Then why did the oil pressure change with the different filters? If the gauges were driven dumb from the ecm. Reducing delta P across the filtering media. Would have no impact upon the panel display(s). Oil gallery pressure would increase if the oil pump relief valve spent less time open or open less with the reduced restriction filter. The restriction to oil flow would be reduced in the filter. Thus increasing pressure in the engine's oil galleries if the lube gallery passges/orfices metering stayed constant.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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