For years I've had moments and emails about one of the ways I time my saws. Let's use to cutaway to see if my "theory is fact"
Пікірлер: 57
@Magoot2456Ай бұрын
I think it's comical that people would get snotty with you over this. You say in almost every video that you do this for fun, and do it just to teach people what you have learned over the years. So THANK YOU Tinman for teaching us, I've learned so incredibly much from you man! I ported my first saw because of you, did up my MS460 and she rips all thanks to you!!!!
@martyrutter3630Ай бұрын
That cut away saw takes all the mystery out of the build and provides a clear picture of all the mechanical functions. Very nice 👍👍
@paultrummer7289Ай бұрын
All know is I'm thankful for all the info you share with us I split the cases ported and piped my 372 from watching your videos and lightened the piston she ripps now lol
@tinmanssawsАй бұрын
You're welcome, that is 100% why I do this.
@k9elliАй бұрын
Cutaway model is awesome for showing concepts 👌🏼
@tjgrossmanАй бұрын
This is the same principle, crank angle, why a stroker engine produces higher torque with a longer rod, say going 6.0” from a 5.7” rod with the same stroke. Very well explained Tinman.
@tinmanssawsАй бұрын
I tried my best to explain it. I appreciate the feedback
@glennfitch585Ай бұрын
Hi Tinman , love your channel. Quick suggestion for next time you do a video like this. Mount the timing wheel facing the piston. Cheers!
@jasonburqueАй бұрын
You're popular in the motorized bicycle community... I would love to see you do an Avenger 85 or MS 660 on a beach cruiser 100%
@skravlesenАй бұрын
The Tinmaster😎 This is awesome info, thanks man!
@darrenpierce9903Ай бұрын
Ive learnt so much from your channel. Just finished doing my first 372xp. bottom end and ported top end too. thanks to your videos!. Keep'm coming - they're so helpful. Cheers from NZ
@SouthShoreSawSalvageАй бұрын
Thank you Tinman, I've been wondering about this and hadn't quite figured it out. Showing how this works on your cut away really helps!
@aaronpowell4885Ай бұрын
Love the cutaway! Definitely helps to be able to see it when one cant quite visualize something👍🏻
@tdawg8605Ай бұрын
Interesting... indeed.... through in a knock off crank and who knows where you could end up. Wonderful insight, never thought of the cylinder shifting on the case. Thank you. TC Mahalo Tinman🤙🤙🤙
@danielbenedict9236Ай бұрын
Awesome video Tinman I really appreciate all of the knowledge you share with us and the time you take to make the videos to share that with us. Thank you!!!
@chriswilliamson796Ай бұрын
That's pretty wild tinman. But it does make sense when moving the cylinder forward that it would affect the effective throw of the rod. Still crazy though
@kevinmccoy269Ай бұрын
Great explanation.
@robert4027Ай бұрын
UPS is delivering my husky 550xp mark2 Today ...I'm really excited it's my first brand new saw ever . I've always bought used.. I think I heard that tinman wants to Port it for me 😃
@bsutton7964Ай бұрын
Yeah it's called an offset crankshaft. It's not inline with the wrist pin on the piston. Some motorcycle engines do this on purpose to achieve different power bands and dynamic balances.
@jonathanhall136Ай бұрын
Very insightful, thank you. Weather sounds about the same as the UK and I'm a gardener so not great for me either😁
@tinmanssawsАй бұрын
We used to have a giant garden but have scaled back since having the wee one.
@waydehamm7928Ай бұрын
Nice job tinman very interesting 👍👍
@colvinwellbornАй бұрын
It's insane that people get wound up over this, there are a ton of videos on youtube explaining it. They clearly haven't done any research and are just shooting from the hip. The Driving 4 Answers channel does a really thorough and in-depth video explaining the phenomenon and covers why rod length matters even between engines with the same bore and stroke. Fortnine also covers it several times when explaining secondary imbalance in various multi-cylinder (motorcycle) engine designs.
@marcustraberАй бұрын
Thanks Tinman! Generally I don't worry unless the timing deviates by more than 1 degree when checking both directions. If they're off by about 1 degree, I assume I can average the two numbers.
@user-kg4sq5dc5dАй бұрын
Does it zero out on top dead center after you moved the cylinder
@tinmanssawsАй бұрын
I'm glad folks like you are asking questions this video was made for that reason. I will make a.follow up video on this.
@waydehamm7928Ай бұрын
I was waiting for the piston stop to go back in too see also
@llewisivАй бұрын
Yeah, wondering the same thing, if you re-zero do you still see this. On to the next video to find out.
@kristjanposavec6834Ай бұрын
When you move the cylinder forward you have to adjust TDC
@henrybarker1159Ай бұрын
The old offset bore and piston trick ? used in auto engines a lot
@tinmanssawsАй бұрын
Shhhhhhh lol
@classicfordmuscleАй бұрын
It the cylinder is not perfectly centered over the crankshaft, if it is fore or aft, you can and will get different timing numbers on opening and closing.
@whistlingwindranch1832Ай бұрын
So you could shave the piston skirt to increase intake opening duration without changing exhaust timing, or transfer timing.
@tinmanssawsАй бұрын
Yes
@CraigArndtАй бұрын
Watched the 026 Stihl vid last night, decided after work today, tearing apart my 036 Pro, it won't run right. Took it down to the chassis, I have the smallest pin hole in my impulse line it won't hold air. And my rubber intake boot is original. While I'm here, doing a base gasket delete and already did a muffler mod. Hope I found the problem.
@tinmanssawsАй бұрын
I'll bet those are your issues.
@chriswilliamson796Ай бұрын
How do you think that would affect engine rpm?
@carl4130Ай бұрын
Thanks tin man
@carl4130Ай бұрын
I’ll leave this stuff to the knowledge people love watching your videos but I’ll just run stock I probably will stuff it up thanks for all your videos
@chainsawcanuckАй бұрын
You are having the same 💩 weather edmonton has, I'm ready for warm dry weather and cold beers
@JoeRainis156Ай бұрын
Hello TinMan
@tinmanssawsАй бұрын
Hey buddy
@Dolmar-RickАй бұрын
Why would the cylinder move unless it's been on and off a lot, and bolt holes have gone slack🤷🏻♂️ or am I missing something 😂
@tinmanssawsАй бұрын
The cylinder doesn't move, crank center line can be off during the manufacturing process which is the same as the cylinder being forward.
@russellmihalko646Ай бұрын
why not print the timing marks on both sides of your timing wheels?
@mucccvhorob4596Ай бұрын
On most applications for these wheels you cant see the back of the wheel. They are not made just for chainsaws.
@justinweaver8107Ай бұрын
🤔🤔
@kurtsteele5587Ай бұрын
How's the Tinman and family
@boblapalme77Ай бұрын
Shouldn’t you rezero after moving the cylinder?
@tinmanssawsАй бұрын
That's a good question.
@mach5407Ай бұрын
Yes, because the wrist pin is no longer directly in line with the crank journal and connecting rod journal at the former “TDC”
@JAMESHOPKINSIBXCNCАй бұрын
Wouldn’t it be easier to just move the camera!! 😂🤣
@thomaskapetantsis4951Ай бұрын
No that’s not how you do it but it’s very close
@Z-BartАй бұрын
Fascinating. I say trust the math, question the science.
@josephrheaume8386Ай бұрын
You used the wrong cylinder half I believe. The exhaust and intake are reversed. But you may already addressed this.😊
@josephrheaume8386Ай бұрын
Actually you can just use the other crank half.
@fabzacres-blackcatАй бұрын
You have just made a Desaxe engine by moving the cylinder and yes the numbers will change