02-10-2012, 01:10 AM
Join Date: Jan 2010
Total Cats: 245
Measured my crank. Not sure if it needs to be machined
I in process of building my engine. I got my micrometer today (used Starrett in great condition). After measuring my crank I'm not sure if it's good to go or should be cut.
For reference, standard journal specs:
main: 1.9661" - 1.9667"
rod: 1.7693" - 1.7699"
I'm just using the last 2 numbers, so
Standard mains are 61-67 tens
Mine are average 65, with some parts 64 or 66. Great!
Standard rods are 93-99 tens
Mine, however, are 95 on average, with about 20% of measurements at 94. Is that too close to minimum spec? Should I cut the rod journals?
I want to track the car and not spin bearings.