Eagle Cast cranks - QA?
You mena it's got taper of .0035 accross the journal? That is unacceptable. I typically measure taper around .0005-.0015. That's normal for a Chinese finished crank of anyone's brand and any cubic inch (IE big blocks too). Zero is "right". If the clearance accross the journal does not exceed .002 on the mains and .0025 on the rods, I'll run it with that much taper as noemally it's not every journal that is the high end of the spec. What I'm not sure about is why they would have to index grind it to .020 under. Seems like if .0035 is the problem, center grinding it to .010 under would be fine.
Sorry Sky, didn't mean to dis you. I thought that was already answered...