The guy I learned to fall timber from use to polich the inside of the piston and took the sharp edges of the jug,his saws were fast and smooth cutting. You bring up some good ideas for sure. Buying a knock off slug and jusg and messing with these is a great way to learn and not risk a spendy sslug and jug.
What a great vid !!! I asked this question months ago but it must of gotten lost in all the shuffle lol so I went ahead not knowing and did all the grinding on a piston, intake, transfers and exhaust for a 372 it was a bit tricky with the numbers being transferred to top of piston laying out transfers and all but I'll tell you it's a runner strong and zippy, thanks TM👍👍
I just bought a well used 026. Needs new fuel and impulse lines I reckon at least as it won't tune like it's starving for fuel. High speed is good, idle tuning it just leans out. At least that's where I will start - then carby, crank seals etc.
This is awesome, Tinman. I'm new to the chainsaw obsession and have an old 031av apart in a box. I'll be taking what you show here and applying it directly to that saw. Keep your stick on the ice!
Interesting to see the piston work. My 026 and 440 magnum are virgins. Just picked up a ms250 that will part out and a ms180c that just needs cleaning, clutch and bearing.
Window shakers are cheap! Got one in my garage first sweat, life is too short to sweat at home! Started life just outside Phoenix and refuse to drip and be miserable ( make that more than usual) just to save a couple of bucks a month. I’ve earned comfy 😊
Grinding on the piston skirt and crown used to seem like a really bad idea to me. But seeing all the successful and long lasting builds with piston work, beyond opening windows and chamfering, has gotten me willing to give it a try!
Hey Tinman, how about a primer on using hand files for cylinder porting. Some fellows don't have 3 grinders hanging from their basement ceiling like I do.
Harbor Frought or Princess up North, Facebook, local fliers, thrift shops…..hand grinders are dirt cheap. Most people start out using dremel or equivalent- everybody makes small grinders. Not a reason for anyone to not hop up a saw😮
After additional thought, drill will dowel covered with sandpaper…rat tail file, followed by sandpaper glued or taped on 😊. I was gifted a fordom (sp?) and it’s waiting for my shop to be completed to set up a new saw area, but last winter I took a little time to tweak an Echo muffler with my trusty Dremel. I’m 72 and just getting my first shop 😂 so glad to have a nice workspace (as I am finishing so of the details I am still digging for “ lost tools “ and clearing up the volunteer cedar and ash trees that are taking over the property, and trying to get the snow melt and rain water to go away- everything is nuts with the weather lately and almost had a couple of dying ash trees (thanks to the Emerald Ash Borer that has recently started killing my Ash trees 😮 😢). OK I digress ( I am old and lost my marbles long ago) but when We think about it, anyone who follows Tinmann should be able to find a way. Maybe take a few hours longer…which would probably be a good thing. I am not denying that power and control is easily preferred but good old fashioned ingenuity still has its place 😂. Appreciate the opportunity to converse with you, we would probably be great friends if location and spare time allowed, because anyone who hangs out here would enjoy trading thoughts and experiences. Cheers 😊!
Hey tinman I was going to try the one ring on a piston you were talking about I was wondering if it’s better to put the ring on the top or bottom row on the piston or does it matter ? Been loving the more in depth porting videos lately
Hi Tinman's I have a question for you, is it worth paying attention to blowdown when porting or can it be skipped? I'm just starting to play around with porting,😊
Im super bummed your not gonna actually port this little guy! Maybe after you do the stuff that a normal person can do, after running and showing what it did to the saw THEN actually port it? Just my 2 cents!
This info is pure gold friend. Loving the information.
The guy I learned to fall timber from use to polich the inside of the piston and took the sharp edges of the jug,his saws were fast and smooth cutting. You bring up some good ideas for sure. Buying a knock off slug and jusg and messing with these is a great way to learn and not risk a spendy sslug and jug.
Lots of technical stuff but you have a clear explanation of what and how it works. 👍Nice job
What a great vid !!! I asked this question months ago but it must of gotten lost in all the shuffle lol so I went ahead not knowing and did all the grinding on a piston, intake, transfers and exhaust for a 372 it was a bit tricky with the numbers being transferred to top of piston laying out transfers and all but I'll tell you it's a runner strong and zippy, thanks TM👍👍
Enjoying following the build Tinman , articulate as ever !
Hope the family is doing great ❤️
Yes Sir good stuff! That's exactly what a lot of the McCulloch Kart engine builders used to do, make timing adjustments with the piston skirt.
As always good information! Thank you for sharing what you have learned over the years of building saws.
Fascinating, the piston work.
Thanks for those tips!!!
Enjoyed this one. Thanks for the tips
I just bought a well used 026. Needs new fuel and impulse lines I reckon at least as it won't tune like it's starving for fuel. High speed is good, idle tuning it just leans out. At least that's where I will start - then carby, crank seals etc.
This is awesome, Tinman. I'm new to the chainsaw obsession and have an old 031av apart in a box. I'll be taking what you show here and applying it directly to that saw.
Keep your stick on the ice!
Very interesting indeed will continue to observe the progress. TC Mahalo Tinman 🤙🤙🤙
Phenomenal discussion and teaching!!!!👍👍👍
As always good stuff. Great idea to help out someone new to modifications
Interesting to see the piston work. My 026 and 440 magnum are virgins. Just picked up a ms250 that will part out and a ms180c that just needs cleaning, clutch and bearing.
This is a great series!
The more I watch here, the more I'm tempted to add another Stihl to the mix😊 Good stuff Tinman 👍
Oh, and Kansas is drippy too😅
Window shakers are cheap! Got one in my garage first sweat, life is too short to sweat at home! Started life just outside Phoenix and refuse to drip and be miserable ( make that more than usual) just to save a couple of bucks a month. I’ve earned comfy 😊
Wohoo! More Stihl content 😍
Grinding on the piston skirt and crown used to seem like a really bad idea to me. But seeing all the successful and long lasting builds with piston work, beyond opening windows and chamfering, has gotten me willing to give it a try!
I believe Donny Walker and some others has done it for long time.
harbor freight has grinders for like 40 ,50 bucks and ive ground 4 or 5 saws and all good
Hey Tinman, shot you an email today! Keep up the great work!
Every old guy wants a 026 for cutting firewood! Including me!
Maybe you can get a fan at least in the shop. Piston lookin sweet!
Hey Tinman, how about a primer on using hand files for cylinder porting. Some fellows don't have 3 grinders hanging from their basement ceiling like I do.
Harbor Frought or Princess up North, Facebook, local fliers, thrift shops…..hand grinders are dirt cheap. Most people start out using dremel or equivalent- everybody makes small grinders. Not a reason for anyone to not hop up a saw😮
Exactly. This whole job can be done with hand files
After additional thought, drill will dowel covered with sandpaper…rat tail file, followed by sandpaper glued or taped on 😊. I was gifted a fordom (sp?) and it’s waiting for my shop to be completed to set up a new saw area, but last winter I took a little time to tweak an Echo muffler with my trusty Dremel. I’m 72 and just getting my first shop 😂 so glad to have a nice workspace (as I am finishing so of the details I am still digging for “ lost tools “ and clearing up the volunteer cedar and ash trees that are taking over the property, and trying to get the snow melt and rain water to go away- everything is nuts with the weather lately and almost had a couple of dying ash trees (thanks to the Emerald Ash Borer that has recently started killing my Ash trees 😮 😢). OK I digress ( I am old and lost my marbles long ago) but when We think about it, anyone who follows Tinmann should be able to find a way. Maybe take a few hours longer…which would probably be a good thing. I am not denying that power and control is easily preferred but good old fashioned ingenuity still has its place 😂. Appreciate the opportunity to converse with you, we would probably be great friends if location and spare time allowed, because anyone who hangs out here would enjoy trading thoughts and experiences. Cheers 😊!
Honestly I don't have the time to do it by hand. Grinders are so cheap.
I've found that it's easier to grind too far on the skirt vs. the intake port - just a warning for anyone who reads this!
That's why I make marks, it's easy to go too far for sure.
Hey tinman I was going to try the one ring on a piston you were talking about I was wondering if it’s better to put the ring on the top or bottom row on the piston or does it matter ? Been loving the more in depth porting videos lately
👍👍
Can I send you a picture of the exhaust port on one of my saws and will you tell me how much I can open it up because it's probably over 50% blocked?
Hi Tinman's I have a question for you, is it worth paying attention to blowdown when porting or can it be skipped? I'm just starting to play around with porting,😊
Awesome job Tinman, are you planning on heat treating the piston?
No ill run tnis one the way it came.
Is it easier to grind a piston than a cylinder? it seems easier.
It is but it's also easier to overgrind a piston..
How's the Tinman and family
Very good Tinman that's what I do every tome I do a saw.
Im super bummed your not gonna actually port this little guy! Maybe after you do the stuff that a normal person can do, after running and showing what it did to the saw THEN actually port it? Just my 2 cents!
This will.be a strong saw when it's done. It's ported just done the easy way.
@tinmanssaws I have no doubt it will be strong, I just wondering how much big lowers would change the saw is all :)