Check Your Chainsaw Piston and Cylinder For Scoring
ฝัง
- เผยแพร่เมื่อ 30 พ.ย. 2017
- Check this before you waste any more money. Decide if your unit is worth repairing or not!
Buy a compression tester here ---- amzn.to/2jGmoOC
Click here for my website--- www.stevessmallenginesaloon.com/
Click here for my Parts and Tools Store---- www.amazon.com/shop/stevessma...
If I saved you some money with this video, please consider supporting my efforts with a donation----- www.paypal.com/cgi-bin/webscr...
Don’t forget to SUBSCRIBE here---- / @stevessmallenginesaloon
Don’t forget to click the 🔔 to turn on Video Notifications for more money saving videos, featuring all the top brands like Stihl, Husky, Husqvarna, Echo, Honda, Briggs and Stratton, John Deere, Craftsman, MTD, AYP, etc.
Learn how to properly fix or repair your own outdoor power equipment if it won’t start, bogs out, won’t rev up, chain or blade is dull and doesn’t cut good, needs sharpened, or simply just runs poorly.
Simple and basic, do it yourself (DIY) tutorials to help you with your broken lawn and garden equipment.
I do my best to teach you how I easily diagnose problems the fastest, quickest and most efficient way.
Whether it be a handheld, two stroke, two cycle engine like chainsaws, weed eaters, string trimmers, grass trimmers, line trimmers, hedge trimmers, strimmers, brush cutters, leaf blowers, or four stroke, four cycle units like lawn mowers, pressure washers, generators, ride on mowers that need parts installed or replaced, I’m your guy.
I’ve been a small engine mechanic for many years so my videos are loaded with tips and tricks that I have learned and want to pass on to you. I want Steve’s Small Engine Saloon to SAVE YOU TIME, FRUSTRATION AND MOST IMPORTANT, MONEY!
If you Google your issue, problem or symptom, you may just see one of my videos pop up! If you have an idea or suggestion for a video, please fill out this form---- www.stevessmallenginesaloon.c...
Disclosure: This TH-cam video is provided for informational purposes only. Steve is a qualified small engine mechanic and is working in an open and fully ventilated shop for the purpose of making this video. Small engines should be operated outside in fully ventilated areas only and it is important that you wear the appropriate safety gear. If you choose to try one of the suggestions made in this video, you do so at your own risk. Please ensure that you take all proper safety measures before attempting any project. - แนวปฏิบัติและการใช้ชีวิต
![THE TOYS x NONT TANONT - ดอกไม้ที่รอฝน (spring) [Official MV]](http://i.ytimg.com/vi/pPa1d5cC8M4/mqdefault.jpg)
Buy a compression tester here ---- amzn.to/2jGmoOC
Click here for my website--- www.stevessmallenginesaloon.com/
Click here for my Parts and Tools Store---- www.amazon.com/shop/stevessmallenginesaloon
Hii
Hello
Bolo
Steve gives out literal tons of free valuable information years on end, then apologizes lol. Truly a gem of a human being.
Steve another good quick point to include in this video is mentioning the two most common reasons piston/cylinder scoring and seizure happen and that is number #1 bad mix or straight gas, this will toast an engine immediately but the second reason is much less known and it happens gradually over time and it is number #2 cold start n use, never fire up a saw and immediately start cutting with it because the exhaust side of the piston heats up and expands much quicker than the cylinder and if you go wide open throttle under load when it is still cold you will get metal to metal contact between the exhaust side of the piston/cylinder which will cause micro scoring each and every time you do that so when starting up a saw let er warm up for a good 15 seconds or more before ever touching wood, the better warmed up it is before starting the cutting the less immediate wear happens on these parts and believe it or not if you properly warm up these engines before cutting many times they will last 5,10 and maybe even more years under heavy use. Good quality mix 40 to one and proper warming up period will help make a saw engine last a very very long time, given that it is a brand name to start with such as Stihl, Husqvarna, Echo, etc etc.
Love your channel! "I won't mention Rick's name" haha
Thanks Buddy..
Well ... he didn't say his last name but it's a fairly small area. Still funny!
lol
Ha!!!!!!
Hii
"Everyone knows where the muffler is ... it's where the smoke comes out."
LOL, I died after hearing this.
Right on...
I owe you a beer 🍺
I thought my Stijl MS 181 was fried and watched your video on how to start taking it apart.
We were just about to buy a new one tomorrow for £315 a so I thought I had nothing to lose in taking it apart.
Went to take the spark plug out to check the piston like you instructed and found the spark plug had worked it’s way loose and was just flopping about.
Tightened it up with my fingers and it started straight up.
Seems that you have saved me £315 - I guess that’s about $500.
Thank you from the UK 🇬🇧
You're Welcome...
Wow! You`re a real professional, not only in mechanics, but as a presenter...thumbs up my friend. Really educational and your pictures are awesome. Keep up the good work.
Thank You...
200% agreed with that comment.
Can't believe we did not watch this video sooner, great thing to bring to the attention of your subscribers and others watching. A tip from Eliminator Performance always check the head bolts on the cylinder head also. We have had a number of chainsaws that would not start only because they were losing compression from loose head bolts and even had one chainsaw where one head bolt had come completed unseated and fallen out. This is now standard procedure on all two stroke equipment since it appears the vibration has caused these head bolts to loosen off.
You have saved me a ton of money and headaches, and your videos are very entertaining. You also introduced me to Buckin's channel. Thanks Steve! You are a great man!
You're Welcome...
Well Steve I have no complaint. Your videos benefit so many of us, plus the entertainment value.
Besides I don't think this video was out of sync. Everything you just showed us is material I received from you before... some here and some there.
So I am happy. Just kerp doing what you have been doing.
Oh and thanks for having your neighbour Smith on your show.
I am reorganizing a very small shop. I drill all my ax handles so they can be put on a nail and not laying around. After watching you and BRS I said, "I can hang axes too!"
Thanks so much for this! It happens that my two saws are exactly the makes and models as your examples. And the Poulan is calling for exactly the inspection you describe, so super timely! This was the most useful 14 minutes I've spent in quite a while!
Right on...
One of the most helpful vids I've ever seen on this topic. Deciding whether to toss some stuff that has only 50psi. THANK YOU!
Glad it was helpful!
Glad you are doing a 101 class on these little engines. A lot of folks just need the basics to get started. I've saved money and equipment through my learning career. And you have taught me many things about these small 2 strokes I should have known, but didnt... Thanks!
Glad to help
Steve. Thanks for explaining things in simple terms. The speed that you talk and the way you deliver your videos is exceptional. Im currently learning small motors and my instructor make this video so hard to comprehend. If your ever in Australia... beers on me.
I appreciate that!
Extremely helpful Mr. Steve. Awesome videos. You've explained it so plainly, that you make a perfect teacher. I've learnt so much while watching your videos on 2 stroke engines. Now I'm able to repair, restore and troubleshoot weedeaters. Thanks to you. God bless you 😊
Wow, thanks!
Steve... that was an excellent presentation, clear, precise, and easy to understand. The photography was spot on! Thanks for another great video,
Thanks John...
This is golden!!!
I just lost out on $50 dollars for this.
Couldn’t figure out what was going on.
BAM!! I just so happen to miss this video snd found it late
Trying to help fix a buddies Stihl. Service said it had “scored pistons” so I thought I’d learn more. Knowledge is power^3. This is such an awesome video. I do engineering of several types (electrical and electronic) but I don’t know engines except basics. This was an awesome watch! Subscribed immediately. I love you Canadians! From Iowa USA! 🇺🇸 🇨🇦
BTW if they would get the bright idea to plate those pistons and sleeves with PVD, TiAlN or TiN that would never ever happen ever. I’m surprised no one does that with today’s technology. It wouldn’t add much cost and would save them a ton on warranty’s and us too after it runs out.
Thanks Steve, I did waste 4 hours trying to start. Will be buying another chainsaw and this this for parts.
Your channel is the best that I've found when it comes to this!!
Right On...
The Walkers are absolute geniuses with engine work. Long time no see, hope all is well with you and the family Steve! Stay safe out there
Good tip I bought a tester 40 years ago to use on a car motor it is worth the money to check saws and blowers with.
Thanks! I just got an old chainsaw yesterday. Even if out doesn't work I'd like to experiment with it. I saw your other video first where you referred to this one and I'm glad I watched it. Thanks a million.
You're Welcome...
Thanks Steve, looking down a 266 SE right now. Fells like really low comp. but fun to fix the old one up. Cheers, Jon
Steve I think you are the best I wish I could fix weed whacker and lawnmower like you
Thanks Steve for How to fix a chainsaw that wont start & laying it out in order. I got a free chainsaw that was 20+ years old, wouldn't start So found your site... after putting a carb kit in it. Checked the cylinder & piston & they were worn with about 70Lbs of compression. Went through the rest of your steps just for fun & realized I still have a lot of good parts for another project . Thanks again.
Glad to help
A big thanks all the way from Scotland. Long story short you educated me enough to fix my chainsaw, luckily i think I'd added too much oil to the mix, piston was still in good condition, changing the fuel and cleaning spark plug done the job.
Nice work!
Really good explanation Steve on how to determine a compression issue. I really liked your informative video. Obviously you look at this from a small engine mechanic's viewpoint on what a customer should pay to repair a machine versus just buying a new one. But this video didn't really help me with what I was hoping to learn. I have a Sthil HC56C hedge trimmer. I already know I have a bad piston and I know that it is not cost effective to pay my local dealer to repair it. But I want to repair it myself. I already have the replacement piston and cylinder. I was hoping to find a video that actually shows the DIY way of replacing a piston. No knock on your video. It was great for what it was but it came up short for what I was looking for. You obviously know what you are doing! Peace Brother!
Thanks Steve I will definitely put my dad’s chainsaw on the compression tester it’s definitely scored but still runs .
About that time when I sit down and open a cold one, this is the best show for that! Always good content! I’d like to see one and hear your opinion on over bore kits for pro series saws.
This is by far one of your greatest videos. Bravo!
Thank You...
Not gonna mention Rick’s name, lol..... love it...
hehe
Hahaha
Hey retired firefighter here and I really enjoy your channel. I know my saw enjoy's you also, lol. Take care and God bless
Thank You...
10:47 "I'm not going to mention Rick's name" 😂
LOL!
Saved me hours of fiddle farting with this video. Thanks! In 5 minutes I had diagnosed a heavily scored piston with this video! Well done
You`re Welcome...and Thank You...
Watched this a few days too late for me (I bought a new carb which did nothing)...but great video. Far more insight than 99% of what I looked at before. Only thing I can add is hold the rope and see how slowly the saw drops - I can't even pick mine up. That will give some idea of the compression
Right on Buddy...
Thanks Steve, you just verified what was told me yesterday about my remington chain saw.
Good to hear
Great videos man...I catch myself watching a lot of them here at work and even at home out in my shop while I'm tinkering around. Thanks again and keep 'em coming for us here in North Central Florida! 🍻
That is awesome!
I currently have a 5 month old Husqvarna 395XP in my shop with a completely destroyed piston. Actually found pieces of the piston in the muffler. I'm pretty sure this one is worth fixing. Wrist pin needles are good, crankcase innards look and feel good.
Hay Steve I love your videos and your whole beer thing. You are a very knowledgeable person and I want to thank you for all your help,,, ok quick story family member dropped off three chainsaws so bought three carbs. Change carbs one can’t get started other runs very erratic even after tuning. Moral of story two bad pistons lol. Thanks again Steve
You're Welcome...
Great video thank you! Now I know what to look for. I’m running in to the issue of my chainsaw not starting, it does when it’s choked, but when I give it gas it dies. Or it would rev real high then die. I found your other video of the “crickly” diaphragm fuel filter that I could also check.
excellent advise! I'm over from the channel BC Truck... he was gushing over your channel today. Keep up the good work!
Thanks buddy...
Awesome video Steve. Keep up the good work. Making the world a better place one video at a time ! Thien - From Hamilton Canada
Thanks, will do!
Steve! Like the videos. Big help. Pistons look good on my 2 saws. Stihl ms 250 and husqvarna 41. Neither is running right. Going to keep watching your videos. Thanks
You're welcome...
Thanks very much for this video Steve. Was very helpful in more than one diagnosis. Thanks again for putting it up and spending your time !
You're Welcome...
Happy belated birthday sir!! Humbly thanking you for these!!
Just started a side business to my garden maintenance job fixing 2 stroke machines , first mistake on my first customer buying a carb kit when its piston is shot . I can get it to run at full speed but wont idle at all .
Lesson learnt , 1st check : compression .
Thank you .
You're Welcome...
Steve, Thanks for all the info. Now have to decide if I am going to try and repair the free! Stihl MS311 that I was given in a bucket! Really came in a 5 gallon bucket! At 79 I have time and energy to try it. Might be fun!
Go for it!
I bought a very nice MS271 locally that had no compression for 100.00, found an excellent piston, cylinder and crank with very low (2) hours on ebay for 120.00 and now I have a very nice chainsaw. For a little more, I probably could have bought a used MS271 online, but then I wouldn't know it's history or what shape the cylinder was in, plus the shipping would have drove the price up. The old cylinder that I removed is probably salvageable too, so I can use it for another build. BONUS: It was fun doing the repair and it brought me satisfaction! (looks like that bad cylinder on your bench is from a MS271).
I have the same ms 230 you have, I had it 10 years now, I just changed the plug in it the first time this summer, it runs perfect no issues, I use Sthil oil and premium fuel and I cut 5-6 cords of wood every year, I guess doing maintenance will make a saw last a long time.
Right on...
good one Steve.....compression compression compression, #1 thing to check on any engine.....2 and 4 cycle.
Thank You...
I've heard Walker's Saw Shop is legendary , I'd love to visit on vacation one day. Love your vids Steve , thanks.
Thanks buddy. Im working on a Walkers video as we speak....
I am really looking forward to a Walkers video!
....great DIY video Steve......thanks for posting....I am currently restoring a classic Stihl 026 that was never taking care of properly....I took off the muffler and looked at the piston...it has a little scuffing, but not bad and the rings are free...moveable.....I took your advice and ordered a compression gauge...waiting on delivery....I'm hoping the reading is over 100 psi, but if not, I will replace
the cylinder and piston....thanks again for a great video that gives me the confidence to do this myself...keep the videos coming.. :)
Right on Kenny!
Hey steve i just checked my year 2000 stihl 029 super through the spark plug and its as smooth as a whistle inside. Thank you for this video.
You're Welcome...
Thanks for all the great tips on troubleshooting small engines. I have a husky 570XP that runs fine, piston and cylinder looks fine. I was curious about compression so I got a tester... Pulled and pulled, came up zero. Thought maybe the tester was bad. I broke out my 40 year old craftsman press on tester. I was able to make 25lbs...I knew that the crank seals were good.. my suspect was the decomposition valve. I pulled it and found the rod was bent, so it would not make a solid seal. Must of been enough to run, but I’m sure it would have caused a major problem if not addressed. New valve is on order. Thanks again for the money saving tips. Guys with big saws with the Decomposition valve need to check that it is functional properly during the compression test.
You're Welcome...
From now on, I pop a cold one before start working on a project, cheers 🍻
If you have a scored piston but the rings have not become stuck you can restore some of the compression by running 30 to 1. They will often run for a long time and give good power if you cannot afford a top end kit.
Sounds reasonable as have actually poured a little 1/4 - 1/2 tsp. regular motor oil through the spark plug hole of a saw with scored cylinder. Will temporarily increase the compression enough for the saw to start. More of a troubleshooting method for us home hacks who don't have fancy compression testers, scopes, do not want to tear the muffler off for a look inside. Reason being of course when the saw stops will not restart without given another dose of oil.
@@markbaker1843you need a compression tester every small engine I've ever touched other that those ezstart caps lol. They all have a very hard pull you feel every stroke of the piston chainsaw and other hand helps should hang when you hold em by the pull chord. If it don't hang then it doesn't have compression
Dad you mean on this little hanging technique could you explain more please😊
This is great. Appreciate the fact that I didn't know that the piston (without oil) would get hot enough to melt and bind the rings... in addition to scoring,
Right on
Saw this video before. Had to come back to get the link to the compression tester.. :-) Thanks!
You're Welcome...
Anybody else wish they would have watched this before rebuilding the carb? ✋thanks for the great info Steve.
You're Welcome...
Aloha and thank you. Just ordered the compression tester you recommended 😊
You're Welcome...
Really good video there av just done a carb partially rebuild on my 17 year old stihl 320l blower and av not checked that a never thought am learning as a go I have however checked spark so before a refit the carb am hoping it will be ok am going to get a compression tester watched a lot of videos on you tube but yours R far the best also love it wen you say any beer will do or am useing Budweiser today just great !!
Thanks very much Johnny and cheers from Canada....
A big thank you, you save me Time and a lot of money. Your explainations are very clear.
You're Welcome...
Thank you very much. I learned a lot and it will save me time and possibly money on trying to get a 30 yr old chainsaw running.
You're welcome, and good luck...
The saw looks brand new. The pull handle does move the piston up and down. In fact, the thing tries to pull your arm out of it's socket when the cord retracts. So my next step now that it's warmer, is to give it a shot of starter fluid and try it again. But, from what I have read- if anything is subject to failure it's the "solid state" part of the saw. I'm guessing that the solid state part is the ignition. So we'll see, but I agree with you, I'm not giving up on the saw until it proves to be too expensive to repair.
Great video !! You are absolutely right 👉 if the piston and or the cylinder wall is scored up 👆 then don't bother with it unless you are going to fix that problem before you do anything else! I have a poulan just like the one you showed on here , it looks new but the side of the piston by the exhaust is slightly scored up , also have a red craftsman chainsaw just like the poulan and it cranks and revs up but low compression , and it's quirky like it don't wanna idle , then you have it on the ground after cranking it and letting it warm up , revving it up 👆 some and you pick it up off the ground to walk to the tree and it dies !!!??? I'm thinking low compression and bad crank seals or air leak at base gasket or carburetor intake boot ! Bottom line for a chainsaw to run properly the case must be leak free and the cylinder piston must be in almost brand new condition also of course the carburetor must be adjusted and working properly , sounds like a no Brainer but actually the seals can be the culprits a lot of the times ! Now for some cheap aftermarket piston cylinder kits !
I have a husqvarna 142 e series and has a scored cylinder on the exhaust side it has good compression when I pull and it always starts right away
Steve another GREAT VIDEO. THANKS AGAIN FOR TAKING THE TIME TO MAKE SUCK COMPLETE :clear :easy to understand even for me. Lol. I think you’re the best on all of you tube. SERIOUSLY I DO. HAVE YOU EVER WORKED ON ANY OF THE BRIGGS ALL PLASTIC CARBS YETT. I WOULD LOVE TO SEE A VIDEO ON CLEANING AND REBUILDING THEM. THEY ARE ALL PLASTIC CARBURETORS. THANKS AGAINN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Hey Steve.... if shops usually spend only 5 mins to determine if something is worth fixing or not then why do they charge 30 mins to 1 hr MINIMUM for their shop time just to look at it? You walk in the door already knowing you have to pay them 30 mins to 1 hr for their time but their time is only in reality 5 mins. Doesn't seem fair but thank you for helping us out and saving us money by telling us what to do BEFORE taking it to the shop. Keep up the great videos my friend !!!
It's because between the bookwork, and meeting with you when picking up and dropping off, it always takes more than just 5 minutes of time.
you are eat up with it
Great video as always, Steve! hmmmm, wish I'd seen this video a week ago before ordering that full carb replacement/fuel lines (only $20 though). After pulling apart the engine, major scoring, stuck piston rings. Learned a lesson about the adequate feel of the pull rope and compression. Not fully sure why it failed, maybe raw fuel. Now, should I spend about $70-$80 on a cylinder and piston kit for a $180 tool?
Thank you for sharing your knowledge and teaching us so well.
You're welcome...
Just bought the tester. Thanks Steve.
Fantastic!
@@StevesSmallEngineSaloon and it confirmed what you already taught me with the compression being low on the pull. 60psi on an echo pb-2520. My echo pas-225 motor head has 135psi. Took it apart and it appears to have light scoring on the sides of the piston and a pinhole in the top of the piston. Crazy. only ran it with 50:1 but I used ethanol fuel. I've since switched to non-ethanol. Thanks so much for all you do. I've learned so much about small engines from you. Really appreciate it.
Hey Steve is me again I am working on stihl 029 ( I know is an old piece of junk is just me, a 'friend' gave it tome very abuse saw )any way when I go to use a make a gasket (yamabond 4) to put the crank shaft in do I put the parts together as soon after I make the gasket on both surfaces or I wait like 24 hours until is hard, I hope you understand what I am trying to say my English is terrible,and I still like your videos is nice to learn and to have fun at the same time, and I am still only drinking one beer (cold) at once. thankyou for you patience, your videos are explain to the point .
Thank you brother, good video. I wish to gain all your knowledge one day. I work on a lot of small engines
Right on brother, glad I can help...
Love you work and honesty brother👍 i wont't lend my saw to Rick!
Right on
Labatt Blue.......a true Canuck, love all your vids, so helpful, thanks
You're Welcome...
Here with me in Kuwait, the situation is different as told before. I have repaired the damaged cylinder kit and made it run just by changing sometime only rings. It takes time. Here in ,troublesome customers, lack of spares are a big issue. Sometimes I have to make somethings by my own ideas.
spot on . however i always use the tester first saves a boat load of time.
this episode is great Steve , no beer tonight but some good Canadian whiskey is doing just fine . as usual another great vid.
Thank You...
This is super interesting thanks! I never understood how engine parts actually worked before this...
Glad to help!
I am presently replacing purge bulb & fuel lines on my Poulan 4018 chainsaw & I did observe the piston & cylinder through the exhaust & looks to be in good condition as you showed in your video. The pullcord test is also hard enough to pull so compression should be acceptable, but I will also look into getting a pressure gauge.
Good stuff
Thank you so much for this presentation. It was extremely helpful
You're very welcome!
You made it very easy for me. Thanks Steve
You're Welcome...
Hi Steve, yes checking the compression is one of the first things to test in my Mercury Outboard service manual. It states if the compression is not correct to address it before proceeding on. That too is if the owner wants to spend the money fixing it? Good video. Cheers🍺
Thanks again Tim...
Thanks Steve ! great lighting and camera skills..
You're Welcome...and Thank You...
why are your videos always so good? haha thanks for the new video they always help out and i always learn a lot
Nice compliment Rory! Thanks so much...
Extremely helpful. Thanks.
You're Welcome...
Good video mate don't know how you kept a straight face when saying Rik's name 😂😂
LOL, he's not impressed!
This was extremely helpful. And more systematic and clear than a lot of other information I found. Subscribed.
Awesome, thank you!
Thanks Steve. Excellent information.
You're Welcome...
Never would have taught of that. Thank you.
You're Welcome...
Excellent advice VIDEO
I thought i took such good care of my little poulan pp5020av.
Nice Oregon bar and "ripping" chain.
Just a touch of nitromethane for a little more pep...
Broke her out to finally take out a pesky tree, started fine, didn't feel quite right.
Cutting the tree, it felt a little gutless.
Fresh fuel, fresh 3 capfulls of NM...
I get the tree down, sliced it up into bite size pieces.
I decide to dig into the saw, cleaned it up and looked it over, preparing to rebuild the carb...
Pulled the muffler while cleaning the wood chunks out, and i see it.
My rings and cylinder wall!
Chrome lining had some light gathering properties...
Now i wonder, am i sure i didn't pit half of the oil in the last premix fill?
Saw is cheap, looks like fun to rebuild... meh i ordered the parts!
Plenty of beer on hand to complete the job!
Great video Steve. Thanks for sharing.
Thanks for watching
No BS, no nonsense. great vid. Thx.
Right on Ed! You're Welcome...
Steve you are awesome. Make me feel like we are good friends hanging out when I watch your videos. Lol
Thats pretty cool man...
Steve, that was a great piece of information very knowledgeable Thanks.
You're Welcome...
Another great tutorial Thanks for sharing Steve Much appreciated Mate
Very welcome
THANK-YOU VERY MUCH STEVE....STAY AWESOME !!
Rock on!
That yellow saw right there, you keep poulan and poulan on the rope, ...and it still won't start! 😆🤣😆😁
Top flight and to the point presentation. Subscribed
Thank You...