How to disassemble a Stihl chainsaw ms 180

How to repair a Stihl 180 chainsaw

Question: what is the gap on the rings of the Stihl ms 180 chainsaw?

Answer: On new ones. 0.2-0.4 mm.

Answer: Black. fake, original STIHL spare parts must be registered, printed with the “S” sign.

Question: Chainsaw MC 180, how and how can you clean the carbon deposits on the piston without removing the cylinder and damaging the engine? And the groove depth of the saw bar became 7mm, how soon to change it?

Answer: We do not recommend washing off carbon deposits with any additives, only disassembly. If the groove depth is less than 5 mm, the tire needs to be changed.

Question: Today my Stihl 180 chainsaw had to be disassembled, for the first time in 4 years. began to stall at idle after 10-20 minutes of operation. Disassembled the carburetor to the screw. there everything is in the oil-saw mud, washed everything out, collected it, started it up from the 5th.

Normal, but a lot of revolutions. the adjusting screw did not remember how he stood, screwed it in as best he could. To twist it by ear? and that it regulates in general, idle speed or mixture quality?

Answer: This is the idle speed adjustment screw, turn it out with the engine running until the chain stops rotating. In 180m calm, unregulated carburetor, only idle speed is regulated.

After reassembling the carburetor, I usually screw in this screw so that the gap between the screw head and the carburetor body is slightly more than 1 mm. And then I screw up the idle speed a little.

Put on the tachometer. but you can do that. so that a normally tensioned chain does not move on a warm engine.

Question: Tell me what exactly to clean in the carburetor. The mesh is clean, it is clean under the needle, I did not unscrew the adjustment screws, I’m afraid if I add carburetor misalignment to these symptoms. it will definitely be possible to put a cross. can soak it in acetone?

Answer: By the carburetor. Turn out everything that can be unscrewed. remove covers, shut-off needle, adjusting screws, orifice. We do not pick out small caps inside, but on the contrary, we check if they have come off. And we blow from a thin nozzle under high pressure into all holes, starting from those where the adjusting bolts were screwed. Then, when assembling the carburetor, screw in the adjusting ones by 1 1/4 turns and start adjusting the tachometer.

Question: On the Stihl ms 180 chain saw, the ignition is set according to marks taking into account TDC or in another way?

Answer: The magnetic pair must be opposite the ignition module at a certain distance.

Question: is it possible to use mineral oil for 2-stroke engines with air and water cooling Ravenol Selfmix to prepare the fuel mixture for the Stihl MS 180 chainsaw

Answer: You can’t! Air-cooled 2-stroke oil can be used! We recommend only STIHL oil.

Question: Is there an adjustment of the oil supply to the chain?

Answer: No. Standard adjustment. At full throttle, oil is supplied to the chain, at idle no.

Question: The Stihl 180 chainsaw broke down. Builders sawed aerated concrete for it at a construction site. The result is no piston, the saw will not start, the tire and the chain are in the trash. I called the service center, they say the original piston 6300, and the Chinese one (Champion). 2000. Plus gaskets and gaskets. Work for free (I was surprised myself).

Does it make sense to restore this saw if you put a Chinese piston there (the saw will rarely be used in the country) and change all the oil seals-gaskets? I have a new tire and chain – I won’t have to buy. According to estimates, the entire repair will cost about three and a half thousand. Is there any reason?

Part 1 Stihl MS170 Chainsaw Stripdown Oil Feed Fuel Tank Clutch Carb Flywheel Removing How To

Answer: It is worth replacing the crankshaft, the bearings are most likely worn out. The carburetor must be disassembled and washed. it’s full of dirt. It is obligatory to change the filter. as a result, you will get a Champion saw in the Calm body. For rare use in the country. it will be fine.

Question: Recently I bought a Stihl mc 180 chainsaw, worked somewhere in the tank 4, when cleaning, I found that the chain was not tensioned, although it was not felt during operation, I began to tighten, the screw is turning.

When I looked closely at the screw, I was horrified, it was bent enough, I tried to
unscrew. Did not work out. Please tell me if you can get it somehow without contacting the service?

Answer: Easy to pull out. prykovyrt with a screwdriver, remove together with the guide. The thread on it is metric, the nuts are easy to pick up. Only after straightening is it necessary to drive it out with a nut. check the condition of the thread. The nut is long, it can jam if the screw is slightly crooked.

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Question: Stihl ms 180 combination lever jumps out of the saw body groove when shifting. What to do?

Answer: The control shaft seat is worn out. Replacing the saw body (crankcase).

Question: What should be the pressure in the piston of a Stihl 180 chainsaw?

Answer: If you mean by pressure. compression, then it must be at least 8 Bar.

Question: Tell me what bearing size is on this chain saw?

Answer: Deep groove ball bearing 6002.

Question: I bought a new STIHL MS180 C chainsaw. No experience. To change the chain tension, I follow the instructions: I raised the handle of the wing nut and try to loosen the wing nut by turning it counterclockwise. But the handle won’t turn. Maybe I missed some kind of procedure?

Answer: Lift up the handle of the wing nut and loosen the wing nut, while you need to loosen the tension wheel by turning it to the left.

Question: Stihl saw 180 ms stopped starting. When turned off, the shift control shaft flew out of its seat. from the ear. He took off the cover. I look, the throttle thrust from the carburetor has flown off. I put the whole thing in its place, put it together. And she did not start.

I noticed that when the lever is down at the start, the air damper does not completely close the hole in the carburetor, it should be so, or it should completely close. may not start because of this?

Answer: Should completely cover. Maybe because of this, the cold will not start. The choke axle may need to be changed. Although you need to look. if the groove in the lever where the rod is inserted is not very developed, you can try to slightly bend the rod.

Little by little, until it starts to close tightly. Most often, it does not completely close, and it is very difficult to start a cold one, and even there is no primer. This is one of the diseases of these models, a frequent occurrence.

Dismantling the clutch and oil pump drive

Before disassembling the clutch, the drive sprocket must be removed. To do this, carefully remove the lock washer from the grooves on the shaft and remove the sprocket and needle bearing.

With a high head 19, you need to unscrew the clutch. The thread on it is left-handed, so it unscrews towards the tire, and not the back of the Stihl 180 saw.

disassemble, stihl, chainsaw

Having unscrewed and removed the clutch, you need to immediately remove the reflective plate and the oil pump drive, this is easy to do, because they are put on the shaft without any fastening.

How to set the ignition

It is necessary to set the ignition on the chainsaw. The ignition is adjusted as follows:

  • turn out the candle and evaluate its appearance;
  • specify the distance between the magnets and the coil (up to 0.2 mm);
  • check the spark.

Major malfunctions

The chainsaw must be used according to the operating instructions, then it will last a long time and will not fail. All possible malfunctions of the Stihl chainsaw can be identified and eliminated by yourself. Consider the main problems that may arise in the components and design of the device, and how to repair the Stihl 180 chainsaw with your own hands.

How to disassemble, repair and assemble a Stihl chainsaw

In order to repair the device, it must first be disassembled. You need to remove the side cover, saw chain and bar. Then clean the instrument, blow it out with a compressor and clean all the assemblies with a brush. Then remove the handle. To do this, remove the plugs from the shock absorbers using a screwdriver. After that, remove the shock absorbers and the handle.

Then the starter is removed. Remove the housing cover and unscrew the starter screws. The part is removed. Then the flywheel is removed by unscrewing the nut that holds it, unscrew the flywheel nut. You need to twist to the left. Remove the flywheel. Then dismantle the clutch, oil pump drive and carburetor.

After that, the motor is removed and disassembled. It is held in place by 4 screws on the bottom of the saw. You need to unscrew them and remove the motor. Then the engine itself is disassembled. Unscrew the crankcase screws, remove it. Then dismantle the crankshaft, oil seals, bearings and piston rings. At the end of the disassembly, repairs and troubleshooting are performed..

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After repair, the tool will need to be reassembled. To do this, install the piston on the connecting rod. The arrow on it should look along the chain, and to the left of the piston will be the side of the crankshaft in which you want to mount the flywheel. They put the piston in the cylinder. Install the bearings, oil seals and circlip into the cylinder. After that, degrease the place of fixing the crankcase and install it in its place. When reassembling, follow the reverse sequence of dismantling..

How to disassemble the engine of the Stihl 180 chainsaw

Carburetor repair and adjustment

The carburetor is adjusted on a warm engine. If the engine fails to tune, the carburetor stuck could be the cause of excess gasoline in the mixture. To remove the part, it is necessary to unscrew the fastening nuts, disconnect the ignition and the rod from the engine control lever. Then the lever is removed. Then you can remove the filter and carburetor.

The muffler is secured with two nuts. You need to untwist them and pull the muffler towards you. Then the screws of the coil are unscrewed and dismantled. On the Stihl saw, the carburetor has 1 idle adjustment screw. If the idle speed is violated, then the carburetor needs to be repaired. This is a complex process and difficult to do on your own. Contact a repair shop.

Chainsaw repair in the “Direct Hands” service center

In case of equipment malfunction, you can contact us. We, as a dealer and official service of Stihl, serve individuals and legal entities in St. Petersburg and the Leningrad region. Our experts will carry out warranty and post-warranty repairs of the Stihl chainsaw for you.

Removing the handle

Direct disassembly of the Stihl 180 begins with the removal of the handle, which is attached to the body of the chainsaw using three rubber shock absorbers. To remove, it is necessary to remove the plastic plugs from the inner cavity of the shock absorbers, then, using a powerful screwdriver, squeeze out the upper shock absorber first, then the one closer to the rear handle.

At the back of the handle there is a throttle trigger, which is connected to the carburetor through a wire rod, in order to disconnect the throttle trigger from the throttle trigger, it is necessary to unscrew two screws and disassemble the handle.

When the handle remains on one shock absorber, it is necessary to unscrew the body of the chainsaw from the inside of the handle and bend it to the side, remove the body from the last rubber band.

Removing the flywheel

The flywheel of the Stihl 180 chainsaw is twisted with great effort, so a head with a metal knob is required to remove it. The nut holding the flywheel is unscrewed by the head by 13.

To block the crankshaft from turning, you need to unscrew the spark plug and install the piston stopper through the spark plug hole, if it is not there, you can use the old cord from the starter, with knots tied to it and immersed in the cylinder through the spark plug hole.

It is strictly forbidden to keep the flywheel from turning by installing a power screwdriver and other tools between its ribs and the body, with this method of blocking from turning, the flywheel blades are not able to withstand the load and break off.

After the piston is locked in the cylinder, you can unscrew the flywheel nut. The thread in the nut is ordinary, so you need to turn it to the left. Having loosened the nut, you do not need to remove it to the end, it is enough to unscrew it until its upper edge is equal to the tip of the shaft, after which a soft metal drift is installed on the nut and a sharp blow is made on it. Thus, the flywheel from a sharp impact jumps off the shaft and can be easily removed without the help of additional tools..

Carburetor, muffler and ignition coil

To remove the carburetor, it is necessary to have a head 8 and an extension, with which it is convenient to unscrew the nuts securing the carburetor and air filter. Before dismantling the carburetor, it is necessary to disconnect the ignition wire and the choke rod from the engine control lever and remove the lever, only after that the air filter and carburetor are removed.

The Stihl 180 muffler is attached with two nuts, by unscrewing which you need to pull it towards you, it can be easily removed.

The coil is mounted on two screws, to remove you just need to unscrew them.

Dismantling the clutch and oil pump drive

Before disassembling the clutch, the drive sprocket must be removed. To do this, carefully remove the lock washer from the grooves on the shaft and remove the sprocket and needle bearing.

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With a high head 19, you need to unscrew the clutch. The thread on it is left-handed, so it unscrews towards the tire, and not the back of the Stihl 180 saw.

Having unscrewed and removed the clutch, you need to immediately remove the reflective plate and the oil pump drive, this is easy to do, because they are put on the shaft without any fastening.

Removing and disassembling the engine

The engine is held in place by 4 screws installed on the bottom of the Stihl 180 chainsaw. To remove them, unscrew them, then carefully remove the engine from the seat and the rubber pipe of the carburetor.

To disassemble the engine, 4 crankcase screws are unscrewed, and it is removed, then you can remove the crankshaft assembly with oil seals, bearings and piston rings.

Removing bearings and seals usually does not require additional tools, but if the bearings were pressed onto the shaft with force, then a special puller will be needed for dismantling..

To remove the piston from the connecting rod, you will need to remove the retaining ring from the seat using a thin screwdriver, then the piston pin is squeezed out from the opposite side, after which the piston is retracted to the side.

Disassembly and assembly of Stihl МС 180

Stihl MS 180 is a reliable and unpretentious tool, but sometimes it requires repair, like any technique. In this article, we will consider how the Stihl MS 180 chainsaw is disassembled, which is necessary in the event of an engine overhaul.

  • Preparatory stage
  • Removing the handle
  • Removing the starter
  • Removing the flywheel
  • Dismantling the clutch and oil pump drive
  • Carburetor, muffler and ignition coil
  • Removing and disassembling the engine
  • Assembling the Stihl 180 chainsaw

Removing the starter

At the next stage, the upper housing cover is removed and the 4 starter mounting screws are loosened, after which it is necessary to remove the oil tank and fuel barrel covers. The starter is removed quite simply and there should be no problems.

After removing the starter, the opened inner cavity of the chainsaw must be cleaned, since usually there is a large amount of compressed small sawdust on the body under the starter.

Sthil MS 180 chainsaw delivery set

Stihl MS 180 delivery set

The Stihl MS180 is as follows:

  • Chainsaw
  • Chainsaw bar 35 cm.
  • Chainsaw plastic cover
  • Chain tension adjustment wrench

Assembling the Stihl MS 180 chainsaw after purchase.

The chainsaw is delivered in a box. Immediately, I note that the tire in the package for the 180th is not included in the box, so it is either given separately, or bent and tamped.

Stihl MS 180 chainsaw assembly instruction

Assembling the Sthil MS 180 chainsaw (Stihl МС 180)

  • Unscrew the nuts securing the chain cover and remove it.

Cover bolts MC 180

  • Turn the chain tensioner towards the sprocket (left) until the tensioner aligns with the groove in the housing.

chain tension Stihl 180 1

  • Slide the chain over the bar. Pay attention to the direction of the teeth!

direction of teeth MC 180

  • Place the bar and chain on the saw. Drive links must match the sprocket teeth.

Stihl 180 chain and bar installation

  • Tighten the chain screw until the chain drive links begin to engage in the groove in the bar..

chain tension Stihl 180

  • Then lift the tire at the very beginning and tighten the nuts.

[important] A little tip: you can check if the chain is tensioned correctly in the following way:
Raise the saw by the middle of the bar until the body starts to lift off the surface..
The drive links should be halfway out of the slots. In this case, the chain is not overtightened or loosened..
And of course, the method described in the instructions is valid. Manual for Sthil MS 180
[/ important]

Watch the video on the chain tensioning of the Stihl 180 chainsaw.

STIHL MS170 180 Chainsaw Clutch Removal & Installation