Mastermind
Work Saw Specialist
Something like this I'm thinking.....
nope, centers on the endsSomething like this I'm thinking.....
Yup. And don't have to be perfectly aligned.nope, centers on the ends
The workshop that did a go-cart crankshaft for me fixed the runout by mounting the crank in a lathe at one end and then checking the runout with a dial indicator at the other end. They marked the high spot and then used two soft blow hammers to tap the crank around until it ran true.
My first m'cycle, a Ducati 350 single, had a pressed together crank w/roller bearing setup just like some saws
Nice! If you got some time, shoot a vid of it in action. I thought the only solution was a new/used crank.
I was gonna say that but I woulda been cheatin' cuz I already saw it on SH.crank press
To be honest its the first time i seen one since the early 90's ,i borrowed one to rebuild my yz125H crankI was gonna say that but I woulda been cheatin' cuz I already saw it on SH.
Is it a ported 3120 jug?
just a que...how to tell, when the journals are where they are, phased to a one another?? and if they aren't pressed together perfect, for zero runout,, wont straightening them proper, make the journal real loose??? just que........ not being wise at all, as this is something I have thought about...also, you could have, the crank halves, perfectly phased to each other,,and have the crank pin off just a bit?????It still has some runout.......now I gotta build a proper truing stand.
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