I’ve always had trouble truing cranks mate it was something I just couldn’t get my head around. Thanks to your vid Darcy I am now more than confident to give it another try. Your explanations in your vids are by far the best and u make sure to go over all details. Thank you very much Darcy. BEST CRANK TRUING VIDEO AVAILABLE. CHEERS MATE.
I'm putting lots of pressure on it to bend it in and out up and down , you need to make sure bearing are not too tight to the journal, you can heat up the bearings before install and freeze the crank . This will help
At the end of the video when you are spinning the crank in the lathe, if you slow the video down to .25 speed, it appears the ossilation in the dial indicator is perfectly timed with the spring tensioning and relaxing. Because you don't have both ends of the crank supported and the size of the spring, it is likely applying enough spring force to the rod to cause a minor flex in the crank and potentially false readings on the dial indicator. Therefore shouldn't this procedure be performed without a spring pulling on the rod? I understand you may have secured the rod with a spring for the purposes of making the video, but it should be pointed out that it was for video purposes and no load should be applied to the rod while taking measurements. But still a great and very educational video. Thank you!
That is awesome didn't know how to fix the wobble on the journals thank you. 1 question where do you get your demon decals on some of your builds I've got a screaming demon v2 bicycle with a minaralli on it I seen one of yours and loved the look keep up the good work I'm new subscriber
Hi , Actually I used the name Screaming Demon first on this build, I know the manufacturers in China that build the engines and Screaming Demon frames they likes the name so much they used it on the bike for advertising. My Decals are custom made by me DLH Performance,contact me on my website if you would like a set
If so easy to manipulate adjustment , what keeps it from moving while reciprocating during compression Stokes... It just seems like like such a tender movement....a fixed crank I could perceive...but where the crank is simply pressed it's evading my thoughts.... Maybe I'm over complicating things or just ignorant to the matter....The latter being more likely....So thanks in your attempt to Educate me..... Ain't it just ain't it 😎 lols
It's in the crank case set in bearings , as long as you Don't force the case back together it holds its ( True ) and runs vibration free allowing engine to hit maximum RPM range
Couldn't you just sandwich a round block of steel in between where the crank arm is then just lightly hydralic press fit everything true?... If that makes sense to you, idk.
I’ve always had trouble truing cranks mate it was something I just couldn’t get my head around. Thanks to your vid Darcy I am now more than confident to give it another try. Your explanations in your vids are by far the best and u make sure to go over all details. Thank you very much Darcy. BEST CRANK TRUING VIDEO AVAILABLE. CHEERS MATE.
Glad to help
Super smart guy he's my brother
The best instructional vid going bud. Keep the good work up Darcy.
Much appreciated
Awesome explanation with great patience. Thanks. I feel UA-cam certified..
With the tolerances that sensitive to a bump or a squeeze, I imagine it's probably going to not be as true after installing it?
I'm putting lots of pressure on it to bend it in and out up and down , you need to make sure bearing are not too tight to the journal, you can heat up the bearings before install and freeze the crank . This will help
Once you get the crank true, could you put a spot weld on each side of the pin to keep it true?
Thanks for sharing this type it skillz with us all. This is very important and very necessary in making a motor run SMOOTH as Silk! 👍
Glad it was helpful!
At the end of the video when you are spinning the crank in the lathe, if you slow the video down to .25 speed, it appears the ossilation in the dial indicator is perfectly timed with the spring tensioning and relaxing. Because you don't have both ends of the crank supported and the size of the spring, it is likely applying enough spring force to the rod to cause a minor flex in the crank and potentially false readings on the dial indicator. Therefore shouldn't this procedure be performed without a spring pulling on the rod? I understand you may have secured the rod with a spring for the purposes of making the video, but it should be pointed out that it was for video purposes and no load should be applied to the rod while taking measurements. But still a great and very educational video. Thank you!
Is this tune made for the reed valve?
Awesome, thanks for your help and time,
Glad to help
Can i buy a stand like that or do i need to weld it myself?
Great video thanks
Glad you enjoyed it
That is awesome didn't know how to fix the wobble on the journals thank you. 1 question where do you get your demon decals on some of your builds I've got a screaming demon v2 bicycle with a minaralli on it I seen one of yours and loved the look keep up the good work I'm new subscriber
Hi , Actually I used the name Screaming Demon first on this build, I know the manufacturers in China that build the engines and Screaming Demon frames they likes the name so much they used it on the bike for advertising. My Decals are custom made by me DLH Performance,contact me on my website if you would like a set
dlh-performance.myshopify.com/
Im new to the scene. How much difference does the truing make?
stops vibration in engine , you especially notice this on a high revving performance engine
Can you weld these cases?
yes you can
What's the highest hp motor y'all sell. How much hp?
10 - 14 hp
If so easy to manipulate adjustment , what keeps it from moving while reciprocating during compression Stokes... It just seems like like such a tender movement....a fixed crank I could perceive...but where the crank is simply pressed it's evading my thoughts.... Maybe I'm over complicating things or just ignorant to the matter....The latter being more likely....So thanks in your attempt to Educate me..... Ain't it just ain't it 😎 lols
It's in the crank case set in bearings , as long as you Don't force the case back together it holds its ( True ) and runs vibration free allowing engine to hit maximum RPM range
Couldn't you just sandwich a round block of steel in between where the crank arm is then just lightly hydralic press fit everything true?... If that makes sense to you, idk.
i don't think so
you need a copper hammer
Got u but what happens the first time you start the thing it's off again there's no way that would stay true.
its fixed in a set of bearings and will stay true