The plastigage is wrong. period. it's out of the range.
Again, I measured .0266" smaller than the smallest stock size journal limit. They sell undersize bearings at .25mm(.01"), .5mm(.02"), and .75mm(.03"). The .75mm would overlap the journal by .003" so that can't be used. The .5mm US would make it .0069" clearance which is more than 3 times over the largest specified gap (.0022").
Even if a .75mm US bearing would work, I would just replace the crank becuase that means the journal, even though it appears good, had a lot of metal ground off by the spun bearing making it unreliable. I don't have an rA meter and I don't have a micrometer to check for taper and out of round and other critical things as such. So instead of risking another spun bearing, I'm going to just pull the engine and replace the crank and all the bearings.
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