My Pete rebuild

[Nostalgic]

The crank is kind of W-shaped, which looks weird when plotted on Cummin's chart since it's has a slight twist as well. I wrote down my first plot, and was getting 5" readings, so had to re-do my measurements and clock it all again. I found my o'clock by marking on the journal when the dial indicator started to rise and hit .001", then whatever max reading, then back down to .001" so that I could pick the right clock "time" in the middle. Lots of room for error, or for a non computer controlled inspection to fudge the numbers. Looking at the crank straight down with my sharpie marks on the journals, it's kind of

~-___---""---___-~

2, 0, 2, 3, 3, 2, 0, 2

^ front oil seal
^#1
^#2, etc.

1 & 7 are always zero (if they're not, then the journal is egg shaped).

Now, I know pretty much nothing about manufacturing a crankshaft (or thousands), but just with my small sample, I'd say it's pretty common (At least with ISX cranks) to get them imperfect, which would be why it's fairly common to find new engines with different sized bearings due to regrinding of the crank.