Two years ago I put my 1968 220 into storage as I moved into a home with no garage, though I was planning to have one built. Everything was running smooth at that time. This past weekend I pulled the wagon out and moved it into the recently finished garage and started my restart process. I drained the oil, not too sludgy, but pretty black. When it was all drained I stuck my pinky finger into the drain and felt around for sludge. No sludge! but I did feel a few chunks. I managed to get a couple out and took a picture.


They are about the size of a grain of rice. I ran a magnet through the oil and didn't find any more than these, though they are only slightly magnetic.

So the question is, how much do I need to do? I had planned to flush a quart through the system then button up the bottom and add the full volume and idle the car till it is nice and warm and change the oil again. But if this is broken off of some critical part I don't want to make things worse.

Thoughts on what this was?