Posted by jlb on July 03, 2000 at 16:39:16:
In Reply to: Re: Rotary Valve Oils? posted by Jay Bertolet on July 03, 2000 at 07:49:55:
Regarding 3-in-1: I worked with a master machinist many years ago on re-developing a paper tape punch (you young whipper snappers probably have never seen one). This machine used a close tolerance sintered shaft with springs wrapped around the shaft and bathed in oil. One thing I remember about our discussions was his disdain for 3-in-1. The issue was that it is vegetable oil based and there gets gummy when it dries.
FWIW
jlb