Originally Posted by ependydad
I have no dog in this fight but care to link/quote your source?
He may be right on prevailing torque on the nuts on screw down valve stems but, in my other life (not camping), I'm a Federally authorized examiner trainer for commercial drivers and I'm a safety and risk management officer for a large commercial carrier.
I'm quoting the regulation concerning static balance indicators on tires from the FMCSA handbook, parts 40, 202, 325. 350-399 Inclusive. The regulation regarding manufacturers to mark the heaviest point on any new tire applied to class 6-8 truck tires and non commercial tires as well and has been in force for a number of years. Non commercial tires manufacturers are required to only provide one indicator whereas commercial tire manufacturers are required to provide 3 marks of different colors, usually red, green and blue with green being the centerpoint.
You can go read the regs if you want to. I happen to have the book sitting here but they are online and at your library...
ISBN Number is: 978-1-60287-592-0
My License number and Certification number is: 6998