Okay, but how about the plug
The bearing had come apart and the filter was production based, so yes, I'm sure metal is everywhere, thus, its toast. But the question was, "is removing the plug to investigate the interior of the shaft a good idea?" Clearly, it would only be a good idea if the bearing failure is caught before becoming catastrophic (no reason to investigate further if rebuild is inevitable), even then however, only if the plug is "serviceable", i.e. a replacement is readily available. Is it?
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