domokos said:

The scale is there on the photos in the OP. Each piece is about 6-7 mm across and 10-11 mm in length. They easily fit through. Here is a picture as I hold them in my hand:
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steve2286w said:

Op did that earlier , about 16-20mm , but what diameter gudgeon pin

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domokos said:

Dear forum members,

I have just changed the oil in my 2004 D2 TD5 and after having every filter replaced and the oil refilled I poured the old oil back into the container for disposal. Unfortunately at the end of the process I saw metal pieces in the oil. There were a bunch of small pieces/flakes and two bigger pieces. All parts are magnetizable, so this is no aluminium.

They look rather unique so I hope they can be IDd by the experienced one but this is beyond my knowledge so I'm asking for help here.

The initial idea by my mechanic was that these are parts broken off the cast iron housing of the oil pump holding the shaft. However looking at pictures from real oil pump assemblies those look very different namely I can see no ribbing on the outer shell of the cast housing, while the parts clearly exhibit some kind of ribs.

Scale is in centimeters. Holding the parts in hand one can say that the shaft that contacted the sliding surfaces was/is somewhere between 10 and 14 millimeters in diameter.

Any help appreciated.

Thank you,
Domokos

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