If you have an unmarked gauge, then I understand your clock face description. The real pressure should be above 60 when cold and stay above 20 when hot and above idle. (assumes good fresh oil like 15-40, or 10-40) If lower, or you are nervous, pull off the oil pan and check over the oil pump, and pickup screen. Those oil pumps have had issues with warped end plates. They can be flat sanded on a piece of glass to make them seal again. Look in the archives (search for) above for H oil pump repair. JimN
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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