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John Hart -> RE: Synthetics (7/1/2008 12:41:53 PM)
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Now, y''all may not think this is pertinent, but I just wanted to throw it in anyway. About 20 years ago, I conducted a test that I never submitted the results to anyone, but I''ll throw it out here just for information.
In the Navy, we had Teletype machines that ran 24-7, and the motors on these machines would get very hot and the bearings would fail. For this reason, we did frequent overhauls on the motors to keep the unexpected failures to a minimum.
One night, we put a thermocouple on the motor bearings just to monitor the actual heat buildup of a typical machine, and found that it rose to 180F within the first 30 minutes and then would level off. The motor bearings, depending on the amount of teletype traffic, would flutuate between 180 and 200 degrees. This was all with the standard bearing grease as specified in the official specification.
So....then we cleaned all that grease out of the bearings with Trichloroethane and a Sonic Cleaner, then sprayed them with Teflon lubricant. (You couldn''t even see it). Then installed into the same motor. Temperature rose to 90F in the first 30 minutes. (the room temp was 72). We put it under load and it never went above 100F. So we decided to let it run for days under load. At the end of each watch, the results were passed to the next crew, and for 3 months, the temperature never deviated more than a few degrees.
We got yelled at for doing this test without permission, so we had to quit. But it was the coolest thing that this machine worked so hard, and you could touch it with your fingers right on the bearings.
Anyway....I was thinking about getting some of that stuff and mixing it with my oil and monitoring the engine temp....or finding a synthetic that had the microminiature teflon beads in the formula.
That''s my story.
Sorry for the interruption. [&o]
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