If you plug the pickup screen with sludge you of course are in trouble. My point is that on a M farmall tractor you have a bypass oil filter. It receives oil from the same passage that is feeding the main bearings. No oil going through the oil filter goes to the bearings as it is dumped back into the oil pan and then is pumped again through system with the rest of the oil. So, if the filter is plugged you still have oil in gallery feeding the bearings. If the sludge is sufficient to plug the oil gallerys that is a different situation. If the sludge is gritty crud, you are feeding it to all the bearings regardless if filter is plugged or not. A full flow filter receives the oil from the oil pump and from there it goes into oil gallery so if the filter is doing it's job on those systems you will get the crud out. When filter plugs, the back pressure will open the bypass in the filter or filter base and still oil will flow to oil gallerys but it will be unfiltered.
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Today's Featured Article - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
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