Another myth put out to pasture

[itslow]

Originally Posted by 37 Coupe

How does this put the myth to rest? If properly stored they should have no run out. I wouldn't be happy checking for run out on a shaft of any type and finding .003.

Everything will have some amount of run-out to one degree or another. It is next to impossible to machine any turned shaft, whether it be a crankshaft or not, with absolutely zero run-out.

The real question is: What amount of run-out is acceptable for a Flathead crankshaft?

Lots of speculation on this subject by folk (both here and elsewhere) that have little to no background in mechanics of materials and are instead solely relying on hearsay.