Fixing A Chainsaw That Leaks Bar Oil

Fixing A Chainsaw That Leaks Bar Oil
In this video I show you how to easily fix a Stihl MS211 chainsaw that leaks bar oil excessively.
Oil line is Stihl part number 1139 647 4000
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Easy to follow and thorough step by step tutorials do it yourself (DIY) to help you with your broken lawn and garden equipment including snowblowers.
I do my best to teach you how to easily diagnose problems the fastest, quickest and most efficient way with real repairs beyond just replacing a spark plug. These tips are for both the homeowner and shop owner.
Whether it be a handheld, two stroke, two cycle engine like a chainsaw, weed eater, weed wacker, string trimmer, grass trimmer, line trimmer, hedge trimmer, strimmer, brush cutter, leaf blower, or four stroke, four cycle units like a lawnmower, wood splitter, lawn tractor, snowblower, pressure washer, generator or a ride on mower that needs parts installed or replaced, I’m your go-to guy.
My favorite brands of spark plugs are NGK and Champion and are the ones I recommend.
I’ve been a small engine mechanic for many decades and also run my own repair shop so my videos are loaded with tips and tricks that I have learned and want to share with you. You will also find many tool and product reviews from top brands on my channel as well.
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Due to factors beyond the control of DONYBOY73 “The Small Engine Doctor”, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. DONYBOY73 “The Small Engine Doctor” assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. DONYBOY73 “The Small Engine Doctor” recommends safe practices when working with power tools, hand tools, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of DONYBOY73 “The Small Engine Doctor”, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not DONYBOY73 “The Small Engine Doctor".
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[@donyboy73]

ALWAYS USE HIGH OCTANE FUEL WITH NO ETHANOL TO PREVENT DAMAGE AND COSTLY CARBURETOR REPAIRS ON YOUR OUTDOOR POWER EQUIPMENT!

[@johngrossbohlin7582]

That and using synthetic mix oil that has fuel stabilizers and I've had no fuel related problems.

[@pete_boy71]

pfff..better you buy already mixed fuel,it`s the best for your diy saws....anybody using these toys doesn`t need to mix themselves...aaaand the lowest you can get around here is 95,so that`ll do anyway..lol...

[@johngrossbohlin7582]

@@pete_boy71 For seldom used chainsaws that's probably reasonable. If you have three saws, two string trimmers, hedge clippers and a backpack blower the pre-mixed stuff would get real expensive. When I run my MS261, MS271 and MS461 removing hazard trees, doing TSI, or bucking firewood it's not unusual to go through a couple gallons of fuel. Also, buying the premix would require a trip to the dealer whereas I can get the non-ethanol high octane gasoline at myriad locations. Clearly this is an it depends situation but either way high octane, non-ethanol gasoline and synthetic mix oil (prepacked or self mixed) is way better than low octane ethanol laden gasoline with cheap mix oil in terms of reliability and longevity. For my non-mix 4 cycle engines I use the same gasoline with a little Marvel Mystery Oil for added top end lubrication and detergents. Those engines are reliable and hold up great too.

[@pete_boy71]

@@johngrossbohlin7582 i talked about diy guys using the 211...of course you are right,but where do you get fuel lower than 95 ? and who would use wrong oil? here you can`t even get mix at a gas station..pro`s used to mix themselves,we older ones still do,but the young professionals all use the special for their saw premixed stuff otherwise the saws only last two or three seasons..like everywhere today too much fine tec...

[@MrWkendwarrior]

John Grossbohlin i agree, synthetic fuel when u run many 2 cycle chainsaws, and landscape power tools is way to costly. I did try out a gallon of synthetic fuel, and it ran better than my 92-95 octane mix, but not enuff to justify the cost. I use premium fuel the last 6 yrs on all my gas motors except the tractors/mowers which i use sveral days a week. Does ALL premium gas have no ethanol? Some say yes? Hard to tell at gas pumps near me...i use premium gas, mix w some Startron blue, some Stabil...in a separate marked 5 gal container just for the small motors....not perfect as synthetic mix performance, but affordable and i have less fuel related issues to fix! This year i am slowly migrating to synthetic 2 stroke oil, and symthetic bar oil when i can find it.

[@shadymaint1]

Used to work at a Stihl dealer. Used to use a piece of string to install oil and fuel lines. Feed the string through the tank and out of the fill hole. Wrap the string around the grommet and just pull it into place.

[@wallacejeffery5786]

Good idea

[@CFProton]

Loved how you removed the screws with a 1/4" impact but you replaced them manually to stop any possibility of stripping. Another great job!

[@mrsgbee8246]

Most grateful to you. Today I changed my oil pipe as my still has been leaking for some time now. 64 Yr old woman, never too old to learn. Thank you. Your an excellent teacher. All the best to you and yours.

[@HuckBowlt]

You make repairs look too easy but you are the most informative out of the vast ocean of channels devoted to small engine

[@nicholecrouch311]

Steve's small engine saloon And Dany are the only two guys I watch when I can't figure out why something isn't working correctly I suggest watching Steve's channel if you haven't before these two guys are great at explaining how to make the repairs yourself and do it while demonstrating what they're talking about

[@kevinbyrne4538]

Clear, simple, patient presentation of the diagnosis of the problem and its solution. Great job (as always). Thank you for taking the time and trouble to record, edit, and post this video. Much appreciated.

[@famasmaster2000]

I have this exact saw and encountered the exact problem. This is the fix they did. Now afrer seeing how easy it was, I will do my own the next time around ! Thx buddy

[@garygore1]

Just finished the task - thank you very much for the complete view and instructions, even an accountant got it done with your help.

[@normanking1022]

Thank you donyboy73 for sharing your knowledge in a professional and well structured tutorial.

[@johnreynolds2055]

Short sweet and no bs. Don’t think a better video could have been made. Cheers dude keep it up 👍🏻👍🏻👍🏻

[@jamesmullins3219]

excellent photography & good advice--thanks

[@davidrobins4025]

Very clear video with great description of the task. The little tips you provided make the job go much easier. Thanks.

[@txusizqui5856]

Thanks a lot! Perfectly explained, fantastically edited!

[@thomasgotsikas4733]

You are impeccable and always enjoyable, thank you!

[@57Spanky]

Thanks Donyboy I needed this video. Great job as always

[@NipItInTheBud100]

Great timing for this video! I was just noticing on my chainsaw it has a slight oil leak. Now I know where to look for potential leak points!

[@buckstaffvvile9064]

In addition to being high on information , your videos are great for having no music or idle chatter that distracts. Thanks.

[@simonmorris8651]

Thank you Don, leaking bar oil can be such an annoying curse! Another great informative video, nicely explained and shot, appreciate your effort and time. Also noticed, like others, the care you took to reinstall the Torx bolts with a hand tool instead of just blasting it in with the driver. Nice touch and shows you care 👍👌👏

[@PilotViewProductions]

Great job. Enjoyed watching the repair.

[@gregritter377]

great video and repair I love watching how you work on stihl saws thank you

[@user-nn2zx7xj8u]

You just did my garage floor a big favor, thanks Dony!

[@smartass6071]

My MS 290 stopped oiling. I watched one of your videos on how to fix a oil pump. After seeing your video, I was able to remove and clean the oil pump and blow out all the oil passages and it started oiling again. It only took me about 10/15 min tops. I was able to do it with just the bar tool, T7 wrench and a cotton rope. Thanks for sharing your knowledge.

[@FBall-im8ui]

Just the problem I am having so this video helped and now I'll repair my saw. Thanks

[@congerscott6064]

Thanks for the video, just getting into small engine repair 👍.

[@arthurfricchione8119]

Thanks for the tips Donnyboy73. Mines leaking oil so I will go and check it. Thanks much 👍

[@grahamkechnie209]

This is great. I don’t use my saws much but will be this spring. Was wonder why my new Stihl had so much bae oil under it. Thanks for the vid and $ saved on repair costs!

[@fat_head_Carl]

Well done and informative. Not filled with fluff. excellent how to.

[@garyconstant4234]

Great video as always. Keep up the good work as it really does help people like me out 👍

[@davidrosenkrantz4854]

Thanks Donny: I have the same problem with my older Stihl saw also.

[@lewcore]

super and to the point every video i have viewed!!thanks sir!

[@JoaquinChea]

Wow, I have the same problem on my old Stihl WOOD BOSS 028 AV, I’ll have to try to fix it, Thanks for the tip!

[@petervalaas5037]

Thanks so much for an excellent video which was well shot and narrated! I was able to easily fix my ms211 with a chronic oil leak. Exactly as you said, original oil line was too hard to properly seal.

[@bigviper64]

Another super CLEAN and well presented video! I sure wish your shop was near where we live in Texas!... My saw does leak and I’ll look at it carefully as soon as I can. Thank you for another awesome video!

[@richa7812]

Always very helpful and well presented. Thank you.

[@aleblanc3547]

Thanks, Don. It looks tedious, but easy enough to replace.

[@bradleywatt8729]

Great explanation adapted it to suit my MS250C and oil leak sorted.

[@cdantzer4984]

Well done again dony, thanks.

[@dirtyshirtinfo]

Top notch as always. I have several videos on my channel regarding an MS250 and an MS291. Both were purchased new and I described them as “over oiling”...a nice way of saying they leak. In both cases the problem resolved itself. I’ve come to believe that the machines need to go through a number of heat-cycles for everything to seat properly. Once this occurs oiling could be described as “normal.” Again, this is all a guess.

[@s10m0t10n]

Thank you. This looks like the ideal fix to my leaking chainsaw. It'll save me the cost of a professional repair.

[@toddolson573]

What I'm finding with your channel, is you are more systematic with the approach in explaining the how to and why. Again, nice.

[@TOMA21207]

Great job Dony.

[@st7650]

Hey all right I have an MS660 doing these same thing. Will have to change out the line thanks for posting

[@robertoswalt319]

Nice video. I have put off replacing oil lines or pump seals because they can be a pain to get to.

[@wayneberry8703]

Great job Donny

[@100vg]

I don't have a Stihl, but that oil line is probably common concept on all the bigger chainsaws. Great tip, Don. Thanks! Found this one in suggestions after your *Fixing A Chainsaw That Won't Cut Properly! Step By Step Repair With Donyboy73!* with the bad sprocket.

[@RaleysSmallEngines]

Nice job!! You do a great job wiith your videos.

[@kurtsimmons1587]

I don’t know how many times I’ve subscribed to you. Every time I check it shows I’m not subscribed. At least I keep subscribing

[@clauslundberg9224]

Nice fix - thanks for sharing

[@davebellefleur6312]

Great video. Same issue with my Stihl MS170. Also noticed that the chain isn’t t getting oiled up. Will start by checking the oil line, replacing if necessary and then re-assess if the chain oils up. Thank you.

[@jessel8833]

Awesome video brother -- thanks!!

[@arciefan]

Nice repair. My bar oils fine . It leaks if stored level. I store mine with the oil cap down and let gravity keep the oil down.

[@llithium0]

Good tutorial bro.. thanks for sharing 👍👍👍

[@treebutcher2000]

Good how to video to deal with a very common problem. 👍

[@sbains560]

Excellent repair

[@jezhankinson]

This is a known issue on these model saws, vibration wears the grommet in the hole, stihl make a small double ended barb fitting (plastic) that you just cut the grommet hose off outside the saw, push the fitting in, then slip the cut off hose onto the other end of the barb fitting. It basically just expands the grommet in the hole. Cheap and works well.

[@jeepman012]

Thanks for the Video, great filming too....

[@angels814ever]

WELL DONE... THANKS !!! GONNA GET THE PART ON ORDER!!! =]

[@morebeer4435]

Bought a brand new ms250 used it one time for about 2 hours and now it leaks bad just like this. Guess I must have torn that line. Good vid.Thanks

[@Quinnfix5268]

Great job Don I found on a few of the stihl that the hole on the oil tank where the grommet seats isn’t completely circular Used a round file on the bump on the hole Job done

[@Woodyjims-shack]

Thanks Dony 👍

[@nomansland4811]

Good vid. Solved my problem.

[@samuelhinkle9370]

I have a Husquavarna that leaks bar oil like crazy , Thanks for a path to fix.

[@GrampiesWorkshop]

Another nice repair there Dony!! I notice there are a lot of parts and pieces on the Stihl saw that are plastic. Makes them lighter I guess, but I wonder .. I think saws are being made now so they are throw away when parts wear....

[@garyreid9842]

I have this same model Chainsaw at home in Australia and have had to previously replace that suction hose due to the same leaking problem. Must be a design flaw with the tube . I had the dealer replace the first one , but now will do my own the next time . I loved the way you were able to save time with just shifting the handle to the side using a spark plug spanner. The Stihl workshop manual suggests removal of the entire handle which on this saw is a bit of a pain . Great Vids Dony. Keep em coming

[@garyreid9842]

Donny Would it be prudent for the oil filter to be replaced at the same time or is the filter able to be cleaned and re used ? If cleaning possible would soaking in kerosene be the way to go about it ?

[@kukolino]

Excellent Video !!

[@robertoprrs5]

Muchas gracias, era justo lo que me pasaba en mi sthil ms211. Un saludo

[@rmiller6483]

Awesome video as usual sir. My husqvarna rancher is leaking like that stihl was...👍👍👍

[@ferrallderrall6588]

Common with the 55's,probly source out or cheap out ,saws should not aught ta leak everywhere

[@bear9923]

good info. thanks

[@davegeiger6029]

Your videos are awesome. They have helped me in many ways. I appreciate how you break things down step by step.i was hoping to find a video to help with replacing the oil line on a ms260. For the life of me, I can NOT figure out how to access the oil line on this! I have it gutted down to the oil pump but that's as far as I have gone. I can't imagine something so simple would require this much time to take apart? Do you have any direction on how to do this? Any feedback is appreciated.

[@jasonpate5868]

Thank for the help. MS361

[@sraike]

Great video, thanks! My Stihl saws have leaked bar oil since brand new. May try replacing this oil line but have a feeling they will still leak. Wish Stihl would do better in this area. My Echo and Jonsered saws don't leak so it can be done.

[@pyratebruce]

great job. thanks donyboy.

[@donyboy73]

have a good weekend bruce!

[@petermapp9153]

This video was helpful .My saw is leaking oil....i suspect the hose is the problem after watching this video.I hope the stihl dealer has this part.....thanks

[@geojor]

good stuff Dony ...

[@claypigeon001]

Cheers Dony 👍 I have a 5yr old MS181 that has always leaked from under the tank. Going to get a replacement pipe tomorrow and replace it to see if that cures it. Good timing with the video 😊 thanks.

[@donyboy73]

yes it should help

[@djangofreeman9818]

Very good video!

[@johngrossbohlin7582]

I'd suggest on additional step to this process. Check the oil line hole in the tank for burrs before installing the new line. I had a leaky oil line and found a burr on the tank hole. By removing the burr the grommet sealed properly and the leak stopped. I had this happen with a valve for a tubeless tire on a plastic hand-truck wheel too... removed the burr and the valve stopped leaking. Same goes for leaky fill caps... check the openings for burrs that could keep the 0-ring from sealing properly... Just a few things I stumbled into over the (many) years that others might find useful.

[@payday316]

After using your saw must loosen then tighten your oil cap cause while its been running it builds up pressure you have to let that pressure out so just loosen and tighten your cap for starters mine did the dame thing but after doing this simple thing it fixed it

[@John-rr4zz]

Saws don't necessarily leak oil as such. most of the oil that is on the floor is draining off of the bar and chain and out of the clutch housing. Especially if the oil system is set high on those saws with an oil feed adjuster screw

[@williamemerson1799]

Heck of a lot easier than my MS180. What a PITA! And as mentioned, don't cheap out on the part. First one I did came in a kit from Amazon (China) and a big difference in material. Wasn't pliable enough and wouldn't seal.

[@jensenwilliam5434]

Thank you!!!

[@johnclarke6647]

I also add a slight coating of TB 1184 on the gromett to insure it stays sealed on my saws. I do the same thing to impulse lines and fuel lines, if possible. I do not use it on carburators or carb fittings, because these often need to be removed, occasionally, but on any connection that will be more or less semi-permanent.

[@joepinehill]

Thanks for the video. I have a Husqvarna 41 I bought new in '97. The saw runs well, has good compression but the oil line leaks. I over the years I've replaced the line, so I'm familiar with the repair. However, now the oil line is obsolete from Husqy. Ive tried purchasing an after market, and can not get a good seal. Any suggestions? I'm considering trying to coat the sealing area with an RTV and see if that give a better seal.

[@franciscoluna9596]

Great video as always. One of my saws -028 av - doesn't leak when is in the case, but the problem is it pumps an excessive amount of oil when it is running, and it seems this particular model doesn't have the way to regulate the flow.....would be great a new video addressing this issue

[@gregritter377]

need a question answered if you don't mind you talked about mix the other day and said 47 to 1 is a little better for the saw si how do I do that in us measurements I was thinking of mixing 1.1 to 1.2 gallons of gas to the oil that I buy for me stihl stuff what do you think ?

[@queenstownkid]

thanks don

[@vetterfellow]

Thanks Donyboy, I need to dig it out but that saw looks like the saw I have in my storage shed. Is there a place to order on line chain saw parts you can plug?. I own two saws and I don't even know what brands they are.

[@lourdesalmeida8232]

We love your videos we have a stihl ms340 that leaks bar oil can you give us some ideas

[@paulcurzon8369]

Brilliant

[@mattmidili4350]

Hi Don, just starting watching your videos, great info and tips. Have a couple of questions for you if you can maybe point me in the right direction. I recently got a MS361 saw as a gift and noticed it will leak bar oil out, roughly half the tank after being topped off and after running the saw. I have laid it on its side with the cap side up and it will still leak the same amount. Would go about replacing the line of the 361 the same way as in your video? Two other things, trying to keep it brief. I’ve noticed after the saw has been running/cutting for a good while maybe 30 minutes or so while having the chain brake engaged to move around safely the saw will shut off on its own, not always and even though the engine is still warm I’ll need to start it with semi choke and it fires right back up. Last thing and this doesn’t do it all the time but every here and there with the saw running and the chain brake disengaged for cutting, with no throttle applied the chain Will very slowly start moving. I’ve had other low end saws in the past but this is my first pro saw and I’m trying to learn the tips and tricks. Any input would be much appreciated when you have the time. Thanks.

[@spooncarvingwithtom]

Hey please help! Does the ms 170/180 have a gaskit between the exhaust muffer and the engine block? When I took my muffler off I thought it was strange that there wasn’t a gaskit ? Just muffler, a metal plate and then that just presses up against the engine block?! Unless I dropped it and couldn’t find it? Thank you!

[@jeffvimpeny7693]

I have some questions as I am getting into small engine repair. What parts should I definitely have to work on Stihl and echo 2 stroke equipment. Blowers trimmers chainsaws trimmer etc. a video would be excellent lol. I know magnetos carbs & kits which ones though

[@bluelude2001]

Stihl rep - "it's normal for the saw to leak oil..." No dude. It's not. It didnt for the first 4 years of ownership. Good video Donnie. Thanks.

[@donyboy73]

it is normal for some to leak oil but not as much as this one!

[@bluelude2001]

Yea I'm talking like having to keep the power head inside a turkey roasting dish because it leaks so much lol.

[@bluelude2001]

@Sheri Olson ... k

[@grumpy138]

Mine has been leaking since day 1, I just make sure to empty the bar oil before I store it. Although I forgot to do that the last time I used it, so I had a case full of bar oil when I opened it up this past weekend. smdh.

[@johndeeter9522]

For oil leakage from the toolless oil caps both on the ms211, and larger saws, I have used O rings from Tru Value hardware draws . These have worked very well, are easily available, and are very low priced compared to the factory cap assemblies.

[@StrBADCyperIgwt]

I have a Homelite Ranger 33, I bought used. The Man I got it from couldn't get it to run correctly. He said he tweaked on the low and high speed jets and got them all out of adjustment. Could you tell me a good base to set these screws to so I. An at least get the saw to start, thank you.

[@gilbertogandarilla8507]

Thank you i have same problem

[@dmoore7519]

Carb question: I have this model and noticed the throttle valve does not open fully when the trigger is pulled. It opens 3/4 of the way. Is this normal?

[@timbrown2637]

Could you use this oil line on an ms210 instead of the plastic one?

[@Whitearrow01]

i have a ms 260pro that leaks bar oil excessively. i bet thats its problem too. wonder what the part# for the 260pro oil line is?

[@bobbelsekwol]

So easy, once you know. Thanks.

[@shunamitoryan6285]

THANKS