I skipped over this video waiting for the proper time were I could focus and concentrate on all your work. I've watch the eq build that lead up to this and now have a better understanding on the process. But I didn't follow on what you were tapping on for the fine tuning., I assume the round shaft base? Then my mind wanders to the fact of will it change the True when reassemble and motor running? Or on the other hand, if it's reassemble being out of True the frequency of rotation will increase the amount it not True overtime. My hat's off to you for the entire series. A major undertaking. 👍👍
I didn’t get into the actual process of truing the crank on camera because, well I was learning myself. I have a very good understanding of what I am doing now and the next crank I do, I will elaborate fully. The part I was hitting on is called the web. If the crank is out of true, it could cause vibration and premature bearing failure. Once it is true, it will not come out while running
You probably already know this, but i thought i would tell you in case you didnt. I have watched all of allen millyard videos. He is a master mechanic and fabricator and engineer. He has some info on doing this. I think you would enjoy his videos if you haven't heard of him already. He has some bikes in the barber museum.
Another awesome video. Picked up an OEM crank for a yz250 a few months ago came in at 8" out funny how they just send them in a box just big enough to fit with foam that doesn't even cover the whole crank, from memory the tolerance is 3". I also last week got a wrench rabbit kit for the daughter's kx65, first time using one of these kits and it came in at 7" out of wack not sure of the tolerance for that but I put it in as is. Keep making quality content mate learning alot, Awesome stuff.
I don't have a plate for separating the crank and so cut the pin. Then when I press it together I just press it on half way, then I true it up, then press it together with about .017 -.020. Using the pre spacing visual and measurements. And the shop book when available. I made my truing stand out of a 2 x 4 piece, 8" long with 2 pieces of aluminum plates cut to a "V" and sharpened to a point so the crank can rotate with very little friction. Never press the pin straight through both crank halves at the same time as distortion of the pin bore surface causes truing issues. I also don't have a press guide, but that would be nice. I have to use a straight edge
I appreciate the info. I made these tools to make this job easier and hopefully it will get easier the more I do. The plate was $6 from my local metal supplier and a bit of labor to cut it out makes it much easier I believe than trying to cut the pin I feel.
Авто/Мото
The first one is the hardest to get sometimes. Kudos
I’m sure you’re right about that. Thanks for watching.
Just thank you sir. That was just a fun 17 minute adventure of something I have always wanted to do.
Me too! Thank you for watching
This tool hands down will create better profit than any other.
Great work!
Thank you for your comment and for watching
Brilliant video good to see all that work making tools paying off 🙌🏻
Thank you. I agree!
Nice job buddy! Let's celebrate your success at Texas de Brazil 🎉
I’m still stuffed!
Awesome video again! Learned a ton! Thank you.
So did I. Thank you for your continued support
I skipped over this video waiting for the proper time were I could focus and concentrate on all your work. I've watch the eq build that lead up to this and now have a better understanding on the process. But I didn't follow on what you were tapping on for the fine tuning., I assume the round shaft base? Then my mind wanders to the fact of will it change the True when reassemble and motor running? Or on the other hand, if it's reassemble being out of True the frequency of rotation will increase the amount it not True overtime. My hat's off to you for the entire series. A major undertaking. 👍👍
I didn’t get into the actual process of truing the crank on camera because, well I was learning myself. I have a very good understanding of what I am doing now and the next crank I do, I will elaborate fully. The part I was hitting on is called the web. If the crank is out of true, it could cause vibration and premature bearing failure. Once it is true, it will not come out while running
You probably already know this, but i thought i would tell you in case you didnt. I have watched all of allen millyard videos. He is a master mechanic and fabricator and engineer. He has some info on doing this. I think you would enjoy his videos if you haven't heard of him already. He has some bikes in the barber museum.
I have not heard of him, thank you for the info
One thing I personally done to my shop press is to add a 5000 psi gauge! Not easy but is very useful!
Might I ask why?
I done it for Toyota sienna wheel bearing. Ended up finding it pretty handy.
Excellent!!!
Thank you!
Another awesome video. Picked up an OEM crank for a yz250 a few months ago came in at 8" out funny how they just send them in a box just big enough to fit with foam that doesn't even cover the whole crank, from memory the tolerance is 3". I also last week got a wrench rabbit kit for the daughter's kx65, first time using one of these kits and it came in at 7" out of wack not sure of the tolerance for that but I put it in as is. Keep making quality content mate learning alot, Awesome stuff.
As always, I appreciate your continued support
Nice, good job!!
Thank you
I don't have a plate for separating the crank and so cut the pin.
Then when I press it together I just press it on half way, then I true it up, then press it together with about .017 -.020. Using the pre spacing visual and measurements. And the shop book when available.
I made my truing stand out of a 2 x 4 piece, 8" long with 2 pieces of aluminum plates cut to a "V" and sharpened to a point so the crank can rotate with very little friction.
Never press the pin straight through both crank halves at the same time as distortion of the pin bore surface causes truing issues.
I also don't have a press guide, but that would be nice. I have to use a straight edge
I appreciate the info. I made these tools to make this job easier and hopefully it will get easier the more I do. The plate was $6 from my local metal supplier and a bit of labor to cut it out makes it much easier I believe than trying to cut the pin I feel.
FN mint buddy!
Ty
Wow now I see where the cost is on rebuilding the crankshafts comes from not the pressing its the parts and truing that is whats expensive.
It certainly takes time especially for me as I am green.
if you run that youll wear out those main bearings so dang fast. you need it within .001"
Any advice on how to get it closer?
Do you think that the yamaha yzf 250 2008 is a good bike and awesome content❤
The YZs are great bikes. Just make sure you keep up with your maintenance!