Awesome vision and explanation. Thank you. It’s surprising how much tolerance echo built into the exhaust timing. It explains why their saws are so reliable and often under performers when you see numbers like that.
It's my understanding they have a reason for doing this, the a echo guy explained it to me made sense considering I know what the auto industry went through in the early 70's lacking emissions tech at the time they dropped compression and retarded valve and ignition timing a few degrees slaughtering power and efficiency to satisfy the autistic big brother(no offense to folks with autism) When small power equipment got hit with epa regulations ( I think 50cc and up but don't quote me on that) Other companies like Husqvarna,Stihl ECT went the route of more technology such as a autotune to achieve numbers that comply, you get to achieve more power that way but at the cost of longevity and cost , by echos squish and timing they can scrape past epa regs while keeping it basic and old school and less technology=less expensive and typically more longevity you also end up with more of a torque than rpm saw anyways so why not go with the longer rod to capitalize even more on that..which they do here. A 7310 is a real headscratcher on its #'s without that understanding and gets left in the dust by a 572 except you will probably burn up 3 572's to 1 7310 BUT you have more room to wiggle in making that 7310 stomp a 572. All that said I love my 590 it's a great work saw I love it just the way it is for what it is and probably won't mess with it..but we'll see what tinman ends up with here I may change my mind idk but I like the fact heat is far from an issue I can run it wide open all day, it's got great mid rpm torque to knock them rakers down a good bit the way I like and really dig while stopping mid cut and taking my time dropping trees in sketchy places ...it's the old marlin 336 of the modern saw realm just a good ol tool for the Workin Man you can't beat it.
I've watched Buck'n's videos and he's mentioned many times about Tinman porting this one or that one but I never truly understood what it meant. So I started watching a few of your videos(not on porting though) and this one explains it for me. Thank you for sharing. I don't know if I'll ever port a saw but now I know what the term means and what it does for the saw. You care about what you do and it shows in your work.
I ported a 71cc Stihl 044 and it basically adds around 25-30% more power to the saw. Never port one unless you want to be addicted to running modified saws for the rest of your life, because the difference IS that dramatic.
@@WildAcresFarms I'm just a regular joe that cuts firewood for the house but man when I watch Tinman or Buckin' cutting wood with saws that look and sound like they're on steroids, it's awesome!
Same here, I fall limb and buck probably 30 hardwoods a year. Or more. Two woodstoves and a gas powered splitter. My 71cc saw runs a 32” full chisel, and cuts at double the speed of a little one like a 290 Farm Boss. No bending over to buck because the bar tip reaches the ground.
@@WildAcresFarms Sounds like you have a great set up for cut'n wood.. I think at some point I'm gonna have to try it...I feel the urge building. Thanks for sharing, stay safe out there and God bless.
The finished exhaust port look fantastic. Wondering if you ever tried a flap wheel like Donny Walker to finish the final port polish? Keep up the great videos, we all are enjoying the education.
Remember kids if you use single cut bits by heavens please use gloves, it was one of the worst weeks I have had in my life when those teeny tiny chips just dig in to the palm and between your fingers and you cant see them and you don't know exactly where they are but oh do you feel them everytime you grab something. Anyway I don't know if this is the case with double cut bits, guess not since Tinman never uses gloves.
Keep up the good work I should send you my 372xp and get it done you make it look easy I'll rebuild them and fix them but dont trust myself yet to port one lol
Im hoping this saw blows ya socks off when your finished. Cant wait to see this cut. First saw i tried to port was a echo and somehow it came out good with bigger carb and and homemade pipe. Ive had a few fails since then trying some crazy stuff but only on cheap saws. Ive got a 394 that i dont wanna touch coz it already hammers as it is
Hey TINMAN, hope your well! This series on the echoes got me concerned. I just got a cs600 to freshen up for a local logger and I was thinking of warming it up a bit for him but after your bogging issues I’m having second thoughts. Can’t wait to see if you can get it all sorted.
Great job explaining how you do this. Your a great teacher. I am looking forward to seeing this project all done. I still don’t think it’s possible but how awesome would it be to put a small turbo on a saw. Ironhorse has talked about it but I don’t know if it’s physically possible or not. Just something to think about I guess. As always WORK SAFE 😎😎🇨🇦🇺🇸
i used to port saws, made some great ones and made some mistakes but never have i had a ported saw topend last as long as a stock cylinder with a simple clean up, as far as power goes yes i have seen darn near double the original power when all said and done but the mains usually didn't hold up for long. I have seen a few exceptions and had great reliability with some but never ported an echo. I must say that i have had headaches getting the fueling right as well. When i was into this the mac's, huskys, and older stihl saws nearly always had noticeable and at times large power gains. Gave up on this when i turned an efco saw into a mess(grenade).
Tin man can't wait to see how that turns out I'm going to copy those numbers on my 590.on the muff box I smashed the hood down and welded it shut then took a wood pilot bit and drilled two holes in the bottom left side for two pipes stacked the pipes go in all the way and stop just before back wall .I do this to all my saws there not super loud and it creates some very much needed back pressure.. here's an example a 1989 honda civic the muffler falls off it's super loud no power put new muff on power restored rant over peace.
So for us novice guys without timing wheels, would it be accurate to say if you remove a .010 base gasket to raise the exhaust.010 or do you think that’s not high enough on these 590s.
At 18:28, am I crazy but does the grind seem rather asymmetrical at the bottom? I'm very interested in your vids. I have the 590, 620 and 7310. I assume the 620 is very similar.
This summer ... hot, dry, a lot of crickets and grasshoppers. I have a couple saws that could use a little porting, and love ... but gota go fishing first ... heh heh.
Awesome vision and explanation. Thank you.
It’s surprising how much tolerance echo built into the exhaust timing. It explains why their saws are so reliable and often under performers when you see numbers like that.
It's my understanding they have a reason for doing this, the a echo guy explained it to me made sense considering I know what the auto industry went through in the early 70's lacking emissions tech at the time they dropped compression and retarded valve and ignition timing a few degrees slaughtering power and efficiency to satisfy the autistic big brother(no offense to folks with autism)
When small power equipment got hit with epa regulations ( I think 50cc and up but don't quote me on that)
Other companies like Husqvarna,Stihl ECT went the route of more technology such as a autotune to achieve numbers that comply, you get to achieve more power that way but at the cost of longevity and cost , by echos squish and timing they can scrape past epa regs while keeping it basic and old school and less technology=less expensive and typically more longevity you also end up with more of a torque than rpm saw anyways so why not go with the longer rod to capitalize even more on that..which they do here. A 7310 is a real headscratcher on its #'s without that understanding and gets left in the dust by a 572 except you will probably burn up 3 572's to 1 7310 BUT you have more room to wiggle in making that 7310 stomp a 572.
All that said I love my 590 it's a great work saw I love it just the way it is for what it is and probably won't mess with it..but we'll see what tinman ends up with here I may change my mind idk but I like the fact heat is far from an issue I can run it wide open all day, it's got great mid rpm torque to knock them rakers down a good bit the way I like and really dig while stopping mid cut and taking my time dropping trees in sketchy places ...it's the old marlin 336 of the modern saw realm just a good ol tool for the Workin Man you can't beat it.
I've watched Buck'n's videos and he's mentioned many times about Tinman porting this one or that one but I never truly understood what it meant. So I started watching a few of your videos(not on porting though) and this one explains it for me. Thank you for sharing. I don't know if I'll ever port a saw but now I know what the term means and what it does for the saw. You care about what you do and it shows in your work.
I ported a 71cc Stihl 044 and it basically adds around 25-30% more power to the saw. Never port one unless you want to be addicted to running modified saws for the rest of your life, because the difference IS that dramatic.
@@WildAcresFarms
I'm just a regular joe that cuts firewood for the house but man when I watch Tinman or Buckin' cutting wood with saws that look and sound like they're on steroids, it's awesome!
@@WildAcresFarms
I can fully understand why it would be addicting!
Same here, I fall limb and buck probably 30 hardwoods a year. Or more. Two woodstoves and a gas powered splitter. My 71cc saw runs a 32” full chisel, and cuts at double the speed of a little one like a 290 Farm Boss. No bending over to buck because the bar tip reaches the ground.
@@WildAcresFarms
Sounds like you have a great set up for cut'n wood.. I think at some point I'm gonna have to try it...I feel the urge building. Thanks for sharing, stay safe out there and God bless.
Enjoy the echo work. Great vid as usual. Be safe and be careful.
Good video. I have a lot of interest in the 590 videos
The finished exhaust port look fantastic. Wondering if you ever tried a flap wheel like Donny Walker to finish the final port polish? Keep up the great videos, we all are enjoying the education.
Remember kids if you use single cut bits by heavens please use gloves, it was one of the worst weeks I have had in my life when those teeny tiny chips just dig in to the palm and between your fingers and you cant see them and you don't know exactly where they are but oh do you feel them everytime you grab something. Anyway I don't know if this is the case with double cut bits, guess not since Tinman never uses gloves.
Love it! Following along with my Timberwolf can’t wait for the finished product
Keep up the good work I should send you my 372xp and get it done you make it look easy I'll rebuild them and fix them but dont trust myself yet to port one lol
I'm right there with ya
Good lookin' work there Tinman!
Great video, have a 590 thinking about porting possibly. Can't wait to see a video of it running
Great explanation👍 that exhaust port came out beautiful!
Great video, the crew at SawAgain really enjoy your presentations. Thank you
Love the shirt, i got the same one.
And thank you for sharing your methods!
The crickets crack me up!!
Beautiful professional grinding. Thanks Tinman.
That should make quite a difference. 👍
Im hoping this saw blows ya socks off when your finished.
Cant wait to see this cut. First saw i tried to port was a echo and somehow it came out good with bigger carb and and homemade pipe. Ive had a few fails since then trying some crazy stuff but only on cheap saws. Ive got a 394 that i dont wanna touch coz it already hammers as it is
Hey TINMAN, hope your well! This series on the echoes got me concerned. I just got a cs600 to freshen up for a local logger and I was thinking of warming it up a bit for him but after your bogging issues I’m having second thoughts. Can’t wait to see if you can get it all sorted.
Thank you for the knowledge sr. Great work. Love the background music. Lol
Got the tinnitus from too much heavy construction. The only crickets I hear are in my head and constant! 🤣🤣🤣
Me to buddy, the ears ring a ding ding
I like how ya check your work with the light and timing wheel so you dont go to far.
Great job explaining how you do this. Your a great teacher. I am looking forward to seeing this project all done. I still don’t think it’s possible but how awesome would it be to put a small turbo on a saw. Ironhorse has talked about it but I don’t know if it’s physically possible or not. Just something to think about I guess. As always WORK SAFE 😎😎🇨🇦🇺🇸
We are supposed to finally get some rain tonight. Been weeks. Thanks for the video Tinman!
Been pouring here all day!! Its about time we got rain
Here in Mississippi we are glad it finally stopped. Lots of hay got lost this year.
i used to port saws, made some great ones and made some mistakes but never have i had a ported saw topend last as long as a stock cylinder with a simple clean up, as far as power goes yes i have seen darn near double the original power when all said and done but the mains usually didn't hold up for long. I have seen a few exceptions and had great reliability with some but never ported an echo. I must say that i have had headaches getting the fueling right as well. When i was into this the mac's, huskys, and older stihl saws nearly always had noticeable and at times large power gains. Gave up on this when i turned an efco saw into a mess(grenade).
Thanks for the info I bet it will be a great saw. I have a 590 maybe I will get the courage to try this
Great info like always
Thank you sir!
Great job buddy! Good seeing ya! Have a great weekend!
Awesome work as always. I've learned so much from you.
Great video, very informative thank you.
Tin man can't wait to see how that turns out I'm going to copy those numbers on my 590.on the muff box I smashed the hood down and welded it shut then took a wood pilot bit and drilled two holes in the bottom left side for two pipes stacked the pipes go in all the way and stop just before back wall .I do this to all my saws there not super loud and it creates some very much needed back pressure.. here's an example a 1989 honda civic the muffler falls off it's super loud no power put new muff on power restored rant over peace.
Crickets say: WELCOME TO TINMAN’S BAIT SHOP
great video buddy
Looks great man!
Do you go ahead and buff to a bright polish?
Nice work
It’s a nice reliable saw but I wish it had more pull. Maybe I’ll get to port it one day👍
Nice!!!!!
Beautiful work!
Awesome!! I been waiting on this tinman!!
Man that looks good……….. to bad you didn’t have a camera showing your point of view when grinding.
So for us novice guys without timing wheels, would it be accurate to say if you remove a .010 base gasket to raise the exhaust.010 or do you think that’s not high enough on these 590s.
Tinmaaaaaaaan💚🌳👊👍
At 18:28, am I crazy but does the grind seem rather asymmetrical at the bottom? I'm very interested in your vids. I have the 590, 620 and 7310. I assume the 620 is very similar.
Thank you!!
This summer ... hot, dry, a lot of crickets and grasshoppers. I have a couple saws that could use a little porting, and love ... but gota go fishing first ... heh heh.
18:31...that's exactly what she said!!!!
Too dry to chainsaw where you are and too wet where I am, sigh*.
tinman? This has probably been ask. Do you use any compounds when polishing?
Was this done with a cylinder gasket delete of did you keep it in there?
Do you have a lead on good diamond bits for chamfering? All the ones I find locally wear out very fast.
What's the wheel measuring device at the start called?
On the 590s all ways seems like you have to grind a mile on ex port
Have you always used that variable speed flex shaft grinder?
Thats a foredom SR, i used to use a dremel with a fkex shaft
Tinman is da bomb💯😎🇺🇲🤠🤘
Nice work