White Industries lists engines with flange runout. What does flange
runout tell about the engine?

It seems some prop strike engines have a larger flange runout reading
than others, and the larger the flange runout, the lower the price.
Why?


The higher the runout number, the more damage there is to either the
crank or the case. It depends on the exact engine series as to how bad
a number you can tolorate before the repair costs are closing in on
replacement costs.

For me, it's not worth dealing with an engine that has had a prop
strike unless one of two things are known:

1: The prop strike was with a wooden prop or

2: The case has already been through a complete inspection and the shop
is able to guarantee that the case has no damage, visable or hidden,
and that the case will meet or beat the table of limitations the
manufacturer has for that engine.

Craig C.