Rebuilding a crankshaft is an advanced project. It's completely different than balancing. Although this video is relatively short I go through all the steps and concepts needed to do an excellent job rebuilding a crankshaft.
Пікірлер: 38
@jamesdenton36926 ай бұрын
Plain language , clear and concise . Most excellent.
@dougnash63166 ай бұрын
Great vid. Back in the day we used lead hammers. More mass, less damage. I have rebuilt H2R Kawasaki and Suzuki triples and they were challenging. Singles were a breeze.
@ChuckfromTrueTech6 ай бұрын
Same here. Built lots of twin & triple sled cranks. The odd 4 cyl. Singles are nice.
@cathy21286 ай бұрын
Thank's for your channel and your time. Pure Gold👍👍
@jasonyoung76736 ай бұрын
Very informative Chuck. Thank You for your experience & time & making this video 👍👍
@miro_s6 ай бұрын
Fantastic! What great videos you’re producing…
@Happypillz6 ай бұрын
Loving your content. I am learning a lot. I have a project bike and I am taking your little tips and tricks.
@therawlifefamily6 ай бұрын
great video!
@cooptroop56 ай бұрын
Kent Moore had a crank rebuild gig that had spacers so you could press to exact crank web widths! 👍 They were special tools for start up Yamaha dealerships in the 80’s
@ChuckfromTrueTech6 ай бұрын
That would be nice to have. I do all kinds of cranks, so tooling up might be expensive. I often use suspension shims.
@eastkyprogАй бұрын
What’s the best way to clean up galling on the inner crank web surface? When the crank locked up the bearing race dug into the web and roughed the surface up.
@ChuckfromTrueTechАй бұрын
Depends how bad it is. I’ve done it with a die stone many times. I’ve also cut it on the milling machine. If it’s that bad though I usually buy a new crank.
@mike95003 ай бұрын
nice!
@onthethrottle71046 ай бұрын
Wow, what an amazing technician - absolutely spot on. Great show, Chuck! How can you not give a thumbs up...
@ChuckfromTrueTech6 ай бұрын
🙏
@3dwezzy74011 күн бұрын
real men build their own cranks😮
@jakeb30255 ай бұрын
Did you make that set of v blocks? Looking to get a set similar.
@ChuckfromTrueTech5 ай бұрын
Had them built at a machine shop.
@hopperdropper71373 ай бұрын
Hi, great video thanks very much. A few questions... what sort of hand press do you call that? The jig that the crank sits in, can you buy those or did you get it especially made. If so what sort of spec does it need to be? Thanks very much
@ChuckfromTrueTech3 ай бұрын
All the jigs for crank building are custom made. For pressing them apart I have a bigger one & a smaller one for different sized cranks. The V-block setup I had made by a friend. If you want one I can refer you to him. I bet he has the CAD files still. The press is just a cheap 10 ton.
@hopperdropper71373 ай бұрын
Hi... yeah that would be great. I'm in the UK so its probably to far to ship but if he has the CNC files might be able to build them. Thanks very much its for my kart racing engines
@hopperdropper71373 ай бұрын
Hi... I've found a press. I've got a few more jig questions. Are your resssed jigs 22mm mild steel plate? The pair of raised jigs look like 25mm?
@rwwells36346 ай бұрын
I have a older ktm 300 crank with larger plastic inserts on it, would using a special tool like that to press it apart crush these plastic inserts?
@ChuckfromTrueTech6 ай бұрын
I haven’t come across a crank that is tight enough to crush the stuffers. Building cranks requires attention to detail though, and an understanding of the factors involved.
@rwwells36346 ай бұрын
@@ChuckfromTrueTechalright good to know, so i should be good to make up a tool like that and press it apart? of course keeping an eye on things as well
@syndeko16326 ай бұрын
Hello I have a question about the crank pin. Is it okay if the pin is offet to one direction by a small amount, like 0.1mm, or is that unacceptable? When I pressed my crank back together, the pin is slightly offset and is slightly above the crank web on one side, and slightly under on the other side. Is there any way to fix this without taking the whole crank apart again?
@ChuckfromTrueTech6 ай бұрын
Of course it’s not ideal, but as long as the pin isn’t interfering with the case it should be ok. I would adjust it by putting it back in the disassembly jig, pressing the pin back slightly on the protruding side & then doing the final measurement on the opposite side again.
@syndeko16326 ай бұрын
@@ChuckfromTrueTech Ill do that today, thanks
@eastkyprogАй бұрын
What kind/size press are you using?
@ChuckfromTrueTechАй бұрын
Chinese 10 ton. It’s enough for any crank I’ve come across and I can feel what it’s doing.
@leepeffer1304Ай бұрын
Do you do crank work or is there someone you would recommend sending one to? Thanks.
@ChuckfromTrueTechАй бұрын
I do but if you have to ship it, it’s usually faster & the same price to get a crank assembly.
@leepeffer1304Ай бұрын
@@ChuckfromTrueTech not sure this crank assy can be purchased unfortunately.
@digitalmatrix0119 күн бұрын
Can I send you a 2 stroke crank to work on?
@ChuckfromTrueTech19 күн бұрын
You could but you could probably buy a new one for the same price by the time you factor in shipping.