How to remove the STIHL oil pump 180

STIHL MS-180 chain saw in common use

The STIHL MC 180 chain saw has a mechanical oil pump as the chain lubrication oil supply device. The STIHL 180 oil pump is made entirely of metal and is distinguished by its practicality and maximum reliability. Let’s take a closer look at how the STIHL 180 chain saw’s oil supply system is organized.

Drive the oil pump consists of 2-piece, this plastic gear with a worm gearing and wire lever, which transmits power from the sprocket to the drum on the worm gears.

One of the main defects in the oil saw, it is defective threading on the plastic pinion oil drive, so at any opportunity, you need to keep under control its wear and quality of thread.

The lever is firmly mounted to the gear train and they are supplied as one piece. The tip of the wire lever has a corresponding bend for the best grip on the drive sprocket. Drum has a special groove for installing the drive unit.

The STIHL 180 oil pump is made entirely of metal and is not designed to be dismantled. The pump housing has an oil inlet and a groove channel that brings the oil from the oil line directly to the pump. The mechanism is fitted into the housing of the STIHL 180 chain saw.

When the engine rpm increases, the drum. sprocket begins to twist the worm gear pinion behind the wire lever, and it again forces the oil pump plunger to spin, and as a result oil begins to be pumped through the oil channels to the chainsaw bar.

In the work of the accounting system, takes a specific role and the oil pipe chainsaw, at the base of which is the oil receiver. The oil receiver is also a filter. There is a rubber expansion on the second side of the oil hose that fits the hose into the STIHL 180 chain saw just behind the oil pump.

As everyone knows, in this business of the world there is nothing endless and over the years what is left to do our customer has to fix. The STIHL oil system in the mc 180 is no exception, and has its own special malfunctions. Let’s look at them in more detail.

Signs of malfunction complex accounting software lubrication, the following:

  • The chainsaw chain is completely dry and not even shiny;
  • No oil escapes from the oil tank;
  • The chain stretches quickly and this situation happens all the time;
  • The guide bar moves to the side while sawing;
  • the tire heats up and in the area of the drive sprocket, there is melting paint.

Why Chainsaw Oil Leaks

Construction and Dacha in plain language

STIHL STIHL 180 chain saw oil supply repair

The STIHL MS 180 chain saw is an indispensable tool for cutting wood and doing other jobs in wood. It is one of the most widely recognized gardening devices that is armed with functionality.

The tool weighs about 4 kg. The power reaches 1.5 kW and the bar length is 35 cm.

It should be noted that the semi-professional device for this saw model received an electric ignition and a fairly sharp chain tensioning. saw chain from a chainsaw. understand why it leaks: Why does oil leak from underneath? The STIHL MS 180 has two tanks for petrol and one for oil.

One of the main features is the reduced vibration.

This result is achieved thanks to the 4 shock absorbers. It is no secret that the highest shock absorption has a harmful effect on human health, and in Europe it has long been fought.

It should be emphasized that without the help of others to disassemble this saw without special instruction is not better, in this case it is better to entrust the device masters.

STIHL MS 180 oil supply repair

The owners of this model of the tool should be ready to face such a nasty moment as a leak of oil for chain lubrication. It is definitely not coming from the chain, it is leaking from under the liner. Oil leaks from the start. I don’t know. Oil can leak while working with the equipment and even when just lying around without doing anything.

READ What kind of gasoline to put in a STIHL 180 chain saw?

What is the reason?? The thing is, the oil is leaking because of tightness issues in the area where the hose from the oil tank and the pump connects.

To solve the STIHL MS 180 oil problem you need to disassemble the machine.

  • Check the hose, if it is damaged, replace it with another. Or try to degrease and wash the hose and put on a sealant, it should work.
  • Check the oil filter for breakage, clean it (if you filled it with used oil)
  • It may also be caused by a clogged choke, with all the vacuum in the fuel tank appears and affects the fuel supply. The problem may be in the carburetor adjustment and may be clogged ducts or air filter, you need to carefully clean the filter and carburetor ducts.
See also  Adjusting the carburetor on a STIHL STIHL 180 chain saw with your own hands

Little Tricks of the Chinese chainsaw/oil leaks HOW TO REMOVE.Little tricks Chinese chainsaw

The video covers disassembly and proper assembly of the oil pump and sealing the oil supply pipe

If there is no oil flow to the chainsaw chain, Exactly because of this Why is the oil leaking. Why is the chain oil in a STIHL STIHL 180 chain saw not lubricating? How to.

READ Not lubricating on a STIHL chain saw

How to fix chain saw oil leak.

One case of spontaneous leakage of lubricating oil

for chain saw chainsaw. Repair.

In general the main problem is bad oil.

It is not recommended to pour oil into a chainsaw that is not intended!

How to fill STIHL 180 chain saw oil

  • Do not spare money for the original oil 2-stroke STIHL HP oil is a little more expensive but cleaning costs even more.
  • The fuel must be of good quality. including Mobil 1. and three-phase is good for lubrication.
  • Inexpensive choices are 15-40 mineral oil, 10-30 in winter. M8 or M10, for example.

Always be aware of your personal safety when working with a chain saw.

Remember that chainsaws can be affected by the quality of oil you put in. Benefits of a Husqvarna 240 chainsaw, Why gasoline leaks from a Husqvarna 240 chainsaw? Low-quality oil can be the cause of inefficient use of a tool and have a negative effect on parts.

Check and clean the STIHL MS 180 oil pump periodically to ensure that it runs smoothly. Oil leaks from a chainsaw. Here’s an overview of why the oil in your chain saw. That way your oil supply will be fine.

STIHL MS-180 carburettor

STIHL MS-180 carburetor has one idle speed adjustment screw. The no-load restrictor is not adjustable, i.e. it cannot be changed.

READ What kind of bar do you use on your chainsaw?

It is necessary to know the basic rules for setting the no-load speed:

1) Check the air filter, if necessary replace it;

2) Check the spark gage and if necessary replace or clean it. You can then switch the engine on and preheat it.

Repairing the STIHL MS 180 carburetor

Repairing the STIHL MS 180 carburetor is a very difficult process. Note that when repairing, there is almost no risk of sudden changes to the cylinder piston group.

If the chainsaw does not start, then apply the following steps:

1) Open and close the gas tank cap;

2) it is advisable to remove the spark plug and then drain it;

If after that there are no positive results, it is better to check the condition of the air filter, the gasoline process and the functioning of the spark plug.

This problem is related to the valve (trapdoor), which is clogged, and as a consequence of this a vacuum is formed. All about chain saw repair with your own hands I don’t know why I’m leaking oil from my chain saw. To correct this inconvenience, it is necessary to clean the valve with a needle.

Systematically check the filter, if the muffler is clogged, then the device will not be able to give the power that it is built in.

If you bought your chainsaw with a warranty (there is usually no other option), get it in for service immediately.

The STIHL MS 180 chain saw is very easy to operate, has good ergonomics and offers a number of tangible advantages.

Performance and technical features

As for the technical and performance characteristics of this chainsaw, they are in many respects superior to all modern market analogues. To learn how to properly run in your chainsaw, see here.

The design of the STIHL 180 chain saw is made in such a way as to achieve maximum performance, while not causing any discomfort at work. The unit is completely vibration-free and does not fatigue the operator’s hands.

Handle, which girdles this tool, tightly “sits” on 3 shock absorbing blocks made of rubber, which is also very convenient for using the chainsaw.

The STIHL ms 180 chainsaw has the following specific features:

  • The maximum displacement is 31.8 cm³;
  • Nominal weight is only 3900gr.;
  • The power level is 1.5 kW / 2.0 hp.с.;
  • The bar is 0.35 м.;
  • Characteristic Oilomatic chain with 3/8″ pitch (PMC3);
  • The tank has a capacity of 250 cm³;
  • Idle speed is 2800 rpm;
  • Specific weight is 2600 g/kW;
  • Vibration tolerance 6.6 to the left and 7.8 m/s2 to the right;
  • Sound pressure is 97.0 dB;
  • 106.0 dB rated sound power.

Simple in operation, does not require additional care, except for timely lubrication (if you do not follow the lubrication in time, it is possible to “kill” both the tire and the chain itself).

It is worth noting that the two-stroke engine of this unit is arranged in such a way that it runs on a gasoline-oil mixture. It is necessary to add only quality oil in gasoline for STIHL chain saw. information on STIHL chain saw oil is available here.

The quality of these operating elements will have a major impact on the performance and durability of the entire system.

The STIHL 180 chain saw instruction manual states that all the following instructions must be followed

This is important for warranty repairs and to extend the life of your STIHL chain saw. It is essential to use good chain oil

STIHL 180 chain saw assembly

Reassembling the STIHL ms 180 saw is easy enough, the main thing is to adhere to the following algorithm:

  • Install the piston on the connecting rod with the arrow on the piston facing the STIHL 180 and on the left hand side of the piston on the crankshaft for the flywheel;
  • Carefully insert the piston back into the cylinder, the place for fixing the coil should be on the side where the flywheel is installed on the crankshaft;
  • Install the bearings, oil seals and circlip on the shaft and lower the complete assembly into the cylinder seats;
  • Next, degrease the place of installation of the crankcase and the crankcase itself, then lubricate the sealant and having installed in place screw the 4 screws fastening;
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To reassemble the STIHL 180 after you have assembled the engine, follow the reverse order of disassembly

It is important to treat the process carefully and do not forget to install the rods on the carburetor, and connect the ignition wire

If you want to see the STIHL 180 disassembled in the video below, it is for inexperienced users and shows the whole process in detail.

If you have some experience disassembling and reassembling your STIHL 180 chain saw is quite easy. remember to clean it well and take your time before you go. To keep small parts from getting lost, you need to use containers in which you can place the parts in the process.

Tips for STIHL chain saw repair: How to do it yourself

STIHL chain saws can be repaired by the user because of their simple design. Proven in the construction segment of the tool has a power of 1400 watts, engine capacity of 31 cc. cm.

The tool has excellent recommendations, popular with users. Reasonably priced and of high quality. However, the operation of the chainsaw is occasionally accompanied by breakdowns.

How to correctly dismantle a STIHL chainsaw

STIHL chain saws must be prepared before any disassembly. Prepare a comfortable table, dry rags, brushes to wipe parts gently, clean water, gloves and a dry place away from fire

It’s also important to be aware that the machine must be free of fuel. It is best to work it out rather than drain it and let the saw cool for a few hours before disassembling

Remove the chain, the bar and the side cover; using a compressor if available, brushes, a dry sponge. clean the STIHL of oil, dirt, dust, spillage, sawdust

remove, stihl, pump

Pay special attention to the drive sprocket. it may have a lot of sludge and dirt on it; if it is hard to remove big clogs of dirt mechanically you can use clean gasoline; look for three rubber shock absorbers and remove the crank. This can be done by removing the plugs

Using a screwdriver, first squeeze out the upper shock absorber, then the one at the rear handle; disassemble the rear part of the handle by unscrewing two screws. So we disconnect the rod from the gas trigger (it connects the carburetor and the gas trigger, which is in the handle); at the moment of locking the handle only on the shock absorber. we as if unscrew all the “insides” of the saw, and breaking to the side. remove the last lock on the type of rubber band; starter is removed by removing the upper case cover, and unscrewing the 4 screws on which it is attached. Further, we remove covers of tanks. fuel and oil. Under the starter is often a clump of dirt, sawdust, which should also be cleaned, a 13 head will contribute to the unscrewing of the flywheel. Block the crankshaft from twisting by unscrewing the candle, namely through its hole fix the piston lock; on the fact of blocking the piston. you can unscrew the flywheel nut; pre-disconnect the clutch. disconnect the star drive. Lock washer is removed from the grooves, and the needle bearing; disassembly of STIHL 180 chain saw involves removing the clutch with a 19-size head. Next, remove the deflector plate and the oil pump drive, disconnect the ignition wires and air damper rod from the part referred to as the engine lever, and remove the lever itself. Next, unscrew the nuts carb and air filter with a handy head to 8 with an extension cord (if available); unscrew 2 nuts and pull a little toward yourself. you’ll remove the next part, the muffler; in the bottom of the saw is 4 screws that hold the engine. Delicately removing it, do not forget about the rubber pipe of the carburetor, which can get caught.

Disassembling the engine of the machine is a separate scheme, but in general, how to disassemble the chain saw STIHL. we reviewed. Regarding other popular models, like 250, the procedure is similar. Like other parts, you can always order a file for sharpening chains at KosiKosa.

How to disassemble and reassemble your STIHL saw

There are a few more nuances to taking a STIHL saw apart, including the prohibited use of screwdrivers, bolts and other improvised means to hold the handwheel in place. Doing so can cause the blades to break. Only clamp it in the way shown in the diagram. On how to disassemble STIHL 180. we told you, but there are nuances of reassembling the chainsaw:

  • on the connecting rod install the piston, to the left of which is the side of the crankshaft, where the flywheel will be;
  • put the piston back in the cylinder. The elements such as retaining rings, bearings or oil seals are placed on the shaft and placed in the correct place on the cylinder;
  • Degrease the crankcase and its seating, put sealant on it and fasten it with 4 screws.

These are the nuances of the reassembly of the engine, which may cause difficulties (if you disassemble it), all other parts are assembled in reverse order step by step. Do not forget to control the installation of the rod on the carb, the connection of the ignition wire. You can also watch all the nuances in the video. Store gasoline tool KosiKosa is pleased to offer all their knowledge to each of our reader and buyer.

See also  STIHL ms 180 how to tension the chain

STIHL MS 180 is a reliable and unpretentious tool, but sometimes it needs repairing like any other piece of equipment. In this article we will consider how to disassemble a STIHL mc 180 chain saw, which is necessary in case of an overhaul of the engine.

Lubrication system malfunctions and how to fix them

The basic faults in the chainsaw oil system can be divided into two basic types, these are general faults inherent in all chainsaws, and individual faults, which may differ depending on the type of pump and worm gear installed on a particular model. Let’s start to troubleshoot in order.

It is forbidden to use a chain saw if the chain is not lubricated. This is detrimental to the tire, drive sprocket, and chain, and can result in serious repair costs.

remove, stihl, pump

Signs of a faulty lubrication system and how to check it

  • Chainsaw chain is dry and has a pale, glossy appearance.
  • The chain is stretching relatively quickly.
  • The bar is very hot and may even partially melt the paint.
  • Oil from the tank hardly ever goes away.
  • Cutting performance on a sharp chain has decreased

all these signs show that the lubrication process is not working properly. To check the oil supply by the lubrication system, remove the side bar of the chainsaw and start the chainsaw. Then you need to increase rpm a little watching the place where the oil pipe ends. If it is coming in, it is probably not enough oil for proper lubrication and you should clean or replace the filter and if possible adjust the oil flow. In the case when oil is not coming in, the problem is more serious and requires further diagnostics.

There is a way to check oil flow without removing the tire. To do this you need to point the end of the guide bar to e.g. a freshly cut wood from the cut side and increase the revs as much as possible, keeping the end of the guide bar not more than 10 cm away from the wood. If oil spots start to appear on its surface it means that the oil is being supplied.


Once it has been determined that there is no oil supply, further diagnosis is only possible by completely removing the oil system. Of course, in some situations replacing the filter helps, but this is very rare.

Some actuators are only accessible after it has been disassembled, so if you are not an experienced chain saw repair mechanic, it is best left to a professional.

The most common faults

  • Oil hose breakage. It can sometimes be detected by visual inspection as well. The problem is solved by replacing the defective part.
  • Lack of thread on the shaft of the oil pump, replacing it will help.

Individual failure of the STIHL MS 180 lubrication system

Considering that the STIHL MS 180 is one of the most common chain saws, we’d like to focus on a particular problem and describe how to fix it without changing parts.

On the STIHL MS 180 chain saw it is fairly common to find that the oil pipe from the oil tank leaks into the housing of the saw. You can tell the problem by the grease leak on the bottom of the tool.

To fix the problem you need to remove the chain saw handle, remove the hose from the landing hole, clean and degrease. After all these manipulations put sealant on hose seat and install in chainsaw frame.

remove, stihl, pump

about troubleshooting and full diagnostics of STIHL chain saw lubrication system, you can learn by watching video, which step-by-step captures the process of disassembly and repair of the lubrication system.

Tags: STIHL chain saw repair

Комментарии и мнения владельцев 40

yesterday the crankshaft bearings got jammed on startup for some reason. I disassembled it, it was dirty and everything, washed it off and lubricated it. everything started to turn. reassembled in reverse order. Saw won’t start, spark is on, gas is flowing. there’s a BUT. assembled with clear silicone thread sealant. Reassembled and started to drive in about an hour. is silent. no oil under the spark plug as well. maybe it won’t start because of poor sealing? the saw was new and only worked 5 times.

Dirt in the bearing means dirt in the gasoline! I don’t know, try another sealant.But that’s probably not the reason!

in the first part of the photo you can see a bottle of oil, 80% of it is faulty and that’s why the scuffing

The color of the container print quality. Well, the video’s a mess right off the bat.

You’re the “expert”! 1) The picture is not visible on the label, and you saw the quality of printing and identified a fake, or rather immediately saw) 2) Bottle color can distort the camera as you like, depending on the white balance setting and the sensitivity of the camera. 3) Oil was not bought at the market but from an authorized STIHL dealership!

they even repair chainsaws here))). They say it’s a car site. I also have a STIHL, 290 meters, and disassembly to change the oil hose

Nice chainsaw. I have been running since 2008 and have no problems. I saw about 12 cubic meters a year to heat my house.

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