Posted by LOU from Wi. on January 08, 2015 at 19:36:52 from (69.179.8.18):
Our 72 Ford F100 4X4 with a 75 cab has had a new experience. Since the muffler blew out, from the condenser separating from the wire and the fork terminal, the explosion caused the oil pressure to jump from 25 lbs to 50 lbs at idle. Checked it against a new gauge,still the same pressure reading 50 lbs cold. This engine all we did many years ago was to put new main bearings in it to help and ran STP oil treatment with each oil change (yearly). The oil is the same straight 30 weight,and was changed in the fall before plowing season,so it's not new oil. We have it plugged in with the block heater, and it starts like summer time. When we redid it we added a power steering pump to it which it never had from the factory.But back to the question, after the backfire why did the oil pressure increase? I never seen it happen before,any suggestions. It is used to plow around our tractor shed,so it is tractor related.lol. Picture is of the truck, before and after, it has a 390 V-8 with points system. LOU
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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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