Hello
I have a brand new ZDZ 80. This is boxed and not run.

when viewing the cylinder liner from inside the exhaust port, there are a number of large pits in the cylinder wall.
These are casting inclusions not removed during machining.

These are approx .5 to 1mm wide and have significant depth. I can see 3x in the small area I can see through the exhaust port.

Ive emailed ZDZ directly but have failed to get a reply.

I still have the original recipe for this engine and it was 515 Euro- not cheap.


I know it's outside of warranty but this is cleary
a manufacturing fault.
Any advice?

rodders