Posted by Tom OConnor on December 17, 2014 at 21:09:34 from (71.238.113.254):
In Reply to: Semi traffic and speed posted by Edd in KY on December 17, 2014 at 10:03:29:
My road tractor was built in 1993 and at that time there was a big shift on to using larger engines in over the road trucks and running them slower for greater economy. (400 to 465 horsepower.) Most all these trucks came out of the factory with the computer set so they would govern out at about sixty eight to seventy miles per hour when in the highest gear. In a normal setting a inline six cylinder engine would turn up to 2300 to 2500 RPM's in all gears and when finally shifted to high the governor would kick in at about 1600 rpm's. This is one reason you will see a lot of trucks running at about the same speed. That being said all it takes is for the owner to have the dealership hook up their computer and either reset the governor setting or release it all together. Release it altogether and you can have a truck that will easily go up over one hundred miles per hour. The bigger engines really did help the fuel mileage and also you seldom needed to down shift on many of the grades.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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