I purchased a set of 914-4 pistons and cylinders second hand from someone I believe to be reputable.
These are Mahle 94mm euro jobbers. New in the Mahle box.
As advertised, one cylinder had three broken fins. No big deal, according to stuff Jake has written. Well, when I get the package, one of the cylinders does indeed have three broken fins (all three together).
The three broken fins are at the widest part of the cylinder, and the fourth one (above the three widest) is cracked, right at the bolt hole. On the opposite side of the cylinder, another fin is cracked (second from the wide end). It looks like this cylinder might have taken a tumble from a kitchen table or something.
Is this cylinder usable... or do I need to seek redress with the seller?
Don't ask for pictures. I no longer have a digital camera. Don't ask.
-Lawrence