unscrewed and remove the carburetor (it does not have to disconnect all the hoses from the carburetor, and just take it aside).
We unscrew the silencer at the place of its mount with the cylinder head and at the place of mount with the engine card (2 long bolt). Now we remove the muffler.
The next step is to take the plastic lid of the cylinder head. (2 halves connected by two screws) After that we remove the lid of the cylinder head, unscrewing 4 bolt. Unscrew the chain tension controller, which is located near the carburetor.
Next, unscrew 4 nuts of the cylinder head mount, after which we can remove the cylinder head. When we removed the chain tensioning controller, we released the chain and can easily remove it (after we removed the chain from the camshaft, we must fix it, for example, with a wire so that it does not fall into the engine card)
In this photo, the head has not yet been removed, but only the camshaft is removed and the chain is fixed. The next step remove the cylinder from the hairpins. If problems arise with this, then you can slightly approached the wooden part of the hammer from all sides of the cylinder.
Put the piston in the upper dead point position (the highest position of the piston position, at the same time we focus on the marks on the generator rotor.) It is necessary to ensure that the chain does not fly away from the leading stars, so as not to bother with its installation in the opposite position. Take a clean rag and close the hole of the engine crankcase so that various garbage does not get into it. Remove the locking rings from the piston and thereby free your finger (here you can use round.liners or small pliers.) Remove your finger with a small wooden bar (we try not to create a load on the crankshaft connector). This is where the process of removing the old CPG is completed.
Piston group of chainsaws
The dimensions of the cylinder piston group are determined primarily by the diameter of the piston made of heat.resistant aluminum alloy. Regardless of the model of the CPH of the chainsaws, it consists of a cylinder, a piston holding a finger and two latches.
In order to increase compression in the working unit and, as a result, increase in power, many manufacturers install two piston rings. The compression rings made of special cast iron, the chainsaws are tightly adjacent to the cylinder, as a result of which the combustion chamber is ensured.
Replacing the piston group in a chainsaw or trimmer
Repair of such a level should always be balanced. In such small engines operating at high speeds, the substitution of the 1st piston, which burned out or jammed, gives a long result and, as needed, you need to change the entire piston group. Therefore, you need to think about whether to use this saw further or purchase a new saw.
If this is a professional model, then such a repair should be carried out, but if it is an old household model like Husqvarna 40 and it has worked for more than ten or twelve years, it is unprofitable to repair it. Installation of rings on the piston of the lawn mower. Because its repair will cost, as well as the purchase of a new saw, let not Husqvarna, but on the Partner P350XT Chrome, worth 165 for sure. over, Husqvarna sells such saws, since Partner is its subsidiary.
But if you still decide to repair a chainsaw or a trimmer for grass, then you need original spare parts that are not cheap. With proper operation of the engine, the first repair may not occur soon and only a piston ring or ring will have to be replaced, depending on the model. But if the saw jammed, then you need to change the entire piston group. a cylinder, piston and rings.
It should be noted that the Husqvarna 136/141 chainsaws have approximately a resource of 500-600 mothers, Husqvarna 340/350-1000-1200 mothers, professional chainsaws of at least 2000-2500 mothers, provided strictly compliance with the instruction manual. In fact, you can’t rely on these figures, since the real resource can differ significantly both in large and less. But it can be approximately that semi-professional saws work 3-4 times longer than amateur, and professional up to 10 times or more.
Of course, there is nothing eternal, but it is one thing if you change the piston group, after long years of operation and it has worked out my motorcycle chassis, has fully paid for itself, and another thing is that this saw was refined for example, with one gasoline, without oil, and it jammed. Such a saw has to be repaired, since all other details are normal.
In this video I will show how to quickly change the piston on the trimmer. I will change on the trimmer.
How to put a piston correctly
The trunk shows and tells how to correctly install the piston in the cylinder on a scooter and motorcycle
Many firms specially overstate the cost of spare parts to buy new models. On chainsaws and trimmers for grass, for example, STIHL, spare parts are in a greater assortment than on Husqvarna. Therefore, choosing a certain model, find out how things are with spare parts.
Usage
If the piston is powered with a signal of red stone, then its wooden head will advance, which will try to push the blocks standing in front (if they are moved and there are no more than 12). The nomination lasts about one and a half beats of the red stone (0.15 seconds) and is accompanied by a sound heard at a distance of 15 blocks from the piston along any axis. At the same time, if there are entities in the way, then if there are no blocks in their way, they will also be moved (and if the movable block is a mucus block, the entities will be thrown back), otherwise the head or block will pass through them; In the case of an essence block, it can be strangled by a block if it is solid.
When the piston is turned off, the head will move back. over, if this is a sticky piston, then the head will try to move with him a block “glued” to it. The effect of sticking occurs only when the head is moved, so the falling blocks after moving will still fall if there is a free space under them; Also, the block, which moved by a sticky piston, can be shifted by another piston without any complications. In addition, if the adhesive piston breaks off before
how he is in timepush out block, the piston “peers” from the block, which remains in its new place. If the piston has not pushed out anything and the diet is still disconnected prematurely, then the block that was destined to pull it behind him will be shifted as usual (though a little faster).
Installation of a piston on a Chinese lawn mower
The piston head at the time of installation indicates the direction of the player who installed it.
How to install a piston in a cylinder on a trimmer for grass
How to put a piston correctly
The trunk shows and tells how to correctly install the piston in the cylinder on a scooter and motorcycle
Now about the third ring included. Its purpose is to spring the lower compression ring. It sets it for it actually, and usually does not bear any benefit during operation. You can throw this ring, or you can put it, there is no difference. How to install a piston on a chainsaw correctly. Many piston manufacturers do not have it at all in the kit.
It’s time to collect everything in place. Depending on the model of scooters, compression rings can be the same or vary in thickness and cross section. Most pistons for Honda scooters, for example, have different rings, where the upper is thinner than the lower and has a different section.
This must be paid attention to when installing, the upper is thinner and stand at an angle.
Also pay attention to the inscription on the ring (usually the letter T or the size of the repair), the inscription should always be on top, that is the opposite from the finger. First you need to put on the bottom, then the upper. In this case, you do not need to stretch them and bend. These manipulations need to be carried out carefully.
There are castles in the grooves for the rings that prevent the rotation of the rings during operation, so the rings gap should be in these locks, otherwise you will not stick the piston in the cylinder.
And the last important point, this is an arrow (1) at the bottom of the piston or the inscription ex. And the arrow and the inscription must be directed towards the exhaust (2). In this case, the locks of the rings will be located from the side of the petal valve. How to put a piston on a chainsaw correctly.
With all the panipulations with the piston, you must put a rag in the crankcase window so that something doesn’t get there inadvertently, we still need a crankshaft with bearings.
When installing a piston finger, pay attention to the condition of the separator (bearing), it may be necessary to replace it. Before installing the piston finger, install the locking ring on one side until the piston is installed (usually on the side where you will not be inconvenient for your finger and the second stop ring). Then put a finger with a bearing and a second stop ring, when fixed in a groove, it will publish a certain click.
That’s all, now put on the cylinder, not the piston (not forgetting to check the condition of the gaskets and lubricating the piston and the cylinder walls with motor oil), the cylinder head and tighten the bolts alternately on the crusade.
How to change piston on a trimmer.
In this video I will show how to quickly change the piston on the trimmer. I will change on the trimmer.
How to install a piston in a cylinder on a trimmer for grass
How to put a piston correctly
The trunk shows and tells how to correctly install the piston in the cylinder on a scooter and motorcycle
Now about the third ring included. Its purpose is to spring the lower compression ring. It sets it for it actually, and usually does not bear any benefit during operation. You can throw this ring, or you can put it, there is no difference. How to install a piston on a chainsaw correctly. Many piston manufacturers do not have it at all in the kit.
It’s time to collect everything in place. Depending on the model of scooters, compression rings can be the same or vary in thickness and cross section. Most pistons for Honda scooters, for example, have different rings, where the upper is thinner than the lower and has a different section.
This must be paid attention to when installing, the upper is thinner and stand at an angle.
Also pay attention to the inscription on the ring (usually the letter T or the size of the repair), the inscription should always be on top, that is the opposite from the finger. First you need to put on the bottom, then the upper. In this case, you do not need to stretch them and bend. These manipulations need to be carried out carefully.
There are castles in the grooves for the rings that prevent the rotation of the rings during operation, so the rings gap should be in these locks, otherwise you will not stick the piston in the cylinder.
And the last important point, this is an arrow (1) at the bottom of the piston or the inscription ex. And the arrow and the inscription must be directed towards the exhaust (2). In this case, the locks of the rings will be located from the side of the petal valve. How to put a piston on a chainsaw correctly.
With all the panipulations with the piston, you must put a rag in the crankcase window so that something doesn’t get there inadvertently, we still need a crankshaft with bearings.
When installing a piston finger, pay attention to the condition of the separator (bearing), it may be necessary to replace it. Before installing the piston finger, install the locking ring on one side until the piston is installed (usually on the side where you will not be inconvenient for your finger and the second stop ring). Then put a finger with a bearing and a second stop ring, when fixed in a groove, it will publish a certain click.
That’s all, now put on the cylinder, not the piston (not forgetting to check the condition of the gaskets and lubricating the piston and the cylinder walls with motor oil), the cylinder head and tighten the bolts alternately on the crusade.
How to change piston on a trimmer.
In this video I will show how to quickly change the piston on the trimmer. I will change on the trimmer.
Replacing the piston group in a chainsaw or trimmer
Repair of such a level should always be balanced. In such small engines operating at high speeds, the substitution of the 1st piston, which burned out or jammed, gives a long result and, as needed, you need to change the entire piston group. »How to put it in a chainsaw or trimmer correctly. Putting a piston sit on. Therefore, you need to think about whether to use this saw further or purchase the latest saw.
If this is a professional model, then such a repair should be carried out, but if it is an ancient household model of the Husqvarna 40 type and it has worked for more than 10 or 12 years, it is unprofitable to repair it. Therefore, how its repair will cost, so much. as well as the acquisition of the latest saw, let not Husqvarna, but on the Partner P350XT Chrome, at a price of 165 it will definitely be enough. over, Husqvarna sells such saws, since Partner is its subsidiary.
But if you still decided to repair a chainsaw or a trimmer for grass, then you need unique spare parts that are not cheap. With proper operation of the motor, the 1st repair may not occur soon and only a piston ring or ring will have to change, depending on the model. But if the saw jammed, then you need to change the entire piston group. a cylinder, piston and rings.
You need to see that the chainsaws of Husqvarna 136/141 have approximately a resource of 500-600 mothers, Husqvarna 340/350. 1000-1200 motorized hours, a security chainsaw of more than 2000-2500 motorized hours, provided that the annotations of operation are seriously observed. In fact, it is impossible to rely on these numbers, because the real resource can differ significantly both in the huge and the smallest direction.
Naturally, there is nothing endless, but it is one thing if you change the piston group, after long years of operation and it has worked out my motorcons, has fully paid for itself, and it was another matter that this saw was refined for example with one gasoline, without oil, and it jammed. Such a saw has to be repaired, because all other details are ordinary.
Many companies specially overstate the price of spare parts to buy new models. On chainsaws and trimmers for grass, for example, Stihl offices, spare parts are in a greater assortment if on Husqvarna. Therefore, choosing a certain model, find out how things are with spare parts.RVT
How to correctly install rings on a two.stroke scooter piston
There is nothing complicated in installing the rings on the piston of a two.stroke scooter, in general, and many are understandable to many. But most of the scooterists, who have not been made by similar equipment not so long ago, do not even have an idea of how to change the piston on the scooter, how to correctly install the rings on the piston, where the arrow on the piston should look and almost everything else.
In this lesson, I will tell you how to put the rings on the piston correctly and collect the piston in place. Because we have already said about four.stroke engines earlier, here we will only talk about two.stroke engines.So, our piston has worn out and requires replacement.
How to Replace Trimmer String. Husqvarna 128LD
The trunk shows and tells how to correctly install the piston in the cylinder on a scooter and motorcycle. How to put a piston on a motorcycle in this lesson, I will tell for you how to put the rings on the piston correctly and collect a piston in place.The rings wear out first.
Rings and piston wear out first of all, and you usually need to change only them. With strong wear of the piston, it is necessary to melt the cylinder. It is also broken up when the piston wedges in the cylinder, forming deep scratches on the walls of the latter.
There is nothing wrong with this, and if your new cylinder has passed the correct boring (for which only about 10 will need to lay out), it will already need a repair kit with a new piston. Such rings are indicated by marking 0.25. The second bore, respectively 0.5 and t.D. Up to one.
Why is the stihl chainsaw does not start after replacing the piston
If the saw does not start after replacing the piston, it is necessary to check the supply of fuel into the chamber, as well as diagnose the ignition system. Very often, when installing the control lever on the chainsaw, the masters forget to connect the wires coming from the ignition coil, as a result of which the spark disappears, and the saw does not start.
In addition, the problem can be hidden in a pinched fuel supply hose or if it is not connected at all. Of course, there may be many reasons, but it is worth remembering that if all the work on replacing the piston is performed correctly, the tool should start and work correctly without problems.
Fuel system
So that as the fuel consistency is spent, the fuel tank was filled with air and negative pressure was not created in it, which would not allow the combustible to enter the carburetor, and with all this, so that a fuel does not flow out of the opening for air, in the lid that closes the pouring hole, Brown of a sapun. And by the way, if the saapun clogs with a dirty rod, then the chainsaw will staller.
From the tank, fuel sways through the hose freely dangling in the tank. Husqvarna; Who knows where the gas tank saepun is and how its saepun is in the upper part. Thanks to this, regardless of the position of the chainsaw, the hose is always immersed in fuel. The fuel filter is attached to the inlet end of the hose. A combustible carburetor snut.fuel.
To facilitate launch, part of the chainsaws are equipped with a manual pumping pump. a primer. When starting a chainsaw with a primer, the carburetor is filled with fuel in advance (an excess of fuel flows back into the tank). Thanks to this, the engine triggers, t.to. The stage of filling the carburetor is already passed by fuel, which is made without a primer by a carburetor pump due to the starter.
Installation of rings on the piston of a four.stroke scooter
In any case, you once have to change the piston or rings. Why in any? And therefore, similar Chinese details as consumables must be changed almost every two seasons. If you are the owner of a used four.stroke scooter, then most likely a Chinese piston with rings is also installed in it, at best, Taiwanese.
Why in the used Japanese scooter is no longer a Japanese piston.
This is why, as a rule, after a serious breakdown, which the owner cannot fix it in Japan. It is easier for him to buy a new one than to repair this. And a serious breakdown can be attributed to the decline in compression due to wear of rings and piston. Although in fact this is not such a problem, it can easily be solved.
How to install rings on a piston correctly.
So you decided to replace the piston, or just a piston with rings, or maybe only rings. You bought a kit, but what to do with it you don’t know
It is important to know how to dress rings on a piston of a four.stroke scooter
Here are 5 pieces, two thin, one oil.splendid and two compression.
There are three grooves on the piston. To the lower, the one that is near the hole where the finger is inserted, three rings should stand, one masl.masteful and two fixing thin.
You can also familiarize yourself with other articles on the topic:
Echo Trimmer Repair – How to replace the Piston Ring
Features of the selection of a piston group
When selecting a new piston or pair of piston-cylinder, be sure to pay attention to the compliance of their markings. Each model of motorcycles exists from two to four dimensional groups of pistons
Their diameter may differ from 0.01 to 0.025 mm.
The labeling of the group is usually applied in the form of a stigma on the bottom of the piston and the lower end of the cylinder. Make sure that these numbers match.
The cylinder must be squealed before installing the piston. If the piston has acute internal corners remaining after machining or due to the marriage of casting, they must be twisted with a file and covered.
To arrange the piston correctly, focus on the arrow knocked out on the bottom of the part. If it is absent or not visible, put the piston in the same way as stop pins: they should “look” at the vertical sectors of the windows without windows.
When selecting a suitable finger, pay attention to its marking. Just like pistons and cylinders, it belongs to one of the several dimensional groups
Usually, a point of a certain color is placed on the end of the finger, the same label is available on the bobes inside the piston.
The piston fingers of the engines of modern motorcycles are usually included in the boss under the influence of slight effort at room temperature. In old models, fingers were pressed after heating in boiling water. In order not to make a mistake, you should familiarize yourself with the instructions for the operation of the vehicle.
What will be needed to replace?
For such a procedure, it is worth preparing a set of wrenches, a rattle with end heads, a dynamometric key, a puller for piston rings and a set of rings itself.
The tool for installation/dismantling of piston rings is characterized by a simple design and affordable price. Without this device, the replacement process can turn into an almost impossible task. Of course, earlier car enthusiasts cost a pair of screwdrivers. But it is better to have such a tool, otherwise you can damage the rings or the surface of the piston without it without it. over, it is always in stock in car shops.
Installation of phases of gas distribution of Ch2 (in college-ignition)
Without knocking down the piston with the VMT. we orientate the distribution shaft so that the large hole and risks on its star become shown as shown in the photo and with the simultaneous dressing of the chain set the distribution shaft in the bed.
Ideally, the risks on the asterisk should become strictly parallel to the plane of the valve cover connector. In practice, unfortunately, such accuracy is difficult to achieve. And this is mainly due to the stretching of the timing chain. And there is nothing to be done about it. either change the timing chain to a new one or catch the phase of crossing the teeth, but this method of installing the gas distribution phases for me personally is not acceptable for me.
We orientate the camshaft bed with a label in the form of the letters “e” and “x” to the exhaust channel and install the bed.
We tighten the cross Cross the nut of the bed then we tighten two bolts on the side tide of the GBC.
Where the arrow on the piston of the chainsaw indicates
The heart of any chainsaw is an internal combustion engine that sets the working element. a sawing chain. During the operation of a garden tool, there is a need to disassemble the engine. This can be planned maintenance, cleaning from soot and soot, elimination of malfunctions or replacing nodes. If for this you will take the chainsaw to the service center, then you will not have any questions. However, with independent maintenance of a gasoline engine of a garden tool, the question often arises: how to correctly install the pistons back and where the arrow indicates them.
Due to the fact that the pistons have the correct cylindrical shape, after extraction, many inexperienced masters confuse how to return them correctly to their place.
Installation of a piston on a Chinese lawn mower
Pistons in cylinders in modern internal combustion engines have a very strict position, so the arrow always indicates the direction where the exhaust gases move. If you still have questions, the garden tool has instructions for operation. Even if it is in English, it will not be difficult to translate it.
What can the incorrect installation of the piston lead to
The incorrect installation of a piston ring in a chainsaw engine will lead to the fact that it will work strained and with interruptions, it can stall. In the end, at best, the piston or cylinder will be damaged. In the worst case, the engine itself will fail and require expensive repairs.
If your chainsaw has a need for repair or maintenance, bring immediately to a specialized service center. It is better to pay a specialist than buy a new garden tool.