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Makotosun
holding the crank level
- hcdiiiga
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holding the crank level was created by hcdiiiga
Yamaha DT3. My crank doesn't have any play, spins good, but I have a feeling it is out of alignment. Before I start concocting ways to hold it so I can spin it check with dial gauges, I though I would see if there any simple ways or ideas for this. Whatever I figure out will probably be overly complicated,
09 Jul 2023 07:52
#1
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- Tinkicker
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Replied by Tinkicker on topic holding the crank level
My left eye just developed a nervous tic.....
A good place to start would be a straight edge across the flywheels at 90 degrees to the crank pin.
A good place to start would be a straight edge across the flywheels at 90 degrees to the crank pin.
09 Jul 2023 08:07
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- hcdiiiga
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Replied by hcdiiiga on topic holding the crank level
See, that's what I mean, nothing that simple would occur to me.
09 Jul 2023 08:37
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- RT325
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Replied by RT325 on topic holding the crank level
Ok, why do you think it's out of whack.
You'd get an idea just getting someone to turn it over while closely observing the flywheel if it's still in place, or the shaft but look at the taper not the thread because its more than likely someone's belted the shaft over the years & thread center countersink may not be true 'if thread is bent'
Note--flywheel may not be perfectly 100% round but will be close enough to see any shaft wobble.
Just thinking outside the square--if it's vibrating it's more likely to be loose engine mount bolts, & don't miss that bottom rear 10mm thread size one as is a bit hidden.
You'd get an idea just getting someone to turn it over while closely observing the flywheel if it's still in place, or the shaft but look at the taper not the thread because its more than likely someone's belted the shaft over the years & thread center countersink may not be true 'if thread is bent'
Note--flywheel may not be perfectly 100% round but will be close enough to see any shaft wobble.
Just thinking outside the square--if it's vibrating it's more likely to be loose engine mount bolts, & don't miss that bottom rear 10mm thread size one as is a bit hidden.
09 Jul 2023 18:24
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