Bill
That's excellent, and much easier than I was thinking! Tomorrow I'll get a couple metric bolts and thread them into the holes on my crank pulley, and measure across them. Seems like one could measure across the bolts outside-outside and subtract, or inside-inside and add, the bolt diameter. If the drilled holes are a little oversize I don't think it would matter.
Probably need a tap also, as those holes are probably pretty crusty and need to be chased first. There's an industrial supply nearby that carries metric fasteners. My knowledge of metric fasteners is pretty shaky, I guess you're saying there are there different pitches? I'll go thru what bolts I've removed so far and see if anything matches. I'll let you know if I find the right bolts.
Thanks!
Paul
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