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NA/NB Crankshaft snout diameter

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Old 06-13-2022, 11:48 AM
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Default NA/NB Crankshaft snout diameter
Hi, I am just curious if anyone has the snout diameter for the crankshaft where the harmonic balancer bolts on. I am wanting to use a miata balancer on a different engine because of parts availability and the convenient design.
This is the diameter I need:

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Old 06-13-2022, 02:30 PM
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Quick n' dirty measurement on a stock pulley I had at hand says 27mm
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Old 06-13-2022, 03:07 PM
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Ok! Thank you. My crank is 25mm... ofc cant find anything like that, but I think machining a pulley boss is the way to go for me anyway
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