Filtered

Upon removal, found a two-inch-long piece of material in filter outlet, which appears to be the edge of a gasket. It could only have gotten there when the filter was manufactured. The material would have plugged small oil passages had it moved into the engine as it was on the downstream side of filter.

Editorial Staff

Tuesday, April 19, 2016 at 12:00 AM ET

Verified

Key Takeaways:

Numerous new oil filters exhibit manufacturing defects, including damaged or improperly threaded mounting studs and internal foreign material, leading to installation difficulties or potential engine damage.
Oil filters can experience structural failures, such as cracks in inner cones or the filter can, or separation from their base, even after minimal operational hours.
Filter issues also arise from installation problems like broken mounting studs or external contact with other engine components, leading to damage and oil leaks.

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Cessna 182T Skylane

Broken Mounting Stud

While trying to install a new engine oil filter, the filter would get partially tight then pop loose. Removed oil filter to find the center mounting stud had broken loose and displayed stripped threads where it is screwed into the oil filter.